Attachment 133285 Details for Bug 102069 – ddcutil interrogate on amdgpu

ddcutil interrogate on amdgpu

hd7850-interrogate.txt (text/plain), 152.80 KB, created by Gerben Meijer on 2017-08-07 12:43:46 UTC

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Creator: Gerben Meijer

Created: 2017-08-07 12:43:46 UTC

Size: 152.80 KB

patch

obsolete

>Failure getting EDID for /dev/i2c-9: status code=EREMOTEIO(-121): Remote I/O error
>Output level:               Verbose
>Reporting DDC data errors:  false
>Trace groups active:        none
>Force I2C slave address:    false
>
>Setting output level verbose...
>Setting maximum retries...
>Forcing --stats...
>Forcing --force-slave-address..
>This command will take a while to run...
>
>
>*** Basic System Information ***
>
>ddcutil version: 0.8.4
>
>/proc/version:
>   Linux version 4.12.4 (root@believe) (gcc version 6.3.0 20170316 (Debian 6.3.0-9) ) #3 SMP PREEMPT Fri Aug 4 15:54:08 CEST 2017
>
>/etc/os-release...
>   PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
>
>/proc/cmdline:
>   BOOT_IMAGE=/boot/vmlinuz-4.12.4 root=UUID=01892caf-45be-4500-a6c8-ba261ab641e5 ro usbcore.autosuspend=-1 init=/bin/systemd video=DisplayPort-0:2560x1440-24@60 zswap.enabled=1 zswap.compressor=lz4 video=DisplayPort-1:2560x1440-24@60
>
>Processor information as reported by lscpu:
>   Architecture:          x86_64
>   CPU op-mode(s):        32-bit, 64-bit
>   Byte Order:            Little Endian
>   CPU(s):                8
>   On-line CPU(s) list:   0-7
>   Thread(s) per core:    2
>   Core(s) per socket:    4
>   Socket(s):             1
>   NUMA node(s):          1
>   Vendor ID:             GenuineIntel
>   CPU family:            6
>   Model:                 42
>   Model name:            Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
>   Stepping:              7
>   CPU MHz:               1599.975
>   CPU max MHz:           4200.0000
>   CPU min MHz:           1600.0000
>   BogoMIPS:              6800.19
>   Virtualization:        VT-x
>   L1d cache:             32K
>   L1i cache:             32K
>   L2 cache:              256K
>   L3 cache:              8192K
>   NUMA node0 CPU(s):     0-7
>   Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm epb tpr_shadow vnmi flexpriority ept vpid xsaveopt dtherm ida arat pln pts
>
>DMI Information from /sys/class/dmi/id:
>   Motherboard vendor:       ASRock
>   Motherboard product name: Z77 Extreme6
>   System vendor:            To Be Filled By O.E.M.
>   System product name:      To Be Filled By O.E.M.
>   Chassis vendor:           To Be Filled By O.E.M.
>   Chassis type:             3 - Desktop
>
>*** Primary Check 1: Identify video card and driver ***
>
>Obtaining card and driver information from /sys...
>
>Determining driver name and possibly version...
>   Driver name:    i915
>   Unable to determine driver version
>
>Video card identification:
>   Vendor:              8086       Intel Corporation
>   Device:              0102       2nd Generation Core Processor Family Integrated Graphics Controller
>   Subvendor/Subdevice: 1849/0102  ASRock Incorporation
>
>Determining driver name and possibly version...
>   Driver name:    amdgpu
>   Unable to determine driver version
>
>Video card identification:
>   Vendor:              1002       Advanced Micro Devices, Inc. [AMD/ATI]
>   Device:              6819       Pitcairn PRO [Radeon HD 7850 / R7 265 / R9 270 1024SP]
>   Subvendor/Subdevice: 174b/e218  PC Partner Limited / Sapphire Technology
>
>*** Primary Check 2: Check that /dev/i2c-* exist and writable ***
>
>(identify_i2c_devices) Identified 20 I2C devices
>
>Checking /dev/i2c-* devices...
>
>Unless the system is using the AMD proprietary driver fglrx, devices /dev/i2c-*
>must exist and the logged on user must have read/write permission for those
>devices (or at least those devices associated with monitors).
>Typically, this access is enabled by:
>  - setting the group for /dev/i2c-* to i2c
>  - setting group RW permissions for /dev/i2c-*
>  - making the current user a member of group i2c
>Alternatively, this could be enabled by just giving everyone RW permission
>The following tests probe for these conditions.
>
>Checking for /dev/i2c-* devices...
>   crw-rw---- 1 root i2c 89,  0 Aug  5 17:22 /dev/i2c-0
>   crw-rw---- 1 root i2c 89,  1 Aug  5 17:22 /dev/i2c-1
>   crw-rw---- 1 root i2c 89, 10 Aug  5 17:22 /dev/i2c-10
>   crw-rw---- 1 root i2c 89, 11 Aug  5 17:22 /dev/i2c-11
>   crw-rw---- 1 root i2c 89, 12 Aug  5 17:22 /dev/i2c-12
>   crw-rw---- 1 root i2c 89, 13 Aug  5 17:22 /dev/i2c-13
>   crw-rw---- 1 root i2c 89, 14 Aug  5 17:22 /dev/i2c-14
>   crw-rw---- 1 root i2c 89, 15 Aug  5 17:22 /dev/i2c-15
>   crw-rw---- 1 root i2c 89, 16 Aug  5 17:22 /dev/i2c-16
>   crw-rw---- 1 root i2c 89, 17 Aug  5 17:22 /dev/i2c-17
>   crw-rw---- 1 root i2c 89, 18 Aug  5 17:22 /dev/i2c-18
>   crw-rw---- 1 root i2c 89, 19 Aug  5 17:22 /dev/i2c-19
>   crw-rw---- 1 root i2c 89,  2 Aug  5 17:22 /dev/i2c-2
>   crw-rw---- 1 root i2c 89,  3 Aug  5 17:22 /dev/i2c-3
>   crw-rw---- 1 root i2c 89,  4 Aug  5 17:22 /dev/i2c-4
>   crw-rw---- 1 root i2c 89,  5 Aug  5 17:22 /dev/i2c-5
>   crw-rw---- 1 root i2c 89,  6 Aug  5 17:22 /dev/i2c-6
>   crw-rw---- 1 root i2c 89,  7 Aug  5 17:22 /dev/i2c-7
>   crw-rw---- 1 root i2c 89,  8 Aug  5 17:22 /dev/i2c-8
>   crw-rw---- 1 root i2c 89,  9 Aug  5 17:22 /dev/i2c-9
>
>Current user: root (0)
>
>Current user (root) has RW access to all /dev/i2c-* devices.
>
>Checking for group i2c...
>   Group i2c exists
>   WARNING: Current user root is NOT a member of group i2c
>
>Looking for udev nodes files that reference i2c:
>   grep: /etc/udev/makedev.d/*: No such file or directory
>
>Looking for udev rules files that reference i2c:
>   /lib/udev/rules.d/60-flashrom.rules:# http://www.diygadget.com/tiao-usb-multi-protocol-adapter-jtag-spi-i2c-serial.html
>   /lib/udev/rules.d/60-i2c-tools.rules:SUBSYSTEM=="i2c-dev",KERNEL=="i2c-[0-9]*", GROUP="i2c", MODE="0660"
>   grep: /run/udev/rules.d/*rules: No such file or directory
>
>*** Primary Check 3: Check that module i2c_dev is loaded ***
>
>Checking for module i2c_dev...
>   Module i2c_dev          is built into kernel
>Remaining i2c_dev detail is purely informational.
>
>Check that kernel module i2c_dev is being loaded by examining files where this would be specified...
>   grep: /run/modules-load.d/*conf: No such file or directory
>   grep: /usr/lib/modules-load.d/*conf: No such file or directory
>
>Check for any references to i2c_dev in /etc/modprobe.d ...
>   grep: /run/modprobe.d/*conf: No such file or directory
>
>*** Primary Check 4: Driver specific checks ***
>
>Performing driver specific checks...
>No driver specific checks apply.
>
>*** Additional probes ***
>
>Scanning /proc/modules for driver environment...
>   Found other loaded module: i2c_i801
>
>Using lspci to examine driver environment...
>Video controller:  Advanced Micro Devices, Inc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850 / R7 265 / R9 270 1024SP]
>
>
>Testing if modules are loaded using /sys...
>   Module amdgpu           is loaded
>   Module fglrx            is NOT loaded
>   Module i915             is loaded
>   Module nvidia           is NOT loaded
>   Module nouveau          is NOT loaded
>   Module radeon           is NOT loaded
>   Module vboxvideo        is NOT loaded
>   Module drm              is loaded
>   Module eeprom           is NOT loaded
>   Module i2c_algo_bit     is loaded
>   Module i2c_dev          is NOT loaded
>   Module i2c_piix4        is NOT loaded
>
>Examining /sys/bus/i2c/devices...
>   /sys/bus/i2c/devices/i2c-15/name: i915 gmbus dpd
>   /sys/bus/i2c/devices/i2c-3/name: AMDGPU i2c bit bus 0x93
>   /sys/bus/i2c/devices/i2c-13/name: i915 gmbus dpc
>   /sys/bus/i2c/devices/i2c-1/name: AMDGPU i2c bit bus 0x91
>   /sys/bus/i2c/devices/i2c-11/name: i915 gmbus vga
>   /sys/bus/i2c/devices/i2c-8/name: card0-DP-1
>   /sys/bus/i2c/devices/i2c-18/name: DPDDC-D
>   /sys/bus/i2c/devices/i2c-6/name: AMDGPU i2c bit bus 0x96
>   /sys/bus/i2c/devices/i2c-16/name: DPDDC-B
>   /sys/bus/i2c/devices/i2c-4/name: AMDGPU i2c bit bus 0x94
>   /sys/bus/i2c/devices/i2c-14/name: i915 gmbus dpb
>   /sys/bus/i2c/devices/i2c-2/name: AMDGPU i2c bit bus 0x92
>   /sys/bus/i2c/devices/i2c-12/name: i915 gmbus panel
>   /sys/bus/i2c/devices/i2c-0/name: AMDGPU i2c bit bus 0x90
>   /sys/bus/i2c/devices/i2c-9/name: card0-DP-2
>   /sys/bus/i2c/devices/i2c-10/name: i915 gmbus ssc
>   /sys/bus/i2c/devices/i2c-19/name: SMBus I801 adapter at f040
>   /sys/bus/i2c/devices/i2c-7/name: AMDGPU i2c bit bus 0x97
>   /sys/bus/i2c/devices/i2c-17/name: DPDDC-C
>   /sys/bus/i2c/devices/i2c-5/name: AMDGPU i2c bit bus 0x95
>
>
>Examining I2C buses, as detected by I2C layer...
>
>   Detected I2C buses:
>
>   Bus /dev/i2c-0 found:    true
>   Bus /dev/i2c-0 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-1 found:    true
>   Bus /dev/i2c-1 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-2 found:    true
>   Bus /dev/i2c-2 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-3 found:    true
>   Bus /dev/i2c-3 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-4 found:    true
>   Bus /dev/i2c-4 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-5 found:    true
>   Bus /dev/i2c-5 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-6 found:    true
>   Bus /dev/i2c-6 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-7 found:    true
>   Bus /dev/i2c-7 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                  I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-8 found:    true
>   Bus /dev/i2c-8 probed:   true
>   Address 0x30 present:    true
>   Address 0x37 present:    true
>   Address 0x50 present:    true
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                  I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                  I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                  I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                  I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>   EDID synopsis:
>      Mfg id:           SAM
>      Model:            SMS27A850
>      Serial number:    H1AK500000
>      Manufacture year: 2011
>      EDID version:     1.4
>      Product code:     0x083d (2109)
>      Extra descriptor: Unspecified
>      Video input definition: 0xa5 - Digital Input (DisplayPort)
>      White x,y:        0.312, 0.329
>      Red   x,y:        0.650, 0.337
>      Green x,y:        0.296, 0.604
>      Blue  x,y:        0.147, 0.074
>      Extension blocks: 1
>   EDID source: 
>   EDID hex dump:
>              +0          +4          +8          +c            0   4   8   c   
>      +0000   00 ff ff ff ff ff ff 00 4c 2d 3d 08 00 00 00 00   ........L-=.....
>      +0010   07 15 01 04 a5 34 20 78 22 9f c1 a6 56 4b 9a 25   .....4 x"...VK.%
>      +0020   13 50 54 bf ef 80 71 4f 81 00 81 40 81 80 01 01   .PT...qO...@....
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 06 44 21 00 00 1a 00 00 00 fd 00 38 4b 1e   5..D!........8K.
>      +0050   5a 20 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53   Z ..      .....S
>      +0060   4d 53 32 37 41 38 35 30 0a 20 20 20 00 00 00 ff   MS27A850.   ....
>      +0070   00 48 31 41 4b 35 30 30 30 30 30 0a 20 20 01 31   .H1AK500000.  .1
>
>   Bus /dev/i2c-9 found:    true
>   Bus /dev/i2c-9 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    true
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                  I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                  I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                  I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                  I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-10 found:    true
>   Bus /dev/i2c-10 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-11 found:    true
>   Bus /dev/i2c-11 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-12 found:    true
>   Bus /dev/i2c-12 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-13 found:    true
>   Bus /dev/i2c-13 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-14 found:    true
>   Bus /dev/i2c-14 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-15 found:    true
>   Bus /dev/i2c-15 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                  I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                  I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-16 found:    true
>   Bus /dev/i2c-16 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                  I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                  I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                  I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                  I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-17 found:    true
>   Bus /dev/i2c-17 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                  I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                  I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                  I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                  I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-18 found:    true
>   Bus /dev/i2c-18 probed:   true
>   Address 0x30 present:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                  I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                  I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                  I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                  I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                  I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>xrandr connection report:
>   DisplayPort-0 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 518mm x 324mm
>   DisplayPort-1 connected 2560x1440+2560+0 (normal left inverted right x axis y axis) 0mm x 0mm
>   HDMI-A-0 disconnected (normal left inverted right x axis y axis)
>   DVI-I-0 disconnected (normal left inverted right x axis y axis)
>
>Checking for possibly conflicting programs...
>
>Examining I2C buses using i2cdetect... 
