Attachment 133286 Details for Bug 102069 – ddcutil interrogate on gtx980 (ubuntu 17.04 live)

ddcutil interrogate on gtx980 (ubuntu 17.04 live)

gtx980-interrogate.txt (text/plain), 151.87 KB, created by Gerben Meijer on 2017-08-07 12:44:18 UTC

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Creator: Gerben Meijer

Created: 2017-08-07 12:44:18 UTC

Size: 151.87 KB

patch

obsolete

>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 4.10.0-19-generic (buildd@lcy01-13) (gcc version 6.3.0 20170321 (Ubuntu 6.3.0-10ubuntu1) ) #21-Ubuntu SMP Thu Apr 6 17:04:57 UTC 2017
>
>/etc/os-release...
>   PRETTY_NAME="Ubuntu 17.04"
>
>/proc/cmdline:
>   BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
>
>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) i7-2600K CPU @ 3.40GHz
>   Stepping:              7
>   CPU MHz:               1599.975
>   CPU max MHz:           4200.0000
>   CPU min MHz:           1600.0000
>   BogoMIPS:              6784.25
>   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 aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 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:       ASUSTeK COMPUTER INC.
>   Motherboard product name: Z77-A
>   System vendor:            System manufacturer
>   System product name:      System Product Name
>   Chassis vendor:           Chassis Manufacture
>   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:    nouveau
>   Unable to determine driver version
>
>Video card identification:
>   Vendor:              10de       NVIDIA Corporation
>   Device:              13c0       GM204 [GeForce GTX 980]
>   Subvendor/Subdevice: 1462/3170  Micro-Star International Co., Ltd. [MSI]
>
>*** 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 16:00 /dev/i2c-0
>   crw-rw---- 1 root i2c 89,  1 Aug  5 16:00 /dev/i2c-1
>   crw-rw---- 1 root i2c 89, 10 Aug  5 16:00 /dev/i2c-10
>   crw-rw---- 1 root i2c 89, 11 Aug  5 16:00 /dev/i2c-11
>   crw-rw---- 1 root i2c 89, 12 Aug  5 16:00 /dev/i2c-12
>   crw-rw---- 1 root i2c 89, 13 Aug  5 16:00 /dev/i2c-13
>   crw-rw---- 1 root i2c 89, 14 Aug  5 16:00 /dev/i2c-14
>   crw-rw---- 1 root i2c 89, 15 Aug  5 16:00 /dev/i2c-15
>   crw-rw---- 1 root i2c 89, 16 Aug  5 16:00 /dev/i2c-16
>   crw-rw---- 1 root i2c 89, 17 Aug  5 16:00 /dev/i2c-17
>   crw-rw---- 1 root i2c 89, 18 Aug  5 16:00 /dev/i2c-18
>   crw-rw---- 1 root i2c 89, 19 Aug  5 16:00 /dev/i2c-19
>   crw-rw---- 1 root i2c 89,  2 Aug  5 16:00 /dev/i2c-2
>   crw-rw---- 1 root i2c 89,  3 Aug  5 16:00 /dev/i2c-3
>   crw-rw---- 1 root i2c 89,  4 Aug  5 16:00 /dev/i2c-4
>   crw-rw---- 1 root i2c 89,  5 Aug  5 16:00 /dev/i2c-5
>   crw-rw---- 1 root i2c 89,  6 Aug  5 16:00 /dev/i2c-6
>   crw-rw---- 1 root i2c 89,  7 Aug  5 16:00 /dev/i2c-7
>   crw-rw---- 1 root i2c 89,  8 Aug  5 16:00 /dev/i2c-8
>   crw-rw---- 1 root i2c 89,  9 Aug  5 16:00 /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-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
>   grep: /etc/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: videobuf2_vmalloc
>   Found other loaded module: videobuf2_memops
>   Found other loaded module: videobuf2_v4l2
>   Found other loaded module: videobuf2_core
>   Found other loaded module: videodev
>   Found video driver module: nouveau
>   Found other loaded module: i2c_algo_bit
>   Found other loaded module: drm_kms_helper
>   Loaded drm module depends on: nouveau,ttm,drm_kms_helper,
>   Loaded video module depends on: asus_wmi,nouveau,
>
>Using lspci to examine driver environment...
>Video controller:  NVIDIA Corporation GM204 [GeForce GTX 980] (rev a1)
>
>
>Testing if modules are loaded using /sys...
>   Module amdgpu           is NOT loaded
>   Module fglrx            is NOT loaded
>   Module i915             is NOT loaded
>   Module nvidia           is NOT loaded
>   Module nouveau          is 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: nvkm-0000:01:00.0-bus-0009
>   /sys/bus/i2c/devices/i2c-3/name: nvkm-0000:01:00.0-bus-0003
>   /sys/bus/i2c/devices/i2c-13/name: nvkm-0000:01:00.0-bus-0008
>   /sys/bus/i2c/devices/i2c-1/name: nvkm-0000:01:00.0-bus-0001
>   /sys/bus/i2c/devices/i2c-11/name: nvkm-0000:01:00.0-bus-0007
>   /sys/bus/i2c/devices/i2c-8/name: nvkm-0000:01:00.0-aux-0005
>   /sys/bus/i2c/devices/i2c-18/name: 0000:01:00.0
>   /sys/bus/i2c/devices/i2c-6/name: nvkm-0000:01:00.0-aux-0004
>   /sys/bus/i2c/devices/i2c-16/name: nvkm-0000:01:00.0-aux-0009
>   /sys/bus/i2c/devices/i2c-4/name: nvkm-0000:01:00.0-aux-0003
>   /sys/bus/i2c/devices/i2c-14/name: nvkm-0000:01:00.0-aux-0008
>   /sys/bus/i2c/devices/i2c-2/name: nvkm-0000:01:00.0-bus-0002
>   /sys/bus/i2c/devices/i2c-12/name: nvkm-0000:01:00.0-aux-0007
>   /sys/bus/i2c/devices/i2c-0/name: nvkm-0000:01:00.0-bus-0000
>   /sys/bus/i2c/devices/i2c-9/name: nvkm-0000:01:00.0-bus-0006
>   /sys/bus/i2c/devices/i2c-10/name: nvkm-0000:01:00.0-aux-0006
>   /sys/bus/i2c/devices/i2c-19/name: 0000:01:00.0
>   /sys/bus/i2c/devices/i2c-7/name: nvkm-0000:01:00.0-bus-0005
>   /sys/bus/i2c/devices/i2c-17/name: 0000:01:00.0
>   /sys/bus/i2c/devices/i2c-5/name: nvkm-0000:01:00.0-bus-0004
>
>