>
>   Probing bus /dev/i2c-0 using command "i2cdetect -y 0"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-1 using command "i2cdetect -y 1"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-2 using command "i2cdetect -y 2"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-3 using command "i2cdetect -y 3"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-4 using command "i2cdetect -y 4"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-5 using command "i2cdetect -y 5"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-6 using command "i2cdetect -y 6"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-7 using command "i2cdetect -y 7"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-8 using command "i2cdetect -y 8"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 
>      10: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 
>      20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 
>      30: 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 
>      40: 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 
>      50: 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 
>      60: 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 
>      70: 70 71 72 73 74 75 76 77                         
>
>   Probing bus /dev/i2c-9 using command "i2cdetect -y 9"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-10 using command "i2cdetect -y 10"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-11 using command "i2cdetect -y 11"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-12 using command "i2cdetect -y 12"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-13 using command "i2cdetect -y 13"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-14 using command "i2cdetect -y 14"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-15 using command "i2cdetect -y 15"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-16 using command "i2cdetect -y 16"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-17 using command "i2cdetect -y 17"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Probing bus /dev/i2c-18 using command "i2cdetect -y 18"
>           0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
>      00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      70: -- -- -- -- -- -- -- --                         
>
>   Device /dev/i2c-19 is a SMBus device.  Skipping i2cdetect.
>
>Performing basic scan of I2C devices using local sysenv functions...
>
>   Examining device /dev/i2c-0...
>      Device name (/sys/bus/i2c/devices/i2c-0/name): AMDGPU i2c bit bus 0x90
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-1...
>      Device name (/sys/bus/i2c/devices/i2c-1/name): AMDGPU i2c bit bus 0x91
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-2...
>      Device name (/sys/bus/i2c/devices/i2c-2/name): AMDGPU i2c bit bus 0x92
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-3...
>      Device name (/sys/bus/i2c/devices/i2c-3/name): AMDGPU i2c bit bus 0x93
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-4...
>      Device name (/sys/bus/i2c/devices/i2c-4/name): AMDGPU i2c bit bus 0x94
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-5...
>      Device name (/sys/bus/i2c/devices/i2c-5/name): AMDGPU i2c bit bus 0x95
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-6...
>      Device name (/sys/bus/i2c/devices/i2c-6/name): AMDGPU i2c bit bus 0x96
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-7...
>      Device name (/sys/bus/i2c/devices/i2c-7/name): AMDGPU i2c bit bus 0x97
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_PROTOCOL_MANGLING, 
>                     I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-8...
>      Device name (/sys/bus/i2c/devices/i2c-8/name): card0-DP-1
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                     I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                     I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                     I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                     I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Raw EDID:
>              +0          +4          +8          +c            0   4   8   c   
>      +0000   00 ff ff ff ff ff ff 00 4c 2d 3d 08 00 00 00 00   ........L-=.....
>      +0010   07 15 01 04 a5 34 20 78 22 9f c1 a6 56 4b 9a 25   .....4 x"...VK.%
>      +0020   13 50 54 bf ef 80 71 4f 81 00 81 40 81 80 01 01   .PT...qO...@....
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 06 44 21 00 00 1a 00 00 00 fd 00 38 4b 1e   5..D!........8K.
>      +0050   5a 20 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53   Z ..      .....S
>      +0060   4d 53 32 37 41 38 35 30 0a 20 20 20 00 00 00 ff   MS27A850.   ....
>      +0070   00 48 31 41 4b 35 30 30 30 30 30 0a 20 20 01 31   .H1AK500000.  .1
>      EDID synopsis:
>         Mfg id:           SAM
>         Model:            SMS27A850
>         Serial number:    H1AK500000
>         Manufacture year: 2011
>         EDID version:     1.4
>         Product code:     0x083d (2109)
>         Extra descriptor: Unspecified
>         Video input definition: 0xa5 - Digital Input (DisplayPort)
>         White x,y:        0.312, 0.329
>         Red   x,y:        0.650, 0.337
>         Green x,y:        0.296, 0.604
>         Blue  x,y:        0.147, 0.074
>         Extension blocks: 1
>      EDID source: 
>
>      Trying simple VCP read of feature 0x10...
>      read() returned 6e 88 02 00 10 00 00 64 00 64 a4
>      Attempt 1 to read feature succeeded.
>      DDC communication succeeded
>
>   Examining device /dev/i2c-9...
>      Device name (/sys/bus/i2c/devices/i2c-9/name): card0-DP-2
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                     I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                     I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                     I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                     I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=EREMOTEIO(-121): Remote I/O error
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: EREMOTEIO(-121): Remote I/O error
>      DDC communication failed.
>
>   Examining device /dev/i2c-10...
>      Device name (/sys/bus/i2c/devices/i2c-10/name): i915 gmbus ssc
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-11...
>      Device name (/sys/bus/i2c/devices/i2c-11/name): i915 gmbus vga
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-12...
>      Device name (/sys/bus/i2c/devices/i2c-12/name): i915 gmbus panel
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-13...
>      Device name (/sys/bus/i2c/devices/i2c-13/name): i915 gmbus dpc
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-14...
>      Device name (/sys/bus/i2c/devices/i2c-14/name): i915 gmbus dpb
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-15...
>      Device name (/sys/bus/i2c/devices/i2c-15/name): i915 gmbus dpd
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, I2C_FUNC_SMBUS_BLOCK_PROC_CALL, 
>                     I2C_FUNC_SMBUS_QUICK, I2C_FUNC_SMBUS_READ_BYTE, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE, I2C_FUNC_SMBUS_READ_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BYTE_DATA, I2C_FUNC_SMBUS_READ_WORD_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_WORD_DATA, I2C_FUNC_SMBUS_PROC_CALL, 
>                     I2C_FUNC_SMBUS_READ_BLOCK_DATA, I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ENXIO(-6): No such device or address
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ENXIO(-6): No such device or address
>      DDC communication failed.
>
>   Examining device /dev/i2c-16...
>      Device name (/sys/bus/i2c/devices/i2c-16/name): DPDDC-B
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                     I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                     I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                     I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                     I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ETIMEDOUT(-110): Connection timed out
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ETIMEDOUT(-110): Connection timed out
>      DDC communication failed.
>
>   Examining device /dev/i2c-17...
>      Device name (/sys/bus/i2c/devices/i2c-17/name): DPDDC-C
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                     I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                     I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                     I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                     I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ETIMEDOUT(-110): Connection timed out
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ETIMEDOUT(-110): Connection timed out
>      DDC communication failed.
>
>   Examining device /dev/i2c-18...
>      Device name (/sys/bus/i2c/devices/i2c-18/name): DPDDC-D
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_10BIT_ADDR, I2C_FUNC_SMBUS_PEC, 
>                     I2C_FUNC_SMBUS_BLOCK_PROC_CALL, I2C_FUNC_SMBUS_QUICK, 
>                     I2C_FUNC_SMBUS_READ_BYTE, I2C_FUNC_SMBUS_WRITE_BYTE, 
>                     I2C_FUNC_SMBUS_READ_BYTE_DATA, I2C_FUNC_SMBUS_WRITE_BYTE_DATA, 
>                     I2C_FUNC_SMBUS_READ_WORD_DATA, I2C_FUNC_SMBUS_WRITE_WORD_DATA, 
>                     I2C_FUNC_SMBUS_PROC_CALL, I2C_FUNC_SMBUS_READ_BLOCK_DATA, 
>                     I2C_FUNC_SMBUS_WRITE_BLOCK_DATA, I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>      Unable to read EDID, psc=ETIMEDOUT(-110): Connection timed out
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: ETIMEDOUT(-110): Connection timed out
>      DDC communication failed.
>
>   Examining device /dev/i2c-19...
>      Device name (/sys/bus/i2c/devices/i2c-19/name): SMBus I801 adapter at f040
>      Skipping SMBus device
>
>EDIDs reported by X11 for connected xrandr outputs:
>   xrandr output: DisplayPort-0
>      Raw EDID:
>              +0          +4          +8          +c            0   4   8   c   
>      +0000   00 ff ff ff ff ff ff 00 4c 2d 3d 08 00 00 00 00   ........L-=.....
>      +0010   07 15 01 04 a5 34 20 78 22 9f c1 a6 56 4b 9a 25   .....4 x"...VK.%
>      +0020   13 50 54 bf ef 80 71 4f 81 00 81 40 81 80 01 01   .PT...qO...@....
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 06 44 21 00 00 1a 00 00 00 fd 00 38 4b 1e   5..D!........8K.
>      +0050   5a 20 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53   Z ..      .....S
>      +0060   4d 53 32 37 41 38 35 30 0a 20 20 20 00 00 00 ff   MS27A850.   ....
>      +0070   00 48 31 41 4b 35 30 30 30 30 30 0a 20 20 01 31   .H1AK500000.  .1
>      EDID synopsis:
>         Mfg id:           SAM
>         Model:            SMS27A850
>         Serial number:    H1AK500000
>         Manufacture year: 2011
>         EDID version:     1.4
>         Product code:     0x083d (2109)
>         Extra descriptor: Unspecified
>         Video input definition: 0xa5 - Digital Input (DisplayPort)
>         White x,y:        0.312, 0.329
>         Red   x,y:        0.650, 0.337
>         Green x,y:        0.296, 0.604
>         Blue  x,y:        0.147, 0.074
>         Extension blocks: 1
>      EDID source: 
>
>
>Probing I2C devices using udev, susbsystem i2c-dev...
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-1/i2c-8/i2c-dev/i2c-8
>   Device Node Path: /dev/i2c-8
>      struct udev_device at: 0xc8785891b0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-1/i2c-8/i2c-dev/i2c-8
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-1/i2c-8/i2c-dev/i2c-8
>         sysname:   i2c-8
>         sysnum:    8
>         devnode:   /dev/i2c-8
>         Properties:
>            DEVNAME -> /dev/i2c-8
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-1/i2c-8/i2c-dev/i2c-8
>            MAJOR -> 89
>            MINOR -> 8
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:8
>            device -> (null)
>            name -> card0-DP-1
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=8
>                      DEVNAME=i2c-8
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-2/i2c-9/i2c-dev/i2c-9
>   Device Node Path: /dev/i2c-9
>      struct udev_device at: 0xc87858be80
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-2/i2c-9/i2c-dev/i2c-9
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-2/i2c-9/i2c-dev/i2c-9
>         sysname:   i2c-9
>         sysnum:    9
>         devnode:   /dev/i2c-9
>         Properties:
>            DEVNAME -> /dev/i2c-9
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-2/i2c-9/i2c-dev/i2c-9
>            MAJOR -> 89
>            MINOR -> 9
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:9
>            device -> (null)
>            name -> card0-DP-2
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=9
>                      DEVNAME=i2c-9
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-0/i2c-dev/i2c-0
>   Device Node Path: /dev/i2c-0
>      struct udev_device at: 0xc878592140
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-0/i2c-dev/i2c-0
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-0/i2c-dev/i2c-0
>         sysname:   i2c-0
>         sysnum:    0
>         devnode:   /dev/i2c-0
>         Properties:
>            DEVNAME -> /dev/i2c-0
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-0/i2c-dev/i2c-0
>            MAJOR -> 89
>            MINOR -> 0
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:0
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x90
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=0
>                      DEVNAME=i2c-0
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-1/i2c-dev/i2c-1
>   Device Node Path: /dev/i2c-1
>      struct udev_device at: 0xc878597f30
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-1/i2c-dev/i2c-1
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-1/i2c-dev/i2c-1
>         sysname:   i2c-1
>         sysnum:    1
>         devnode:   /dev/i2c-1
>         Properties:
>            DEVNAME -> /dev/i2c-1
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-1/i2c-dev/i2c-1
>            MAJOR -> 89
>            MINOR -> 1
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:1
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x91
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=1
>                      DEVNAME=i2c-1
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-2/i2c-dev/i2c-2
>   Device Node Path: /dev/i2c-2
>      struct udev_device at: 0xc87859df30
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-2/i2c-dev/i2c-2
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-2/i2c-dev/i2c-2
>         sysname:   i2c-2
>         sysnum:    2
>         devnode:   /dev/i2c-2
>         Properties:
>            DEVNAME -> /dev/i2c-2
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-2/i2c-dev/i2c-2
>            MAJOR -> 89
>            MINOR -> 2
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:2
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x92
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=2
>                      DEVNAME=i2c-2
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-3/i2c-dev/i2c-3
>   Device Node Path: /dev/i2c-3
>      struct udev_device at: 0xc8785a2c00
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-3/i2c-dev/i2c-3
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-3/i2c-dev/i2c-3
>         sysname:   i2c-3
>         sysnum:    3
>         devnode:   /dev/i2c-3
>         Properties:
>            DEVNAME -> /dev/i2c-3
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-3/i2c-dev/i2c-3
>            MAJOR -> 89
>            MINOR -> 3
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:3
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x93
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=3
>                      DEVNAME=i2c-3
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-4/i2c-dev/i2c-4
>   Device Node Path: /dev/i2c-4
>      struct udev_device at: 0xc8785a78d0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-4/i2c-dev/i2c-4
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-4/i2c-dev/i2c-4
>         sysname:   i2c-4
>         sysnum:    4
>         devnode:   /dev/i2c-4
>         Properties:
>            DEVNAME -> /dev/i2c-4
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-4/i2c-dev/i2c-4
>            MAJOR -> 89
>            MINOR -> 4
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:4
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x94
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=4
>                      DEVNAME=i2c-4
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-5/i2c-dev/i2c-5
>   Device Node Path: /dev/i2c-5
>      struct udev_device at: 0xc8785ac5a0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-5/i2c-dev/i2c-5
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-5/i2c-dev/i2c-5
>         sysname:   i2c-5
>         sysnum:    5
>         devnode:   /dev/i2c-5
>         Properties:
>            DEVNAME -> /dev/i2c-5
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-5/i2c-dev/i2c-5
>            MAJOR -> 89
>            MINOR -> 5
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:5
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x95
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=5
>                      DEVNAME=i2c-5
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-6/i2c-dev/i2c-6
>   Device Node Path: /dev/i2c-6
>      struct udev_device at: 0xc8785ae1e0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-6/i2c-dev/i2c-6
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-6/i2c-dev/i2c-6
>         sysname:   i2c-6
>         sysnum:    6
>         devnode:   /dev/i2c-6
>         Properties:
>            DEVNAME -> /dev/i2c-6
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-6/i2c-dev/i2c-6
>            MAJOR -> 89
>            MINOR -> 6
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:6
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x96
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=6
>                      DEVNAME=i2c-6
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-7/i2c-dev/i2c-7
>   Device Node Path: /dev/i2c-7
>      struct udev_device at: 0xc8785b3000
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-7/i2c-dev/i2c-7
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-7/i2c-dev/i2c-7
>         sysname:   i2c-7
>         sysnum:    7
>         devnode:   /dev/i2c-7
>         Properties:
>            DEVNAME -> /dev/i2c-7
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-7/i2c-dev/i2c-7
>            MAJOR -> 89
>            MINOR -> 7
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:7
>            device -> (null)
>            name -> AMDGPU i2c bit bus 0x97
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=7
>                      DEVNAME=i2c-7
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-3/i2c-16/i2c-dev/i2c-16
>   Device Node Path: /dev/i2c-16
>      struct udev_device at: 0xc8785b9e00
>         devpath:   /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-3/i2c-16/i2c-dev/i2c-16
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-3/i2c-16/i2c-dev/i2c-16
>         sysname:   i2c-16
>         sysnum:    16
>         devnode:   /dev/i2c-16
>         Properties:
>            DEVNAME -> /dev/i2c-16
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-3/i2c-16/i2c-dev/i2c-16
>            MAJOR -> 89
>            MINOR -> 16
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:16
>            device -> (null)
>            name -> DPDDC-B
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=16
>                      DEVNAME=i2c-16
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-4/i2c-17/i2c-dev/i2c-17
>   Device Node Path: /dev/i2c-17
>      struct udev_device at: 0xc8785bc990
>         devpath:   /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-4/i2c-17/i2c-dev/i2c-17
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-4/i2c-17/i2c-dev/i2c-17
>         sysname:   i2c-17
>         sysnum:    17
>         devnode:   /dev/i2c-17
>         Properties:
>            DEVNAME -> /dev/i2c-17
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-4/i2c-17/i2c-dev/i2c-17
>            MAJOR -> 89
>            MINOR -> 17
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:17
>            device -> (null)
>            name -> DPDDC-C
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=17
>                      DEVNAME=i2c-17
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-5/i2c-18/i2c-dev/i2c-18
>   Device Node Path: /dev/i2c-18
>      struct udev_device at: 0xc8785c16e0
>         devpath:   /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-5/i2c-18/i2c-dev/i2c-18
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-5/i2c-18/i2c-dev/i2c-18
>         sysname:   i2c-18
>         sysnum:    18
>         devnode:   /dev/i2c-18
>         Properties:
>            DEVNAME -> /dev/i2c-18
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-5/i2c-18/i2c-dev/i2c-18
>            MAJOR -> 89
>            MINOR -> 18
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:18
>            device -> (null)
>            name -> DPDDC-D
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=18
>                      DEVNAME=i2c-18
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/i2c-10/i2c-dev/i2c-10
>   Device Node Path: /dev/i2c-10
>      struct udev_device at: 0xc8785c6430
>         devpath:   /devices/pci0000:00/0000:00:02.0/i2c-10/i2c-dev/i2c-10
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/i2c-10/i2c-dev/i2c-10
>         sysname:   i2c-10
>         sysnum:    10
>         devnode:   /dev/i2c-10
>         Properties:
>            DEVNAME -> /dev/i2c-10
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/i2c-10/i2c-dev/i2c-10
>            MAJOR -> 89
>            MINOR -> 10
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:10
>            device -> (null)
>            name -> i915 gmbus ssc
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=10
>                      DEVNAME=i2c-10
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/i2c-11/i2c-dev/i2c-11
>   Device Node Path: /dev/i2c-11
>      struct udev_device at: 0xc8785cb180
>         devpath:   /devices/pci0000:00/0000:00:02.0/i2c-11/i2c-dev/i2c-11
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/i2c-11/i2c-dev/i2c-11
>         sysname:   i2c-11
>         sysnum:    11
>         devnode:   /dev/i2c-11
>         Properties:
>            DEVNAME -> /dev/i2c-11
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/i2c-11/i2c-dev/i2c-11
>            MAJOR -> 89
>            MINOR -> 11
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:11
>            device -> (null)
>            name -> i915 gmbus vga
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=11
>                      DEVNAME=i2c-11
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/i2c-12/i2c-dev/i2c-12
>   Device Node Path: /dev/i2c-12
>      struct udev_device at: 0xc8785cfed0
>         devpath:   /devices/pci0000:00/0000:00:02.0/i2c-12/i2c-dev/i2c-12
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/i2c-12/i2c-dev/i2c-12
>         sysname:   i2c-12
>         sysnum:    12
>         devnode:   /dev/i2c-12
>         Properties:
>            DEVNAME -> /dev/i2c-12
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/i2c-12/i2c-dev/i2c-12
>            MAJOR -> 89
>            MINOR -> 12
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:12
>            device -> (null)
>            name -> i915 gmbus panel
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=12
>                      DEVNAME=i2c-12
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/i2c-13/i2c-dev/i2c-13
>   Device Node Path: /dev/i2c-13
>      struct udev_device at: 0xc8785d4c20
>         devpath:   /devices/pci0000:00/0000:00:02.0/i2c-13/i2c-dev/i2c-13
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/i2c-13/i2c-dev/i2c-13
>         sysname:   i2c-13
>         sysnum:    13
>         devnode:   /dev/i2c-13
>         Properties:
>            DEVNAME -> /dev/i2c-13
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/i2c-13/i2c-dev/i2c-13
>            MAJOR -> 89
>            MINOR -> 13
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:13
>            device -> (null)
>            name -> i915 gmbus dpc
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=13
>                      DEVNAME=i2c-13
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/i2c-14/i2c-dev/i2c-14
>   Device Node Path: /dev/i2c-14
>      struct udev_device at: 0xc8785d9970
>         devpath:   /devices/pci0000:00/0000:00:02.0/i2c-14/i2c-dev/i2c-14
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/i2c-14/i2c-dev/i2c-14
>         sysname:   i2c-14
>         sysnum:    14
>         devnode:   /dev/i2c-14
>         Properties:
>            DEVNAME -> /dev/i2c-14
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/i2c-14/i2c-dev/i2c-14
>            MAJOR -> 89
>            MINOR -> 14
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:14
>            device -> (null)
>            name -> i915 gmbus dpb
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=14
>                      DEVNAME=i2c-14
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:02.0/i2c-15/i2c-dev/i2c-15
>   Device Node Path: /dev/i2c-15
>      struct udev_device at: 0xc8785de6c0
>         devpath:   /devices/pci0000:00/0000:00:02.0/i2c-15/i2c-dev/i2c-15
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:02.0/i2c-15/i2c-dev/i2c-15
>         sysname:   i2c-15
>         sysnum:    15
>         devnode:   /dev/i2c-15
>         Properties:
>            DEVNAME -> /dev/i2c-15
>            DEVPATH -> /devices/pci0000:00/0000:00:02.0/i2c-15/i2c-dev/i2c-15
>            MAJOR -> 89
>            MINOR -> 15
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:15
>            device -> (null)
>            name -> i915 gmbus dpd
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=15
>                      DEVNAME=i2c-15
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:1f.3/i2c-19/i2c-dev/i2c-19
>   Device Node Path: /dev/i2c-19
>      struct udev_device at: 0xc8785e3410
>         devpath:   /devices/pci0000:00/0000:00:1f.3/i2c-19/i2c-dev/i2c-19
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:1f.3/i2c-19/i2c-dev/i2c-19
>         sysname:   i2c-19
>         sysnum:    19
>         devnode:   /dev/i2c-19
>         Properties:
>            DEVNAME -> /dev/i2c-19
>            DEVPATH -> /devices/pci0000:00/0000:00:1f.3/i2c-19/i2c-dev/i2c-19
>            MAJOR -> 89
>            MINOR -> 19
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:19
>            device -> (null)
>            name -> SMBus I801 adapter at f040
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=19
>                      DEVNAME=i2c-19
>
>Summary of udev I2C devices
>   Subsystem   Sysname    Sysattr Name                        Devpath
>   i2c-dev     i2c-0      AMDGPU i2c bit bus 0x90             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-0/i2c-dev/i2c-0
>   i2c-dev     i2c-1      AMDGPU i2c bit bus 0x91             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-1/i2c-dev/i2c-1
>   i2c-dev     i2c-2      AMDGPU i2c bit bus 0x92             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-2/i2c-dev/i2c-2
>   i2c-dev     i2c-3      AMDGPU i2c bit bus 0x93             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-3/i2c-dev/i2c-3
>   i2c-dev     i2c-4      AMDGPU i2c bit bus 0x94             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-4/i2c-dev/i2c-4
>   i2c-dev     i2c-5      AMDGPU i2c bit bus 0x95             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-5/i2c-dev/i2c-5
>   i2c-dev     i2c-6      AMDGPU i2c bit bus 0x96             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-6/i2c-dev/i2c-6
>   i2c-dev     i2c-7      AMDGPU i2c bit bus 0x97             /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-7/i2c-dev/i2c-7
>   i2c-dev     i2c-8      card0-DP-1                          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-1/i2c-8/i2c-dev/i2c-8
>   i2c-dev     i2c-9      card0-DP-2                          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-2/i2c-9/i2c-dev/i2c-9
>   i2c-dev     i2c-10     i915 gmbus ssc                      /devices/pci0000:00/0000:00:02.0/i2c-10/i2c-dev/i2c-10
>   i2c-dev     i2c-11     i915 gmbus vga                      /devices/pci0000:00/0000:00:02.0/i2c-11/i2c-dev/i2c-11
>   i2c-dev     i2c-12     i915 gmbus panel                    /devices/pci0000:00/0000:00:02.0/i2c-12/i2c-dev/i2c-12
>   i2c-dev     i2c-13     i915 gmbus dpc                      /devices/pci0000:00/0000:00:02.0/i2c-13/i2c-dev/i2c-13
>   i2c-dev     i2c-14     i915 gmbus dpb                      /devices/pci0000:00/0000:00:02.0/i2c-14/i2c-dev/i2c-14
>   i2c-dev     i2c-15     i915 gmbus dpd                      /devices/pci0000:00/0000:00:02.0/i2c-15/i2c-dev/i2c-15
>   i2c-dev     i2c-16     DPDDC-B                             /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-3/i2c-16/i2c-dev/i2c-16
>   i2c-dev     i2c-17     DPDDC-C                             /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-4/i2c-17/i2c-dev/i2c-17
>   i2c-dev     i2c-18     DPDDC-D                             /devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-5/i2c-18/i2c-dev/i2c-18
>   i2c-dev     i2c-19     SMBus I801 adapter at f040          /devices/pci0000:00/0000:00:1f.3/i2c-19/i2c-dev/i2c-19
>
>Looking for udev devices with name attribute DPMST...
>Summary of udev DPMST devices...
>   No devices detected
>
>Examining system logs...
>
>   Checking dmesg for video and I2C related lines...
>      [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.12.4 root=UUID=01892caf-45be-4500-a6c8-ba261ab641e5 ro usbcore.autosuspend=-1 init=/bin/systemd video=DisplayPort-0:2560x1440-24@60 zswap.enabled=1 zswap.compressor=lz4 video=DisplayPort-1:2560x1440-24@60
>      [    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.12.4 root=UUID=01892caf-45be-4500-a6c8-ba261ab641e5 ro usbcore.autosuspend=-1 init=/bin/systemd video=DisplayPort-0:2560x1440-24@60 zswap.enabled=1 zswap.compressor=lz4 video=DisplayPort-1:2560x1440-24@60
>      [    0.706189] pci 0000:01:00.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
>      [    1.240651] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
>      [    1.240838] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input2
>      [    1.268036] [drm] amdgpu kernel modesetting enabled.
>      [    1.268174] [drm] initializing kernel modesetting (PITCAIRN 0x1002:0x6819 0x174B:0xE218 0x00).
>      [    1.268180] amdgpu 0000:01:00.0: VM size (-1) must be a power of 2
>      [    1.268186] [drm] register mmio base: 0xF7C00000
>      [    1.268188] [drm] register mmio size: 262144
>      [    1.293408] [drm] BIOS signature incorrect 68 55
>      [    1.293434] [drm] GPU post is not needed
>      [    1.293437] [drm] Changing default dispclk from 600Mhz to 625Mhz
>      [    1.293519] [drm] vm size is 64 GB, block size is 13-bit
>      [    1.293550] amdgpu 0000:01:00.0: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used)
>      [    1.293555] amdgpu 0000:01:00.0: GTT: 3072M 0x0000000080000000 - 0x000000013FFFFFFF
>      [    1.293561] [drm] Detected VRAM RAM=2048M, BAR=256M
>      [    1.293564] [drm] RAM width 256bits GDDR5
>      [    1.293682] [drm] amdgpu: 2048M of VRAM memory ready
>      [    1.293684] [drm] amdgpu: 3072M of GTT memory ready.
>      [    1.293725] [drm] GART: num cpu pages 786432, num gpu pages 786432
>      [    1.301028] amdgpu 0000:01:00.0: PCIE GART of 3072M enabled (table at 0x0000000000040000).
>      [    1.301055] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>      [    1.301058] [drm] Driver supports precise vblank timestamp query.
>      [    1.301078] amdgpu 0000:01:00.0: amdgpu: using MSI.
>      [    1.301092] [drm] amdgpu: irq initialized.