>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_SMBUS_PEC, 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_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_SMBUS_PEC, 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_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:    false
>   Address 0x37 present:    false
>   Address 0x50 present:    false
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>
>   Bus /dev/i2c-9 found:    true
>   Bus /dev/i2c-9 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-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_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_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_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-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_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_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_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-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_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_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_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-16 found:    true
>   Bus /dev/i2c-16 probed:   true
>   Address 0x30 present:    true
>   Address 0x37 present:    true
>   Address 0x50 present:    true
>   Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_WRITE_BLOCK_DATA, 
>                  I2C_FUNC_SMBUS_READ_I2C_BLOCK, 
>                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
>   EDID synopsis:
>      Mfg id:           ACR
>      Model:            XB270HU
>      Serial number:    #ASOQgqYB8LDd
>      Model year      : 2013
>      EDID version:     1.4
>      Product code:     0x0408 (1032)
>      Extra descriptor: Unspecified
>      Video input definition: 0xa5 - Digital Input (DisplayPort)
>      White x,y:        0.312, 0.329
>      Red   x,y:        0.640, 0.330
>      Green x,y:        0.300, 0.600
>      Blue  x,y:        0.150, 0.060
>      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 04 72 08 04 ff ff ff ff   .........r......
>      +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>      +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>      +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>      +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>      +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>
>   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
>
>   Bus /dev/i2c-19 found:    true
>   Bus /dev/i2c-19 probed:   true
>   Address 0x30 present:    true
>   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
>   EDID synopsis:
>      Mfg id:           ACR
>      Model:            XB270HU
>      Serial number:    #ASOQgqYB8LDd
>      Model year      : 2013
>      EDID version:     1.4
>      Product code:     0x0408 (1032)
>      Extra descriptor: Unspecified
>      Video input definition: 0xa5 - Digital Input (DisplayPort)
>      White x,y:        0.312, 0.329
>      Red   x,y:        0.640, 0.330
>      Green x,y:        0.300, 0.600
>      Blue  x,y:        0.150, 0.060
>      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 04 72 08 04 ff ff ff ff   .........r......
>      +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>      +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>      +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>      +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>      +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>
>xrandr connection report:
>   DVI-I-1 disconnected (normal left inverted right x axis y axis)
>   DP-1 disconnected (normal left inverted right x axis y axis)
>   DP-2 disconnected (normal left inverted right x axis y axis)
>   DP-3 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 598mm x 336mm
>   HDMI-1 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2e -- 
>      30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      50: -- -- -- -- -- -- 56 -- -- -- -- -- -- -- -- -- 
>      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: 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:          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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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-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:          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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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-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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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:          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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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-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:          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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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-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:          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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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-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:          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-17 using command "i2cdetect -y 17"