>      [    1.301119] [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
>      [    1.301136] [drm] Internal thermal controller with fan control
>      [    1.301146] [drm] amdgpu: dpm initialized
>      [    1.301236] [drm] AMDGPU Display Connectors
>      [    1.301238] [drm] Connector 0:
>      [    1.301241] [drm]   DP-1
>      [    1.301243] [drm]   HPD4
>      [    1.301245] [drm]   DDC: 0x194c 0x194c 0x194d 0x194d 0x194e 0x194e 0x194f 0x194f
>      [    1.301249] [drm]   Encoders:
>      [    1.301252] [drm]     DFP1: INTERNAL_UNIPHY2
>      [    1.301254] [drm] Connector 1:
>      [    1.301256] [drm]   DP-2
>      [    1.301258] [drm]   HPD5
>      [    1.301261] [drm]   DDC: 0x1950 0x1950 0x1951 0x1951 0x1952 0x1952 0x1953 0x1953
>      [    1.301265] [drm]   Encoders:
>      [    1.301267] [drm]     DFP2: INTERNAL_UNIPHY2
>      [    1.301269] [drm] Connector 2:
>      [    1.301271] [drm]   HDMI-A-1
>      [    1.301273] [drm]   HPD1
>      [    1.301276] [drm]   DDC: 0x1954 0x1954 0x1955 0x1955 0x1956 0x1956 0x1957 0x1957
>      [    1.301280] [drm]   Encoders:
>      [    1.301282] [drm]     DFP3: INTERNAL_UNIPHY1
>      [    1.301284] [drm] Connector 3:
>      [    1.301287] [drm]   DVI-I-1
>      [    1.301289] [drm]   HPD6
>      [    1.301291] [drm]   DDC: 0x1960 0x1960 0x1961 0x1961 0x1962 0x1962 0x1963 0x1963
>      [    1.301295] [drm]   Encoders:
>      [    1.301297] [drm]     DFP4: INTERNAL_UNIPHY
>      [    1.301300] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
>      [    1.302818] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000010, cpu addr 0xffff880807e8f010
>      [    1.302849] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000080000020, cpu addr 0xffff880807e8f020
>      [    1.302931] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000080000030, cpu addr 0xffff880807e8f030
>      [    1.302993] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000080000040, cpu addr 0xffff880807e8f040
>      [    1.303060] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000080000050, cpu addr 0xffff880807e8f050
>      [    1.303278] [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
>      [    1.303283] [drm] PCIE gen 2 link speeds already enabled
>      [    1.480570] [drm] ring test on 0 succeeded in 14 usecs
>      [    1.482580] [drm] ring test on 1 succeeded in 2 usecs
>      [    1.482589] [drm] ring test on 2 succeeded in 2 usecs
>      [    1.482598] [drm] ring test on 3 succeeded in 4 usecs
>      [    1.482608] [drm] ring test on 4 succeeded in 6 usecs
>      [    1.482892] [drm] ib test on ring 0 succeeded
>      [    1.482931] [drm] ib test on ring 1 succeeded
>      [    1.482964] [drm] ib test on ring 2 succeeded
>      [    1.482993] [drm] ib test on ring 3 succeeded
>      [    1.483019] [drm] ib test on ring 4 succeeded
>      [    1.513533] [drm] fb mappable at 0xE0644000
>      [    1.513542] [drm] vram apper at 0xE0000000
>      [    1.513547] [drm] size 14745600
>      [    1.513552] [drm] fb depth is 24
>      [    1.513557] [drm]    pitch is 10240
>      [    1.513650] fbcon: amdgpudrmfb (fb0) is primary device
>      [    1.639582] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device
>      [    1.920668] [drm] Initialized amdgpu 3.15.0 20150101 for 0000:01:00.0 on minor 0
>      [    1.920718] i915 0000:00:02.0: enabling device (0006 -> 0007)
>      [    1.921179] [drm] Disabling PPGTT because VT-d is on
>      [    1.921203] [drm] Memory usable by graphics device = 2048M
>      [    1.921219] [drm] VT-d active for gfx access
>      [    1.921231] [drm] Replacing VGA console driver
>      [    1.921374] [drm] DMAR active, disabling use of stolen memory
>      [    1.927298] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>      [    1.927337] [drm] Driver supports precise vblank timestamp query.
>      [    1.929826] amdgpu 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
>      [    1.933550] [drm] Initialized i915 1.6.0 20170403 for 0000:00:02.0 on minor 1
>      [    1.971951] [drm] Cannot find any crtc or sizes - going 1024x768
>      [    2.005515] i915 0000:00:02.0: fb1: inteldrmfb frame buffer device
>      [    2.281830] ata1.00: supports DRM functions and may not be fully accessible
>      [    2.289062] ata1.00: supports DRM functions and may not be fully accessible
>      [ 1239.711283] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1254.759124] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1294.548895] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1302.903807] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1333.231963] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1375.179481] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1380.199283] drm_dp_i2c_do_msg: 708 callbacks suppressed
>      [ 1533.742060] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1574.780428] drm_dp_i2c_do_msg: 8 callbacks suppressed
>      [ 1579.800195] drm_dp_i2c_do_msg: 708 callbacks suppressed
>
>   Checking journalctl for video and I2C related lines...
>      Aug 05 17:22:49 believe kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-4.12.4 root=UUID=01892caf-45be-4500-a6c8-ba261ab641e5 ro usbcore.autosuspend=-1 init=/bin/systemd video=DisplayPort-0:2560x1440-24@60 zswap.enabled=1 zswap.compressor=lz4 video=DisplayPort-1:2560x1440-24@60
>      Aug 05 17:22:49 believe kernel: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.12.4 root=UUID=01892caf-45be-4500-a6c8-ba261ab641e5 ro usbcore.autosuspend=-1 init=/bin/systemd video=DisplayPort-0:2560x1440-24@60 zswap.enabled=1 zswap.compressor=lz4 video=DisplayPort-1:2560x1440-24@60
>      Aug 05 17:22:49 believe kernel: pci 0000:01:00.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
>      Aug 05 17:22:49 believe kernel: ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
>      Aug 05 17:22:49 believe kernel: input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input2
>      Aug 05 17:22:49 believe kernel: [drm] amdgpu kernel modesetting enabled.
>      Aug 05 17:22:49 believe kernel: [drm] initializing kernel modesetting (PITCAIRN 0x1002:0x6819 0x174B:0xE218 0x00).
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: VM size (-1) must be a power of 2
>      Aug 05 17:22:49 believe kernel: [drm] register mmio base: 0xF7C00000
>      Aug 05 17:22:49 believe kernel: [drm] register mmio size: 262144
>      Aug 05 17:22:49 believe kernel: [drm] BIOS signature incorrect 68 55
>      Aug 05 17:22:49 believe kernel: [drm] GPU post is not needed
>      Aug 05 17:22:49 believe kernel: [drm] Changing default dispclk from 600Mhz to 625Mhz
>      Aug 05 17:22:49 believe kernel: [drm] vm size is 64 GB, block size is 13-bit
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used)
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: GTT: 3072M 0x0000000080000000 - 0x000000013FFFFFFF
>      Aug 05 17:22:49 believe kernel: [drm] Detected VRAM RAM=2048M, BAR=256M
>      Aug 05 17:22:49 believe kernel: [drm] RAM width 256bits GDDR5
>      Aug 05 17:22:49 believe kernel: [drm] amdgpu: 2048M of VRAM memory ready
>      Aug 05 17:22:49 believe kernel: [drm] amdgpu: 3072M of GTT memory ready.
>      Aug 05 17:22:49 believe kernel: [drm] GART: num cpu pages 786432, num gpu pages 786432
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: PCIE GART of 3072M enabled (table at 0x0000000000040000).
>      Aug 05 17:22:49 believe kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>      Aug 05 17:22:49 believe kernel: [drm] Driver supports precise vblank timestamp query.
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: amdgpu: using MSI.
>      Aug 05 17:22:49 believe kernel: [drm] amdgpu: irq initialized.
>      Aug 05 17:22:49 believe kernel: [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
>      Aug 05 17:22:49 believe kernel: [drm] Internal thermal controller with fan control
>      Aug 05 17:22:49 believe kernel: [drm] amdgpu: dpm initialized
>      Aug 05 17:22:49 believe kernel: [drm] AMDGPU Display Connectors
>      Aug 05 17:22:49 believe kernel: [drm] Connector 0:
>      Aug 05 17:22:49 believe kernel: [drm]   DP-1
>      Aug 05 17:22:49 believe kernel: [drm]   HPD4
>      Aug 05 17:22:49 believe kernel: [drm]   DDC: 0x194c 0x194c 0x194d 0x194d 0x194e 0x194e 0x194f 0x194f
>      Aug 05 17:22:49 believe kernel: [drm]   Encoders:
>      Aug 05 17:22:49 believe kernel: [drm]     DFP1: INTERNAL_UNIPHY2
>      Aug 05 17:22:49 believe kernel: [drm] Connector 1:
>      Aug 05 17:22:49 believe kernel: [drm]   DP-2
>      Aug 05 17:22:49 believe kernel: [drm]   HPD5
>      Aug 05 17:22:49 believe kernel: [drm]   DDC: 0x1950 0x1950 0x1951 0x1951 0x1952 0x1952 0x1953 0x1953
>      Aug 05 17:22:49 believe kernel: [drm]   Encoders:
>      Aug 05 17:22:49 believe kernel: [drm]     DFP2: INTERNAL_UNIPHY2
>      Aug 05 17:22:49 believe kernel: [drm] Connector 2:
>      Aug 05 17:22:49 believe kernel: [drm]   HDMI-A-1
>      Aug 05 17:22:49 believe kernel: [drm]   HPD1
>      Aug 05 17:22:49 believe kernel: [drm]   DDC: 0x1954 0x1954 0x1955 0x1955 0x1956 0x1956 0x1957 0x1957
>      Aug 05 17:22:49 believe kernel: [drm]   Encoders:
>      Aug 05 17:22:49 believe kernel: [drm]     DFP3: INTERNAL_UNIPHY1
>      Aug 05 17:22:49 believe kernel: [drm] Connector 3:
>      Aug 05 17:22:49 believe kernel: [drm]   DVI-I-1
>      Aug 05 17:22:49 believe kernel: [drm]   HPD6
>      Aug 05 17:22:49 believe kernel: [drm]   DDC: 0x1960 0x1960 0x1961 0x1961 0x1962 0x1962 0x1963 0x1963
>      Aug 05 17:22:49 believe kernel: [drm]   Encoders:
>      Aug 05 17:22:49 believe kernel: [drm]     DFP4: INTERNAL_UNIPHY
>      Aug 05 17:22:49 believe kernel: [drm]     CRT1: INTERNAL_KLDSCP_DAC1
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000010, cpu addr 0xffff880807e8f010
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000080000020, cpu addr 0xffff880807e8f020
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000080000030, cpu addr 0xffff880807e8f030
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000080000040, cpu addr 0xffff880807e8f040
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000080000050, cpu addr 0xffff880807e8f050
>      Aug 05 17:22:49 believe kernel: [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
>      Aug 05 17:22:49 believe kernel: [drm] PCIE gen 2 link speeds already enabled
>      Aug 05 17:22:49 believe kernel: [drm] ring test on 0 succeeded in 14 usecs
>      Aug 05 17:22:49 believe kernel: [drm] ring test on 1 succeeded in 2 usecs
>      Aug 05 17:22:49 believe kernel: [drm] ring test on 2 succeeded in 2 usecs
>      Aug 05 17:22:49 believe kernel: [drm] ring test on 3 succeeded in 4 usecs
>      Aug 05 17:22:49 believe kernel: [drm] ring test on 4 succeeded in 6 usecs
>      Aug 05 17:22:49 believe kernel: [drm] ib test on ring 0 succeeded
>      Aug 05 17:22:49 believe kernel: [drm] ib test on ring 1 succeeded
>      Aug 05 17:22:49 believe kernel: [drm] ib test on ring 2 succeeded
>      Aug 05 17:22:49 believe kernel: [drm] ib test on ring 3 succeeded
>      Aug 05 17:22:49 believe kernel: [drm] ib test on ring 4 succeeded
>      Aug 05 17:22:49 believe kernel: [drm] fb mappable at 0xE0644000
>      Aug 05 17:22:49 believe kernel: [drm] vram apper at 0xE0000000
>      Aug 05 17:22:49 believe kernel: [drm] size 14745600
>      Aug 05 17:22:49 believe kernel: [drm] fb depth is 24
>      Aug 05 17:22:49 believe kernel: [drm]    pitch is 10240
>      Aug 05 17:22:49 believe kernel: fbcon: amdgpudrmfb (fb0) is primary device
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device
>      Aug 05 17:22:49 believe kernel: [drm] Initialized amdgpu 3.15.0 20150101 for 0000:01:00.0 on minor 0
>      Aug 05 17:22:49 believe kernel: i915 0000:00:02.0: enabling device (0006 -> 0007)
>      Aug 05 17:22:49 believe kernel: [drm] Disabling PPGTT because VT-d is on
>      Aug 05 17:22:49 believe kernel: [drm] Memory usable by graphics device = 2048M
>      Aug 05 17:22:49 believe kernel: [drm] VT-d active for gfx access
>      Aug 05 17:22:49 believe kernel: [drm] Replacing VGA console driver
>      Aug 05 17:22:49 believe kernel: [drm] DMAR active, disabling use of stolen memory
>      Aug 05 17:22:49 believe kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>      Aug 05 17:22:49 believe kernel: [drm] Driver supports precise vblank timestamp query.
>      Aug 05 17:22:49 believe kernel: amdgpu 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
>      Aug 05 17:22:49 believe kernel: [drm] Initialized i915 1.6.0 20170403 for 0000:00:02.0 on minor 1
>      Aug 05 17:22:49 believe kernel: [drm] Cannot find any crtc or sizes - going 1024x768
>      Aug 05 17:22:49 believe kernel: i915 0000:00:02.0: fb1: inteldrmfb frame buffer device
>      Aug 05 17:22:49 believe kernel: ata1.00: supports DRM functions and may not be fully accessible
>      Aug 05 17:22:49 believe kernel: ata1.00: supports DRM functions and may not be fully accessible
>      Aug 05 17:22:49 believe systemd[1]: Starting Load/Save Screen Backlight Brightness of backlight:acpi_video0...
>      Aug 05 17:22:49 believe systemd[1]: Started Load/Save Screen Backlight Brightness of backlight:acpi_video0.
>      Aug 05 17:22:50 believe sensors[978]: amdgpu-pci-0100
>      Aug 05 17:22:50 believe systemd-logind[781]: Watching system buttons on /dev/input/event2 (Video Bus)
>      Aug 05 17:23:15 believe sudo[2389]:   gerben : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/tee /sys/class/backlight/acpi_video0/brightness
>      Aug 05 17:23:33 believe sudo[4147]:   gerben : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/tee /sys/class/backlight/acpi_video0/brightness
>      Aug 05 17:23:34 believe sudo[4162]:   gerben : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/tee /sys/class/backlight/acpi_video0/brightness
>      Aug 05 17:43:19 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:43:34 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:44:13 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:44:22 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:44:52 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:45:34 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:45:39 believe kernel: drm_dp_i2c_do_msg: 708 callbacks suppressed
>      Aug 05 17:48:13 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:48:54 believe kernel: drm_dp_i2c_do_msg: 8 callbacks suppressed
>      Aug 05 17:48:59 believe kernel: drm_dp_i2c_do_msg: 708 callbacks suppressed
>
>   Limiting output to 200 lines...
>   Checking Xorg.0.log for video and I2C related lines...
>      [    34.559] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.12.4 root=UUID=01892caf-45be-4500-a6c8-ba261ab641e5 ro usbcore.autosuspend=-1 init=/bin/systemd video=DisplayPort-0:2560x1440-24@60 zswap.enabled=1 zswap.compressor=lz4 video=DisplayPort-1:2560x1440-24@60
>      [    34.807] 	X.Org Video Driver: 23.0
>      [    34.809] (II) xfree86: Adding drm device (/dev/dri/card0)
>      [    34.809] (II) xfree86: Adding drm device (/dev/dri/card1)
>      [    34.947] 	ABI class: X.Org Video Driver, version 23.0
>      [    34.947] (II) LoadModule: "amdgpu"
>      [    34.947] (II) Loading /usr/lib/xorg/modules/drivers/amdgpu_drv.so
>      [    34.972] (II) Module amdgpu: vendor="X.Org Foundation"
>      [    34.972] 	Module class: X.Org Video Driver
>      [    34.972] 	ABI class: X.Org Video Driver, version 23.0
>      [    35.005] (II) AMDGPU: Driver for AMD Radeon:
>      	All GPUs supported by the amdgpu kernel driver
>      [    35.009] (**) AMDGPU(0): Depth 24, (--) framebuffer bpp 32
>      [    35.009] (II) AMDGPU(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps)
>      [    35.009] (==) AMDGPU(0): Default visual is TrueColor
>      [    35.009] (**) AMDGPU(0): Option "DRI" "3"
>      [    35.009] (**) AMDGPU(0): Option "TearFree" "on"
>      [    35.009] (==) AMDGPU(0): RGB weight 888
>      [    35.009] (II) AMDGPU(0): Using 8 bits per RGB (8 bit DAC)
>      [    35.009] (--) AMDGPU(0): Chipset: "AMD Radeon HD 7800 Series" (ChipID = 0x6819)
>      [    35.223] (II) AMDGPU(0): glamor detected, initialising EGL layer.
>      [    35.223] (**) AMDGPU(0): TearFree property default: on
>      [    35.223] (II) AMDGPU(0): KMS Pageflipping: enabled
>      [    35.234] (II) AMDGPU(0): Output DisplayPort-0 using monitor section S27A850D
>      [    35.234] (**) AMDGPU(0): Option "PreferredMode" "2560x1440"
>      [    35.234] (**) AMDGPU(0): Option "Position" "0 0"
>      [    35.234] (**) AMDGPU(0): Option "Disable" "false"
>      [    35.234] (**) AMDGPU(0): Option "Rotate" "normal"
>      [    35.241] (II) AMDGPU(0): Output DisplayPort-1 has no monitor section
>      [    35.242] (II) AMDGPU(0): Output HDMI-A-0 has no monitor section
>      [    35.250] (II) AMDGPU(0): Output DVI-I-0 has no monitor section
>      [    35.261] (II) AMDGPU(0): EDID for output DisplayPort-0
>      [    35.261] (II) AMDGPU(0): Manufacturer: SAM  Model: 83d  Serial#: 0
>      [    35.261] (II) AMDGPU(0): Year: 2011  Week: 7
>      [    35.261] (II) AMDGPU(0): EDID Version: 1.4
>      [    35.261] (II) AMDGPU(0): Digital Display Input
>      [    35.261] (II) AMDGPU(0): 8 bits per channel
>      [    35.261] (II) AMDGPU(0): Digital interface is DisplayPort
>      [    35.261] (II) AMDGPU(0): Max Image Size [cm]: horiz.: 52  vert.: 32
>      [    35.261] (II) AMDGPU(0): Gamma: 2.20
>      [    35.261] (II) AMDGPU(0): DPMS capabilities: Off
>      [    35.261] (II) AMDGPU(0): Supported color encodings: RGB 4:4:4 
>      [    35.261] (II) AMDGPU(0): First detailed timing is preferred mode
>      [    35.261] (II) AMDGPU(0): Preferred mode is native pixel format and refresh rate
>      [    35.261] (II) AMDGPU(0): redX: 0.650 redY: 0.337   greenX: 0.296 greenY: 0.604
>      [    35.261] (II) AMDGPU(0): blueX: 0.147 blueY: 0.074   whiteX: 0.312 whiteY: 0.329
>      [    35.261] (II) AMDGPU(0): Supported established timings:
>      [    35.261] (II) AMDGPU(0): 720x400@70Hz
>      [    35.261] (II) AMDGPU(0): 640x480@60Hz
>      [    35.261] (II) AMDGPU(0): 640x480@67Hz
>      [    35.261] (II) AMDGPU(0): 640x480@72Hz
>      [    35.261] (II) AMDGPU(0): 640x480@75Hz
>      [    35.261] (II) AMDGPU(0): 800x600@56Hz
>      [    35.261] (II) AMDGPU(0): 800x600@60Hz
>      [    35.261] (II) AMDGPU(0): 800x600@72Hz
>      [    35.261] (II) AMDGPU(0): 800x600@75Hz
>      [    35.261] (II) AMDGPU(0): 832x624@75Hz
>      [    35.261] (II) AMDGPU(0): 1024x768@60Hz
>      [    35.261] (II) AMDGPU(0): 1024x768@70Hz
>      [    35.261] (II) AMDGPU(0): 1024x768@75Hz
>      [    35.261] (II) AMDGPU(0): 1280x1024@75Hz
>      [    35.261] (II) AMDGPU(0): 1152x864@75Hz
>      [    35.261] (II) AMDGPU(0): Manufacturer's mask: 0
>      [    35.261] (II) AMDGPU(0): Supported standard timings:
>      [    35.261] (II) AMDGPU(0): #0: hsize: 1152  vsize 864  refresh: 75  vid: 20337
>      [    35.261] (II) AMDGPU(0): #1: hsize: 1280  vsize 800  refresh: 60  vid: 129
>      [    35.261] (II) AMDGPU(0): #2: hsize: 1280  vsize 960  refresh: 60  vid: 16513
>      [    35.261] (II) AMDGPU(0): #3: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
>      [    35.261] (II) AMDGPU(0): Supported detailed timing:
>      [    35.261] (II) AMDGPU(0): clock: 241.5 MHz   Image Size:  518 x 324 mm
>      [    35.261] (II) AMDGPU(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
>      [    35.261] (II) AMDGPU(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1481 v_border: 0
>      [    35.261] (II) AMDGPU(0): Ranges: V min: 56 V max: 75 Hz, H min: 30 H max: 90 kHz, PixClock max 325 MHz
>      [    35.261] (II) AMDGPU(0): Monitor name: SMS27A850
>      [    35.261] (II) AMDGPU(0): Serial No: H1AK500000
>      [    35.261] (II) AMDGPU(0): Number of EDID sections to follow: 1
>      [    35.261] (II) AMDGPU(0): EDID (in hex):
>      [    35.261] (II) AMDGPU(0): 	00ffffffffffff004c2d3d0800000000
>      [    35.261] (II) AMDGPU(0): 	07150104a5342078229fc1a6564b9a25
>      [    35.261] (II) AMDGPU(0): 	135054bfef80714f8100814081800101
>      [    35.261] (II) AMDGPU(0): 	010101010101565e00a0a0a029503020
>      [    35.261] (II) AMDGPU(0): 	350006442100001a000000fd00384b1e
>      [    35.261] (II) AMDGPU(0): 	5a20000a202020202020000000fc0053
>      [    35.261] (II) AMDGPU(0): 	4d533237413835300a202020000000ff
>      [    35.261] (II) AMDGPU(0): 	004831414b3530303030300a20200131
>      [    35.261] (II) AMDGPU(0): 	02030cc1230907078301000000000000
>      [    35.261] (II) AMDGPU(0): 	00000000000000000000000000000000
>      [    35.261] (II) AMDGPU(0): 	00000000000000000000000000000000
>      [    35.261] (II) AMDGPU(0): 	00000000000000000000000000000000
>      [    35.261] (II) AMDGPU(0): 	00000000000000000000000000000000
>      [    35.261] (II) AMDGPU(0): 	00000000000000000000000000000000
>      [    35.261] (II) AMDGPU(0): 	00000000000000000000000000000000
>      [    35.261] (II) AMDGPU(0): 	00000000000000000000000000000070
>      [    35.261] (II) AMDGPU(0): Printing probed modes for output DisplayPort-0
>      [    35.261] (II) AMDGPU(0): Modeline "2560x1440"x60.0  241.50  2560 2608 2640 2720  1440 1443 1448 1481 +hsync -vsync (88.8 kHz UeP)
>      [    35.261] (II) AMDGPU(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "1280x960"x60.0  108.00  1280 1376 1488 1800  960 961 964 1000 +hsync +vsync (60.0 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "1280x800"x59.8   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync (49.7 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "1152x864"x75.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "1024x768"x70.1   75.00  1024 1048 1184 1328  768 771 777 806 -hsync -vsync (56.5 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "832x624"x74.6   57.28  832 864 928 1152  624 625 628 667 -hsync -vsync (49.7 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "800x600"x72.2   50.00  800 856 976 1040  600 637 643 666 +hsync +vsync (48.1 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "640x480"x72.8   31.50  640 664 704 832  480 489 492 520 -hsync -vsync (37.9 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "640x480"x66.7   30.24  640 704 768 864  480 483 486 525 -hsync -vsync (35.0 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "640x480"x60.0   25.20  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
>      [    35.261] (II) AMDGPU(0): Modeline "720x400"x70.1   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
>      [    35.268] (II) AMDGPU(0): EDID for output DisplayPort-1
>      [    35.268] (II) AMDGPU(0): Printing probed modes for output DisplayPort-1
>      [    35.268] (II) AMDGPU(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
>      [    35.268] (II) AMDGPU(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
>      [    35.268] (II) AMDGPU(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
>      [    35.268] (II) AMDGPU(0): Modeline "848x480"x60.0   33.75  848 864 976 1088  480 486 494 517 +hsync +vsync (31.0 kHz e)
>      [    35.268] (II) AMDGPU(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
>      [    35.269] (II) AMDGPU(0): EDID for output HDMI-A-0
>      [    35.277] (II) AMDGPU(0): EDID for output DVI-I-0
>      [    35.277] (II) AMDGPU(0): Output DisplayPort-0 connected
>      [    35.277] (II) AMDGPU(0): Output DisplayPort-1 connected
>      [    35.277] (II) AMDGPU(0): Output HDMI-A-0 disconnected
>      [    35.277] (II) AMDGPU(0): Output DVI-I-0 disconnected
>      [    35.277] (II) AMDGPU(0): Using user preference for initial modes
>      [    35.277] (II) AMDGPU(0): Output DisplayPort-0 using initial mode 2560x1440 +0+0
>      [    35.277] (II) AMDGPU(0): Output DisplayPort-1 using initial mode 1024x768 +0+0
>      [    35.277] (II) AMDGPU(0): mem size init: gart size :bfee5000 vram size: s:7ebad000 visible:ebad000
>      [    35.277] (**) AMDGPU(0): Display dimensions: (597, 336) mm
>      [    35.277] (**) AMDGPU(0): DPI set to (108, 108)
>      [    35.277] (==) AMDGPU(0): Using gamma correction (1.0, 1.0, 1.0)
>      [    35.277] (II) AMDGPU(0): [DRI2] Setup complete
>      [    35.277] (II) AMDGPU(0): [DRI2]   DRI driver: radeonsi
>      [    35.277] (II) AMDGPU(0): [DRI2]   VDPAU driver: radeonsi
>      [    35.277] (II) AMDGPU(0): Front buffer pitch: 10240 bytes
>      [    35.278] (II) AMDGPU(0): SYNC extension fences enabled
>      [    35.278] (II) AMDGPU(0): Present extension enabled
>      [    35.278] (**) AMDGPU(0): DRI3 enabled
>      [    35.278] (==) AMDGPU(0): Backing store enabled
>      [    35.278] (II) AMDGPU(0): Direct rendering enabled
>      [    35.286] (II) AMDGPU(0): Use GLAMOR acceleration.
>      [    35.286] (II) AMDGPU(0): Acceleration enabled
>      [    35.286] (**) AMDGPU(0): DPMS enabled
>      [    35.286] (==) AMDGPU(0): Silken mouse enabled
>      [    35.286] (II) AMDGPU(0): Set up textured video (glamor)
>      [    35.286] (II) AMDGPU(0): RandR 1.2 enabled, ignore the following RandR disabled message.
>      [    35.349] (WW) AMDGPU(0): Option "Monitor-S27A850D" is not used
>      [    35.349] (WW) AMDGPU(0): Option "Monitor-XB270HU" is not used
>      [    35.349] (WW) AMDGPU(0): Option "VendorName" is not used
>      [    35.349] (WW) AMDGPU(0): Option "ModelName" is not used
>      [    35.349] (WW) AMDGPU(0): Option "PreferredMode" is not used
>      [    35.349] (WW) AMDGPU(0): Option "TargetRefresh" is not used
>      [    35.349] (WW) AMDGPU(0): Option "Position" is not used
>      [    35.349] (WW) AMDGPU(0): Option "Rotate" is not used
>      [    35.349] (WW) AMDGPU(0): Option "Disable" is not used
>      [    35.349] (WW) AMDGPU(0): Option "UseEdidDpi" is not used
>      [    35.354] (II) AIGLX: Loaded and initialized radeonsi
>      [    35.357] (II) AMDGPU(0): Setting screen physical size to 677 x 381
>      [    35.847] (II) config/udev: Adding input device Video Bus (/dev/input/event2)
>      [    35.847] (**) Video Bus: Applying InputClass "evdev keyboard catchall"
>      [    35.847] (II) Using input driver 'evdev' for 'Video Bus'
>      [    35.847] (**) Video Bus: always reports core events
>      [    35.847] (**) evdev: Video Bus: Device: "/dev/input/event2"
>      [    35.847] (--) evdev: Video Bus: Vendor 0 Product 0x6
>      [    35.847] (--) evdev: Video Bus: Found keys
>      [    35.847] (II) evdev: Video Bus: Configuring as keyboard
>      [    35.847] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input2/event2"
>      [    35.847] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 8)
>      [    36.478] (II) AMDGPU(0): Allocate new frame buffer 5120x1440
>      [    36.478] (II) AMDGPU(0):  => pitch 20480 bytes
>
>Probing connected monitors using libdrm...
>
>   Checking libdrm version using pkg-config...
>      2.4.81
>
>   Has a DRM kernel driver been loaded? (drmAvailable()): true
>
>   Probing device /dev/dri/card0...
>      Open succeeded for device: /dev/dri/card0
>
>      Drm driver version information:
>         Version:     3.15.0
>         Driver:      amdgpu
>         Date:        20150101
>         Description: AMD GPU
>
>      DRM library version: 1.3.0.
>
>      DRM Busid:  pci:0000:01:00.0
>
>      Device information:
>         bustype:                0 - pci
>         domain:bus:device.func: 0000:01:00.0
>         vendor    vid:pid:      0x1002:0x6819
>         subvendor vid:pid:      0x174b:0xe218
>         revision id:            0x0000
>
>      Is a modesetting capable driver attached to bus id: pci:0000:01:00.0?
>      (calling drmCheckModesettingAvailable())
>         Yes
>
>      Retrieving DRM resources...
>
>      Scanning defined properties...
>         Property  1:  EDID                 flags: 0x00000014 - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_BLOB
>         Property  2:  DPMS                 flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property  3:  PATH                 flags: 0x00000014 - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_BLOB
>         Property  4:  TILE                 flags: 0x00000014 - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_BLOB
>         Property  5:  link-status          flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property  6:  type                 flags: 0x0000000c - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_ENUM
>         Property  7:  SRC_X                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property  8:  SRC_Y                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property  9:  SRC_W                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 10:  SRC_H                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 11:  CRTC_X               flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 12:  CRTC_Y               flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 13:  CRTC_W               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 14:  CRTC_H               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 15:  FB_ID                flags: 0x80000040 - DRM_MODE_PROP_OBJECT, DRM_MODE_PROP_ATOMIC
>         Property 16:  IN_FENCE_FD          flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 17:  OUT_FENCE_PTR        flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 18:  CRTC_ID              flags: 0x80000040 - DRM_MODE_PROP_OBJECT, DRM_MODE_PROP_ATOMIC
>         Property 19:  ACTIVE               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 20:  MODE_ID              flags: 0x80000010 - DRM_MODE_PROP_BLOB, DRM_MODE_PROP_ATOMIC
>         Property 21:  DEGAMMA_LUT          flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 22:  DEGAMMA_LUT_SIZE     flags: 0x00000006 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_IMMUTABLE
>         Property 23:  CTM                  flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 24:  GAMMA_LUT            flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 25:  GAMMA_LUT_SIZE       flags: 0x00000006 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_IMMUTABLE
>         Property 26:  coherent             flags: 0x00000002 - DRM_MODE_PROP_RANGE
>         Property 27:  load detection       flags: 0x00000002 - DRM_MODE_PROP_RANGE
>         Property 28:  scaling mode         flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 29:  underscan            flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 30:  underscan hborder    flags: 0x00000002 - DRM_MODE_PROP_RANGE
>         Property 31:  underscan vborder    flags: 0x00000002 - DRM_MODE_PROP_RANGE
>         Property 32:  audio                flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 33:  dither               flags: 0x00000008 - DRM_MODE_PROP_ENUM
>
>      Scanning connectors...
>      connector_id:        47
>         connector name       DP-1
>         connector_type:      10 - DP
>         connector_type_id:   1
>         connection:          1 - connected
>         encoder:             46
>            encoder type (signal format): 2 - TDMS
>         EDID property
>            Raw property blob:
>            blob id: 82
>                    +0          +4          +8          +c            0   4   8   c   
>            +0000   00 ff ff ff ff ff ff 00 4c 2d 3d 08 00 00 00 00   ........L-=.....
>            +0010   07 15 01 04 a5 34 20 78 22 9f c1 a6 56 4b 9a 25   .....4 x"...VK.%
>            +0020   13 50 54 bf ef 80 71 4f 81 00 81 40 81 80 01 01   .PT...qO...@....
>            +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>            +0040   35 00 06 44 21 00 00 1a 00 00 00 fd 00 38 4b 1e   5..D!........8K.
>            +0050   5a 20 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53   Z ..      .....S
>            +0060   4d 53 32 37 41 38 35 30 0a 20 20 20 00 00 00 ff   MS27A850.   ....
>            +0070   00 48 31 41 4b 35 30 30 30 30 30 0a 20 20 01 31   .H1AK500000.  .1
>            +0080   02 03 0c c1 23 09 07 07 83 01 00 00 00 00 00 00   ....#...........
>            +0090   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
>            +00a0   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
>            +00b0   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
>            +00c0   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
>            +00d0   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
>            +00e0   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
>            +00f0   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70   ...............p
>            EDID synopsis:
>               Mfg id:           SAM
>               Model:            SMS27A850
>               Serial number:    H1AK500000
>               Manufacture year: 2011
>               EDID version:     1.4
>               Product code:     0x083d (2109)
>               Extra descriptor: Unspecified
>               Video input definition: 0xa5 - Digital Input (DisplayPort)
>               White x,y:        0.312, 0.329
>               Red   x,y:        0.650, 0.337
>               Green x,y:        0.296, 0.604
>               Blue  x,y:        0.147, 0.074
>               Extension blocks: 1
>            EDID source: 
>      connector_id:        49
>         connector name       DP-2
>         connector_type:      10 - DP
>         connector_type_id:   2
>         connection:          1 - connected
>         encoder:             48
>            encoder type (signal format): 2 - TDMS
>         EDID property
>            Blob not found
>      connector_id:        51
>         connector name       HDMI-1
>         connector_type:      11 - HDMI
>         connector_type_id:   1
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        53
>         connector name       DVI-I-1
>         connector_type:      2 - DVI-I
>         connector_type_id:   1
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>
>   Probing device /dev/dri/card1...
>      Open succeeded for device: /dev/dri/card1
>
>      Drm driver version information:
>         Version:     1.6.0
>         Driver:      i915
>         Date:        20170403
>         Description: Intel Graphics
>
>      DRM library version: 1.3.0.
>
>      DRM Busid:  
>
>      Device information:
>         bustype:                0 - pci
>         domain:bus:device.func: 0000:00:02.0
>         vendor    vid:pid:      0x8086:0x0102
>         subvendor vid:pid:      0x1849:0x0102
>         revision id:            0x0009
>
>      Is a modesetting capable driver attached to bus id: pci:0000:00:02.0?
>      (calling drmCheckModesettingAvailable())
>         Yes
>
>      Retrieving DRM resources...
>
>      Scanning defined properties...
>         Property  1:  EDID                 flags: 0x00000014 - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_BLOB
>         Property  2:  DPMS                 flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property  3:  PATH                 flags: 0x00000014 - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_BLOB
>         Property  4:  TILE                 flags: 0x00000014 - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_BLOB
>         Property  5:  link-status          flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property  6:  type                 flags: 0x0000000c - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_ENUM
>         Property  7:  SRC_X                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property  8:  SRC_Y                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property  9:  SRC_W                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 10:  SRC_H                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 11:  CRTC_X               flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 12:  CRTC_Y               flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 13:  CRTC_W               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 14:  CRTC_H               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 15:  FB_ID                flags: 0x80000040 - DRM_MODE_PROP_OBJECT, DRM_MODE_PROP_ATOMIC
>         Property 16:  IN_FENCE_FD          flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 17:  OUT_FENCE_PTR        flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 18:  CRTC_ID              flags: 0x80000040 - DRM_MODE_PROP_OBJECT, DRM_MODE_PROP_ATOMIC
>         Property 19:  ACTIVE               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 20:  MODE_ID              flags: 0x80000010 - DRM_MODE_PROP_BLOB, DRM_MODE_PROP_ATOMIC
>         Property 21:  DEGAMMA_LUT          flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 22:  DEGAMMA_LUT_SIZE     flags: 0x00000006 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_IMMUTABLE
>         Property 23:  CTM                  flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 24:  GAMMA_LUT            flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 25:  GAMMA_LUT_SIZE       flags: 0x00000006 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_IMMUTABLE
>         Property 27:  rotation             flags: 0x00000020 - DRM_MODE_PROP_BITMASK
>         Property 29:  rotation             flags: 0x00000020 - DRM_MODE_PROP_BITMASK
>         Property 31:  rotation             flags: 0x00000020 - DRM_MODE_PROP_BITMASK
>         Property 34:  rotation             flags: 0x00000020 - DRM_MODE_PROP_BITMASK
>         Property 36:  rotation             flags: 0x00000020 - DRM_MODE_PROP_BITMASK
>         Property 38:  rotation             flags: 0x00000020 - DRM_MODE_PROP_BITMASK
>         Property 44:  audio                flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 45:  Broadcast RGB        flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 46:  aspect ratio         flags: 0x00000008 - DRM_MODE_PROP_ENUM
>
>      Scanning connectors...
>      connector_id:        40
>         connector name       VGA-1
>         connector_type:      1 - VGA
>         connector_type_id:   1
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        43
>         connector name       HDMI-2
>         connector_type:      11 - HDMI
>         connector_type_id:   2
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        48
>         connector name       DP-3
>         connector_type:      10 - DP
>         connector_type_id:   3
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        50
>         connector name       HDMI-3
>         connector_type:      11 - HDMI
>         connector_type_id:   3
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        52
>         connector name       HDMI-4
>         connector_type:      11 - HDMI
>         connector_type_id:   4
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        54
>         connector name       DP-4
>         connector_type:      10 - DP
>         connector_type_id:   4
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        56
>         connector name       DP-5
>         connector_type:      10 - DP
>         connector_type_id:   5
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>
>Device Identifier Cross Reference Report
>
>   EDID: ...20200131  Mfg: SAM  Model: SMS27A850      SN: H1AK500000   
>      Bus:           /dev/i2c-8
>      XrandR output: DisplayPort-0
>      DRM connector: DP-1
>      UDEV name:     card0-DP-1
>      UDEV syspath:  /devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-DP-1/i2c-8/i2c-dev/i2c-8
>
>Skipping USB environment exploration.
>Issue command "ddcutil usbenvironment --verbose" if there are any USB attached monitors.
>
>Statistics for environment exploration:
>
>Maximum Try Settings:
>Operation Type             Current  Default
>Write only exchange tries:        4        4
>Write read exchange tries:       15       10
>Multi-part exchange tries:       15        8
>
>Retry statistics for ddc write only
>   No tries attempted
>
>Retry statistics for ddc write/read
>   Max tries allowed: 15
>   Successful attempts by number of tries required:
>       1:    1
>       2:    0
>       3:    0
>       4:    0
>       5:    0
>       6:    0
>       7:    0
>       8:    0
>       9:    0
>      10:    0
>      11:    0
>      12:    0
>      13:    0
>      14:    0
>      15:    0
>   Total:                              1
>   Failed due to max tries exceeded:   0
>   Failed due to fatal error:          0
>   Total attempts:                     1
>
>Retry statistics for multi-part exchange
>   No tries attempted
>
>DDC Related Errors:  None
>Total errors: 0
>
>Errors Wrapped in Retry:  None
>Total errors: 0
>
>Sleep Strategy Stats:
>   Total IO events:        340
>   IO error count:           0
>   Total sleep events:       3
>
>   Sleep Event type      Count
>   SE_WRITE_TO_READ          1
>   SE_POST_OPEN              1
>   SE_POST_WRITE             0
>   SE_POST_READ              1
>   SE_DDC_NULL               0
>   SE_POST_SAVE_SETTINGS     0
>
>Call Stats:
>   Type                                     Count Millisec  (   Nanosec)
>   write calls       (IE_WRITE)                79     1445  (1445704862)
>   read calls        (IE_READ)                 41      729  ( 729366772)
>   open file calls   (IE_OPEN)                 42        0  (    322867)
>   close file calls  (IE_CLOSE)                42        0  (    118550)
>   other I/O calls   (IE_OTHER)               136        0  (    145583)
>   Totals:                                    340     2175  (2175658634)
>
>Sleep Call Stats:
>   Total sleep calls:                                   24
>   Requested sleep time milliseconds :                1200
>   Actual sleep milliseconds (nanosec):               1201  (1201638675)
>
>Total elapsed milliseconds (nanoseconds):            47485  (47485916294)
>
>*** Detected Displays ***
>Display 1
>   I2C bus:             /dev/i2c-8
>   Supports DDC:        true
>      I2C address 0x30 (EDID block#)  present: true 
>      I2C address 0x37 (DDC)          present: true 
>      I2C address 0x50 (EDID)         present: true 
>      /sys/bus/i2c/devices/i2c-8/name: card0-DP-1
>   EDID synopsis:
>      Mfg id:           SAM
>      Model:            SMS27A850
>      Serial number:    H1AK500000
>      Manufacture year: 2011
>      EDID version:     1.4
>      Product code:     0x083d (2109)
>      Extra descriptor: Unspecified
>      Video input definition: 0xa5 - Digital Input (DisplayPort)
>      White x,y:        0.312, 0.329
>      Red   x,y:        0.650, 0.337
>      Green x,y:        0.296, 0.604
>      Blue  x,y:        0.147, 0.074
>      Extension blocks: 1
>   EDID source: 
>   EDID hex dump:
>              +0          +4          +8          +c            0   4   8   c   
>      +0000   00 ff ff ff ff ff ff 00 4c 2d 3d 08 00 00 00 00   ........L-=.....
>      +0010   07 15 01 04 a5 34 20 78 22 9f c1 a6 56 4b 9a 25   .....4 x"...VK.%
>      +0020   13 50 54 bf ef 80 71 4f 81 00 81 40 81 80 01 01   .PT...qO...@....
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 06 44 21 00 00 1a 00 00 00 fd 00 38 4b 1e   5..D!........8K.
>      +0050   5a 20 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53   Z ..      .....S
>      +0060   4d 53 32 37 41 38 35 30 0a 20 20 20 00 00 00 ff   MS27A850.   ....
>      +0070   00 48 31 41 4b 35 30 30 30 30 30 0a 20 20 01 31   .H1AK500000.  .1
>   VCP version:         2.0
>   Controller mfg:      Mstar
>   Firmware version:    0.1
>   Monitor returns DDC Null Response for unsupported features: false
>
>
>Statistics for display detection:
>
>Maximum Try Settings:
>Operation Type             Current  Default
>Write only exchange tries:        4        4
>Write read exchange tries:       15       10
>Multi-part exchange tries:       15        8
>
>Retry statistics for ddc write only
>   No tries attempted
>
>Retry statistics for ddc write/read
>   Max tries allowed: 15
>   Successful attempts by number of tries required:
>       1:    3
>       2:    0
>       3:    0
>       4:    0
>       5:    0
>       6:    0
>       7:    0
>       8:    0
>       9:    0
>      10:    0
>      11:    0
>      12:    0
>      13:    0
>      14:    0
>      15:    0
>   Total:                              3
>   Failed due to max tries exceeded:   0
>   Failed due to fatal error:          0
>   Total attempts:                     3
>
>Retry statistics for multi-part exchange
>   No tries attempted
>
>DDC Related Errors:  None
>Total errors: 0
>
>Errors Wrapped in Retry:  None
>Total errors: 0
>
>Sleep Strategy Stats:
>   Total IO events:         12
>   IO error count:           0
>   Total sleep events:      11
>
>   Sleep Event type      Count
>   SE_WRITE_TO_READ          3
>   SE_POST_OPEN              2
>   SE_POST_WRITE             0
>   SE_POST_READ              3
>   SE_DDC_NULL               0
>   SE_POST_SAVE_SETTINGS     0
>
>Call Stats:
>   Type                                     Count Millisec  (   Nanosec)
>   write calls       (IE_WRITE)                 3        2  (   2083821)
>   read calls        (IE_READ)                  3        3  (   3170898)
>   open file calls   (IE_OPEN)                  2        0  (     16149)
>   close file calls  (IE_CLOSE)                 2        0  (      8703)
>   other I/O calls   (IE_OTHER)                 2        0  (      3048)
>   Totals:                                     12        5  (   5282619)
>
>Sleep Call Stats:
>   Total sleep calls:                                   32
>   Requested sleep time milliseconds :                1600
>   Actual sleep milliseconds (nanosec):               1602  (1602147698)
>
>Elapsed milliseconds since last reset (nanoseconds):   406  ( 406049632)
>Total elapsed milliseconds (nanoseconds):            47891  (47891972206)
>Setting output level normal  Table features will be skipped...
>
>Probing display 1
>
>Mfg id: SAM, model: SMS27A850, sn: H1AK500000
>
>Capabilities for display on bus /dev/i2c-8
>MCCS version: 2.0
>VCP Features:
>  Feature: 04 (Restore factory defaults)
>  Feature: 05 (Restore factory brightness/contrast defaults)
>  Feature: 08 (Restore color defaults)
>  Feature: 10 (Brightness)
>  Feature: 12 (Contrast)
>  Feature: 14 (Select color preset)
>    Values:
>       02: Display Native
>       03: 4000 K
>       0a: 11500 K
>       0b: User 1
>  Feature: 16 (Video gain: Red)
>  Feature: 18 (Video gain: Green)
>  Feature: 1A (Video gain: Blue)
>  Feature: 60 (Input Source)
>    Values:
>       03: DVI-1
>  Feature: 87 (Sharpness)
>  Feature: AA (Screen Orientation)
>    Values:
>       01: 0 degrees
>       02: 90 degrees
>       03: 180 degrees
>       ff: Display cannot supply orientation
>  Feature: B0 (Settings)
>    Values: 01 02 (interpretation unavailable)
>  Feature: B6 (Display technology type)
>  Feature: C6 (Application enable key)
>  Feature: C8 (Display controller type)
>  Feature: C9 (Display firmware level)
>  Feature: D6 (Power mode)
>    Values:
>       01: DPM: On,  DPMS: Off
>       04: DPM: Off, DPMS: Off
>  Feature: DC (Display Mode)
>    Values:
>       01: Productivity
>       02: Mixed
>       03: Movie
>       04: User defined
>       05: Games
>       06: Sports
>       f0: Dynamic contrast
>       f2: Unrecognized value
>       f9: Unrecognized value
>       fa: Unrecognized value
>  Feature: DB (Image Mode)
>    Values:
>       00: No effect
>       04: Variable
>       fd: Unrecognized value
>       fe: Unrecognized value
>  Feature: DF (VCP Version)
>  Feature: E8 (manufacturer specific feature)
>    Values: 00 01 06 07 fe (interpretation unavailable)
>  Feature: E9 (manufacturer specific feature)
>  Feature: EA (manufacturer specific feature)
>    Values: 00 01 02 03 04 (interpretation unavailable)
>  Feature: EB (manufacturer specific feature)
>    Values: 00 02 09 fd (interpretation unavailable)
>  Feature: F2 (manufacturer specific feature)
>  Feature: F6 (manufacturer specific feature)
>  Feature: F7 (manufacturer specific feature)
>    Values: 00 01 02 03 (interpretation unavailable)
>
>May support table reads:   true
>
>Scanning all VCP feature codes for display Display_Handle[i2c: fh=3, busno=8]
>VCP code 0x00 (Unknown feature               ): Unsupported feature code
>VCP code 0x01 (Degauss                       ): Write-only feature
>VCP code 0x02 (New control value             ): No new control values (0x01)
>VCP code 0x03 (Soft controls                 ): Unsupported feature code
>VCP code 0x04 (Restore factory defaults      ): Write-only feature
>VCP code 0x05 (Restore factory brightness/contrast defaults): Write-only feature
>VCP code 0x06 (Restore factory geometry defaults): Write-only feature
>VCP code 0x07 (Unknown feature               ): Unsupported feature code
>VCP code 0x08 (Restore color defaults        ): Write-only feature
>VCP code 0x09 (Unknown feature               ): Unsupported feature code
>VCP code 0x0a (Restore factory TV defaults   ): Write-only feature
>VCP code 0x0b (Color temperature increment   ): Unsupported feature code
>VCP code 0x0c (Color temperature request     ): Unsupported feature code
>VCP code 0x0d (Unknown feature               ): Unsupported feature code
>VCP code 0x0e (Clock                         ): current value =    80, max value =     0
>VCP code 0x0f (Unknown feature               ): Unsupported feature code
>VCP code 0x10 (Brightness                    ): current value =   100, max value =   100
>VCP code 0x11 (Flesh tone enhancement        ): Unsupported feature code
>VCP code 0x12 (Contrast                      ): current value =    75, max value =   100
>VCP code 0x13 (Backlight control             ): Unsupported feature code
>VCP code 0x14 (Select color preset           ): User 1 (sl=0x0b)
>VCP code 0x15 (Unknown feature               ): Unsupported feature code
>VCP code 0x16 (Video gain: Red               ): current value =    28, max value =    64
>VCP code 0x17 (User color vision compensation): Unsupported feature code
>VCP code 0x18 (Video gain: Green             ): current value =    31, max value =    64
>VCP code 0x19 (Unknown feature               ): Unsupported feature code
>VCP code 0x1a (Video gain: Blue              ): current value =    29, max value =    64
>VCP code 0x1b (Unknown feature               ): Unsupported feature code
>VCP code 0x1c (Focus                         ): Unsupported feature code
>VCP code 0x1d (Unknown feature               ): Unsupported feature code
>VCP code 0x1e (Auto setup                    ): Auto setup not active (sl=0x00)
>VCP code 0x1f (Auto color setup              ): Unsupported feature code
>VCP code 0x20 (Horizontal Position           ): current value =     0, max value =     0
>VCP code 0x21 (Unknown feature               ): Unsupported feature code
>VCP code 0x22 (Horizontal Size               ): Unsupported feature code
>VCP code 0x23 (Unknown feature               ): Unsupported feature code
>VCP code 0x24 (Horizontal Pincushion         ): Unsupported feature code
>VCP code 0x25 (Unknown feature               ): Unsupported feature code
>VCP code 0x26 (Horizontal Pincushion Balance ): Unsupported feature code
>VCP code 0x27 (Unknown feature               ): Unsupported feature code
>VCP code 0x28 (Horizontal Convergence        ): Unsupported feature code
>VCP code 0x29 (Horizontal Convergence M/G    ): Unsupported feature code
>VCP code 0x2a (Horizontal Linearity          ): Unsupported feature code
>VCP code 0x2b (Unknown feature               ): Unsupported feature code
>VCP code 0x2c (Horizontal Linearity Balance  ): Unsupported feature code
>VCP code 0x2d (Unknown feature               ): Unsupported feature code
>VCP code 0x2e (Gray scale expansion          ): Unsupported feature code
>VCP code 0x2f (Unknown feature               ): Unsupported feature code
>VCP code 0x30 (Vertical Position             ): current value =     0, max value =     0
>VCP code 0x31 (Unknown feature               ): Unsupported feature code
>VCP code 0x32 (Vertical Size                 ): Unsupported feature code
>VCP code 0x33 (Unknown feature               ): Unsupported feature code
>VCP code 0x34 (Vertical Pincushion           ): Unsupported feature code
>VCP code 0x35 (Unknown feature               ): Unsupported feature code
>VCP code 0x36 (Vertical Pincushion Balance   ): Unsupported feature code
>VCP code 0x37 (Unknown feature               ): Unsupported feature code
>VCP code 0x38 (Vertical Convergence          ): Unsupported feature code
>VCP code 0x39 (Vertical Convergence M/G      ): Unsupported feature code
>VCP code 0x3a (Vertical Linearity            ): Unsupported feature code
>VCP code 0x3b (Unknown feature               ): Unsupported feature code
>VCP code 0x3c (Vertical Linearity Balance    ): Unsupported feature code
>VCP code 0x3d (Unknown feature               ): Unsupported feature code
>VCP code 0x3e (Clock phase                   ): current value =     0, max value =    31
>VCP code 0x3f (Unknown feature               ): Unsupported feature code
>VCP code 0x40 (Key Balance                   ): Unsupported feature code
>VCP code 0x41 (Vertical Parallelogram        ): Unsupported feature code
>VCP code 0x42 (Horizontal Trapezoid          ): Unsupported feature code
>VCP code 0x43 (Vertical Trapezoid            ): Unsupported feature code
>VCP code 0x44 (Tilt (rotation)               ): Unsupported feature code
>VCP code 0x45 (Unknown feature               ): Unsupported feature code
>VCP code 0x46 (Top Corner                    ): Unsupported feature code
>VCP code 0x47 (Unknown feature               ): Unsupported feature code
>VCP code 0x48 (Top Corner Balance            ): Unsupported feature code
>VCP code 0x49 (Unknown feature               ): Unsupported feature code
>VCP code 0x4a (Bottom Corner                 ): Unsupported feature code
>VCP code 0x4b (Unknown feature               ): Unsupported feature code
>VCP code 0x4c (Bottom Corner Balance         ): Unsupported feature code
>VCP code 0x4d (Unknown feature               ): Unsupported feature code
>VCP code 0x4e (Unknown feature               ): Unsupported feature code
>VCP code 0x4f (Unknown feature               ): Unsupported feature code
>VCP code 0x50 (Unknown feature               ): Unsupported feature code
>VCP code 0x51 (Unknown feature               ): Unsupported feature code
>VCP code 0x52 (Active control                ): Unsupported feature code
>VCP code 0x53 (Unknown feature               ): Unsupported feature code
>VCP code 0x54 (Performance Preservation      ): mh=0x00, ml=0x02, sh=0x00, sl=0x00
>VCP code 0x55 (Unknown feature               ): Unsupported feature code
>VCP code 0x56 (Horizontal Moire              ): Unsupported feature code
>VCP code 0x57 (Unknown feature               ): Unsupported feature code
>VCP code 0x58 (Vertical Moire                ): Unsupported feature code
>VCP code 0x59 (6 axis saturation: Red        ): Unsupported feature code
>VCP code 0x5a (6 axis saturation: Yellow     ): Unsupported feature code
>VCP code 0x5b (6 axis saturation: Green      ): Unsupported feature code
>VCP code 0x5c (6 axis saturation: Cyan       ): Unsupported feature code
>VCP code 0x5d (6 axis saturation: Blue       ): Unsupported feature code
>VCP code 0x5e (6 axis saturation: Magenta    ): Unsupported feature code
>VCP code 0x5f (Unknown feature               ): Unsupported feature code
>VCP code 0x60 (Input Source                  ): VGA-1 (sl=0x01)
>VCP code 0x61 (Unknown feature               ): Unsupported feature code
>VCP code 0x62 (Audio speaker volume          ): current value =   100, max value =   100
>VCP code 0x63 (Speaker Select                ): Unsupported feature code
>VCP code 0x64 (Audio: Microphone Volume      ): Unsupported feature code
>VCP code 0x65 (Unknown feature               ): Unsupported feature code
>VCP code 0x66 (Ambient light sensor          ): Unsupported feature code
>VCP code 0x67 (Unknown feature               ): Unsupported feature code
>VCP code 0x68 (Unknown feature               ): Unsupported feature code
>VCP code 0x69 (Unknown feature               ): Unsupported feature code
>VCP code 0x6a (Unknown feature               ): Unsupported feature code
>VCP code 0x6b (Backlight Level: White        ): Unsupported feature code
>VCP code 0x6c (Video black level: Red        ): current value =   128, max value =   255
>VCP code 0x6d (Backlight Level: Red          ): Unsupported feature code
>VCP code 0x6e (Video black level: Green      ): current value =   128, max value =   255
>VCP code 0x6f (Backlight Level: Green        ): Unsupported feature code
>VCP code 0x70 (Video black level: Blue       ): current value =   128, max value =   255
>VCP code 0x71 (Backlight Level: Blue         ): Unsupported feature code
>VCP code 0x72 (Gamma                         ): Unsupported feature code
>VCP code 0x76 (Remote Procedure Call         ): Write-only feature
>VCP code 0x77 (Unknown feature               ): Unsupported feature code
>VCP code 0x79 (Unknown feature               ): Unsupported feature code
>VCP code 0x7a (Adjust Focal Plane            ): Unsupported feature code
>VCP code 0x7b (Unknown feature               ): Unsupported feature code
>VCP code 0x7c (Adjust Zoom                   ): Unsupported feature code
>VCP code 0x7d (Unknown feature               ): Unsupported feature code
>VCP code 0x7e (Trapezoid                     ): Unsupported feature code
>VCP code 0x7f (Unknown feature               ): Unsupported feature code
>VCP code 0x80 (Keystone                      ): Unsupported feature code
>VCP code 0x81 (Unknown feature               ): Unsupported feature code
>VCP code 0x82 (HorFlip                       ): Write-only feature
>VCP code 0x83 (Unknown feature               ): Unsupported feature code
>VCP code 0x84 (VertFlip                      ): Write-only feature
>VCP code 0x85 (Unknown feature               ): Unsupported feature code
>VCP code 0x86 (Display Scaling               ): Unsupported feature code
>VCP code 0x87 (Sharpness                     ): Invalid value (sl=0x10)
>VCP code 0x88 (Velocity Scan Modulation      ): Unsupported feature code
>VCP code 0x89 (Unknown feature               ): Unsupported feature code
>VCP code 0x8a (TV Color Saturation           ): Unsupported feature code
>VCP code 0x8b (TV Channel Up/Down            ): Write-only feature
>VCP code 0x8c (TV Sharpness                  ): Unsupported feature code
>VCP code 0x8d (Audio Mute                    ): Unsupported feature code
>VCP code 0x8e (TV Contrast                   ): Unsupported feature code
>VCP code 0x8f (Audio Treble                  ): Unsupported feature code
>VCP code 0x90 (Hue                           ): Unsupported feature code
>VCP code 0x91 (Audio Bass                    ): Unsupported feature code
>VCP code 0x92 (TV Black level/Brightness     ): Unsupported feature code
>VCP code 0x93 (Audio Balance L/R             ): Unsupported feature code
>VCP code 0x94 (Audio Stereo Mode             ): Unsupported feature code
>VCP code 0x95 (Window Position(TL_X)         ): Unsupported feature code
>VCP code 0x96 (Window Position(TL_Y)         ): Unsupported feature code
>VCP code 0x97 (Window Position(BR_X)         ): Unsupported feature code
>VCP code 0x98 (Window Position(BR_Y)         ): Unsupported feature code
>VCP code 0x99 (Window control on/off         ): Unsupported feature code
>VCP code 0x9a (Window background             ): Unsupported feature code
>VCP code 0x9b (6 axis hue control: Red       ): Unsupported feature code
>VCP code 0x9c (6 axis hue control: Yellow    ): Unsupported feature code
>VCP code 0x9d (6 axis hue control: Green     ): Unsupported feature code
>VCP code 0x9e (6 axis hue control: Cyan      ): Unsupported feature code
>VCP code 0x9f (6 axis hue control: Blue      ): Unsupported feature code
>VCP code 0xa0 (6 axis hue control: Magenta   ): Unsupported feature code
>VCP code 0xa1 (Unknown feature               ): Unsupported feature code
>VCP code 0xa2 (Auto setup on/off             ): Write-only feature
>VCP code 0xa3 (Unknown feature               ): Unsupported feature code
>VCP code 0xa4 (Turn the selected window operation on/off): Unsupported feature code
>VCP code 0xa5 (Change the selected window    ): Unsupported feature code
>VCP code 0xa6 (Unknown feature               ): Unsupported feature code
>VCP code 0xa7 (Unknown feature               ): Unsupported feature code
>VCP code 0xa8 (Unknown feature               ): Unsupported feature code
>VCP code 0xa9 (Unknown feature               ): Unsupported feature code
>VCP code 0xaa (Screen Orientation            ): 0 degrees (sl=0x01)
>VCP code 0xab (Unknown feature               ): Unsupported feature code
>VCP code 0xac (Horizontal frequency          ): Unsupported feature code
>VCP code 0xad (Unknown feature               ): Unsupported feature code
>VCP code 0xae (Vertical frequency            ): Unsupported feature code
>VCP code 0xaf (Unknown feature               ): Unsupported feature code
>VCP code 0xb0 (Settings                      ): Write-only feature
>VCP code 0xb1 (Unknown feature               ): Unsupported feature code
>VCP code 0xb2 (Flat panel sub-pixel layout   ): Unsupported feature code
>VCP code 0xb3 (Unknown feature               ): Unsupported feature code
>VCP code 0xb4 (Source Timing Mode            ): Unsupported feature code
>VCP code 0xb5 (Unknown feature               ): Unsupported feature code
>VCP code 0xb6 (Display technology type       ): LCD (active matrix) (sl=0x03)
>VCP code 0xb7 (Monitor status                ): Unsupported feature code
>VCP code 0xb8 (Packet count                  ): Unsupported feature code
>VCP code 0xb9 (Monitor X origin              ): Unsupported feature code
>VCP code 0xba (Monitor Y origin              ): Unsupported feature code
>VCP code 0xbb (Header error count            ): Unsupported feature code
>VCP code 0xbc (Body CRC error count          ): Unsupported feature code
>VCP code 0xbd (Client ID                     ): Unsupported feature code
>VCP code 0xbe (Link control                  ): Unsupported feature code
>VCP code 0xbf (Unknown feature               ): Unsupported feature code
>VCP code 0xc0 (Display usage time            ): Unsupported feature code
>VCP code 0xc1 (Unknown feature               ): Unsupported feature code
>VCP code 0xc2 (Display descriptor length     ): Unsupported feature code
>VCP code 0xc4 (Enable display of 'display descriptor'): Unsupported feature code
>VCP code 0xc5 (Unknown feature               ): Unsupported feature code
>VCP code 0xc6 (Application enable key        ): 0x0001
>VCP code 0xc7 (Unknown feature               ): Unsupported feature code
>VCP code 0xc8 (Display controller type       ): Mfg: Mstar (sl=0x05), controller number: mh=0x00, ml=0x10, sh=0x00
>VCP code 0xc9 (Display firmware level        ): 0.1
>VCP code 0xca (OSD                           ): OSD Enabled (sl=0x02)
>VCP code 0xcb (Unknown feature               ): Unsupported feature code
>VCP code 0xcc (OSD Language                  ): English (sl=0x02)
>VCP code 0xcd (Status Indicators             ): Unsupported feature code
>VCP code 0xce (Auxiliary display size        ): Unsupported feature code
>VCP code 0xcf (Auxiliary display data        ): Write-only feature
>VCP code 0xd0 (Output select                 ): Unsupported feature code
>VCP code 0xd1 (Unknown feature               ): Unsupported feature code
>VCP code 0xd3 (Unknown feature               ): Unsupported feature code
>VCP code 0xd4 (Stereo video mode             ): Unsupported feature code
>VCP code 0xd5 (Unknown feature               ): Unsupported feature code
>VCP code 0xd6 (Power mode                    ): DPM: On,  DPMS: Off (sl=0x01)
>VCP code 0xd7 (Auxiliary power output        ): Unsupported feature code
>VCP code 0xd8 (Unknown feature               ): Unsupported feature code
>VCP code 0xd9 (Unknown feature               ): Unsupported feature code
>VCP code 0xda (Scan format                   ): Unsupported feature code
>VCP code 0xdb (Image Mode                    ): Variable (sl=0x04)
>VCP code 0xdc (Display Mode                  ): Sports (sl=0x06)
>VCP code 0xdd (Unknown feature               ): Unsupported feature code
>VCP code 0xde (Operation Mode                ): Write-only feature
>VCP code 0xdf (VCP Version                   ): 2.0
>VCP code 0xe0 (Manufacturer Specific         ): mh=0x02, ml=0x05, sh=0x00, sl=0x0b, max value =   517, cur value =    11
>VCP code 0xe1 (Manufacturer Specific         ): mh=0x00, ml=0x01, sh=0x00, sl=0x01, max value =     1, cur value =     1
>VCP code 0xe2 (Manufacturer Specific         ): mh=0x00, ml=0x01, sh=0x00, sl=0x00, max value =     1, cur value =     0
>VCP code 0xe3 (Manufacturer Specific         ): mh=0x00, ml=0x01, sh=0x00, sl=0x00, max value =     1, cur value =     0
>VCP code 0xe4 (Manufacturer Specific         ): mh=0x00, ml=0x02, sh=0x00, sl=0x00, max value =     2, cur value =     0
>VCP code 0xe5 (Manufacturer Specific         ): mh=0x00, ml=0x01, sh=0x00, sl=0x00, max value =     1, cur value =     0
>VCP code 0xe6 (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xe7 (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xe8 (Manufacturer Specific         ): mh=0x00, ml=0x07, sh=0x00, sl=0x00, max value =     7, cur value =     0
>VCP code 0xe9 (Manufacturer Specific         ): mh=0x00, ml=0x01, sh=0x00, sl=0x00, max value =     1, cur value =     0
>VCP code 0xea (Manufacturer Specific         ): mh=0x00, ml=0x04, sh=0x00, sl=0x00, max value =     4, cur value =     0
>VCP code 0xeb (Manufacturer Specific         ): mh=0x00, ml=0x09, sh=0x00, sl=0xfd, max value =     9, cur value =   253
>VCP code 0xec (Manufacturer Specific         ): mh=0x00, ml=0x06, sh=0x00, sl=0x00, max value =     6, cur value =     0
>VCP code 0xed (Manufacturer Specific         ): mh=0x00, ml=0xff, sh=0x00, sl=0x80, max value =   255, cur value =   128
>VCP code 0xee (Manufacturer Specific         ): mh=0x00, ml=0xff, sh=0x00, sl=0x80, max value =   255, cur value =   128
>VCP code 0xef (Manufacturer Specific         ): mh=0x00, ml=0xff, sh=0x00, sl=0x80, max value =   255, cur value =   128
>VCP code 0xf0 (Manufacturer Specific         ): mh=0x00, ml=0x03, sh=0x00, sl=0x00, max value =     3, cur value =     0
>VCP code 0xf1 (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xf2 (Manufacturer Specific         ): mh=0x00, ml=0x02, sh=0x00, sl=0x00, max value =     2, cur value =     0
>VCP code 0xf3 (Manufacturer Specific         ): mh=0x00, ml=0x02, sh=0x00, sl=0x00, max value =     2, cur value =     0
>VCP code 0xf4 (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xf5 (Manufacturer Specific         ): mh=0x00, ml=0x02, sh=0xff, sl=0x00, max value =     2, cur value = 65280
>VCP code 0xf6 (Manufacturer Specific         ): mh=0x00, ml=0x02, sh=0x00, sl=0x01, max value =     2, cur value =     1
>VCP code 0xf7 (Manufacturer Specific         ): mh=0x00, ml=0x03, sh=0x00, sl=0x00, max value =     3, cur value =     0
>VCP code 0xf8 (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xf9 (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xfa (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xfb (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xfc (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xfd (Manufacturer Specific         ): Unsupported feature code
>VCP code 0xfe (Manufacturer Specific         ): mh=0x00, ml=0x02, sh=0x00, sl=0x02, max value =     2, cur value =     2
>VCP code 0xff (Manufacturer Specific         ): Unsupported feature code
>
>
>Comparing declared capabilities to observed features...
>
>Readable features declared in capabilities string: 10 12 14 16 18 1a 60 87 aa b6 c6 c8 c9 d6 db dc df e8 e9 ea eb f2 f6 f7
>
>MCCS (VCP) version reported by capabilities: 2.0
>MCCS (VCP) version reported by feature 0xDf: 2.0
>
>All readable features declared in capabilities were found by scanning.
>
>Features found by scanning but not declared as capabilities:
>   Feature x02 - New control value
>   Feature x0e - Clock
>   Feature x1e - Auto setup
>   Feature x20 - Horizontal Position
>   Feature x30 - Vertical Position
>   Feature x3e - Clock phase
>   Feature x54 - Performance Preservation
>   Feature x62 - Audio speaker volume
>   Feature x6c - Video black level: Red
>   Feature x6e - Video black level: Green
>   Feature x70 - Video black level: Blue
>   Feature xca - OSD
>   Feature xcc - OSD Language
>   Feature xe0 - Manufacturer Specific
>   Feature xe1 - Manufacturer Specific
>   Feature xe2 - Manufacturer Specific
>   Feature xe3 - Manufacturer Specific
>   Feature xe4 - Manufacturer Specific
>   Feature xe5 - Manufacturer Specific
>   Feature xec - Manufacturer Specific
>   Feature xed - Manufacturer Specific
>   Feature xee - Manufacturer Specific
>   Feature xef - Manufacturer Specific
>   Feature xf0 - Manufacturer Specific
>   Feature xf3 - Manufacturer Specific
>   Feature xf5 - Manufacturer Specific
>   Feature xfe - Manufacturer Specific
>
>Unable to calculate color temperature from VCP features x0B and x0C
>
>Statistics for probe of display 1:
>
>Maximum Try Settings:
>Operation Type             Current  Default
>Write only exchange tries:        4        4
>Write read exchange tries:       15       10
>Multi-part exchange tries:       15        8
>
>Retry statistics for ddc write only
>   No tries attempted
>
>Retry statistics for ddc write/read
>   Max tries allowed: 15
>   Successful attempts by number of tries required:
>       1:  249
>       2:    0
>       3:    0
>       4:    0
>       5:    0
>       6:    0
>       7:    0
>       8:    0
>       9:    0
>      10:    0
>      11:    0
>      12:    0
>      13:    0
>      14:    0
>      15:    0
>   Total:                            249
>   Failed due to max tries exceeded:   0
>   Failed due to fatal error:          0
>   Total attempts:                   249
>
>Retry statistics for multi-part exchange
>   Max tries allowed: 15
>   Successful attempts by number of tries required:
>       1:    1
>       2:    0
>       3:    0
>       4:    0
>       5:    0
>       6:    0
>       7:    0
>       8:    0
>       9:    0
>      10:    0
>      11:    0
>      12:    0
>      13:    0
>      14:    0
>      15:    0
>   Total:                              1
>   Failed due to max tries exceeded:   0
>   Failed due to fatal error:          0
>   Total attempts:                     1
>
>DDC Related Errors:  None
>Total errors: 0
>
>Errors Wrapped in Retry:  None
>Total errors: 0
>
>Sleep Strategy Stats:
>   Total IO events:        501
>   IO error count:           0
>   Total sleep events:     510
>
>   Sleep Event type      Count
>   SE_WRITE_TO_READ        249
>   SE_POST_OPEN              1
>   SE_POST_WRITE             0
>   SE_POST_READ            249
>   SE_DDC_NULL               0
>   SE_POST_SAVE_SETTINGS     0
>
>Call Stats:
>   Type                                     Count Millisec  (   Nanosec)
>   write calls       (IE_WRITE)               249      177  ( 177309590)
>   read calls        (IE_READ)                249      269  ( 269361769)
>   open file calls   (IE_OPEN)                  1        0  (     12265)
>   close file calls  (IE_CLOSE)                 1        0  (      5430)
>   other I/O calls   (IE_OTHER)                 1        0  (      2224)
>   Totals:                                    501      446  ( 446691278)
>
>Sleep Call Stats:
>   Total sleep calls:                                  531
>   Requested sleep time milliseconds :               26550
>   Actual sleep milliseconds (nanosec):              26585  (26585638048)
>
>Elapsed milliseconds since last reset (nanoseconds): 25437  (25437908398)
>Total elapsed milliseconds (nanoseconds):            73329  (73329884166)
>
>Display scanning complete.

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Attachments on bug 102069: 133284 | 133285 | 133286 | 133297 | 133301

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