>           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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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-18 using command "i2cdetect -y 18"
>           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: -- -- -- -- -- -- -- -- 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: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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-19 using command "i2cdetect -y 19"
>           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 -- -- -- -- -- -- -- 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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
>      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                         
>
>Performing basic scan of I2C devices using local sysenv functions...
>
>   Examining device /dev/i2c-0...
>      Device name (/sys/bus/i2c/devices/i2c-0/name): nvkm-0000:01:00.0-bus-0000
>      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): nvkm-0000:01:00.0-bus-0001
>      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): nvkm-0000:01:00.0-bus-0002
>      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): nvkm-0000:01:00.0-bus-0003
>      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): nvkm-0000:01:00.0-aux-0003
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_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): nvkm-0000:01:00.0-bus-0004
>      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): nvkm-0000:01:00.0-aux-0004
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_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): nvkm-0000:01:00.0-bus-0005
>      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): nvkm-0000:01:00.0-aux-0005
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_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-9...
>      Device name (/sys/bus/i2c/devices/i2c-9/name): nvkm-0000:01:00.0-bus-0006
>      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-10...
>      Device name (/sys/bus/i2c/devices/i2c-10/name): nvkm-0000:01:00.0-aux-0006
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_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): nvkm-0000:01:00.0-bus-0007
>      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-12...
>      Device name (/sys/bus/i2c/devices/i2c-12/name): nvkm-0000:01:00.0-aux-0007
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_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): nvkm-0000:01:00.0-bus-0008
>      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-14...
>      Device name (/sys/bus/i2c/devices/i2c-14/name): nvkm-0000:01:00.0-aux-0008
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_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): nvkm-0000:01:00.0-bus-0009
>      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=EBUSY(-16): Device or resource busy
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: EBUSY(-16): Device or resource busy
>      DDC communication failed.
>
>   Examining device /dev/i2c-16...
>      Device name (/sys/bus/i2c/devices/i2c-16/name): nvkm-0000:01:00.0-aux-0009
>      Functionality: I2C_FUNC_I2C, I2C_FUNC_SMBUS_PEC, 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_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 04 72 08 04 ff ff ff ff   .........r......
>      +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>      +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>      +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>      +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>      +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>      EDID synopsis:
>         Mfg id:           ACR
>         Model:            XB270HU
>         Serial number:    #ASOQgqYB8LDd
>         Model year      : 2013
>         EDID version:     1.4
>         Product code:     0x0408 (1032)
>         Extra descriptor: Unspecified
>         Video input definition: 0xa5 - Digital Input (DisplayPort)
>         White x,y:        0.312, 0.329
>         Red   x,y:        0.640, 0.330
>         Green x,y:        0.300, 0.600
>         Blue  x,y:        0.150, 0.060
>         Extension blocks: 1
>      EDID source: 
>
>      Trying simple VCP read of feature 0x10...
>      read() returned 00 58 42 32 37 30 48 55 0a 20 20
>      Attempt 1 to read feature failed. status = DDCRC_INVALID_DATA(-3004): error parsing data bytes.  Retrying...
>      read() returned 6e 88 02 00 10 00 00 64 00 5a 9a
>      Attempt 2 to read feature succeeded.
>      DDC communication succeeded
>
>   Examining device /dev/i2c-17...
>      Device name (/sys/bus/i2c/devices/i2c-17/name): 0000:01:00.0
>      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=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-18...
>      Device name (/sys/bus/i2c/devices/i2c-18/name): 0000:01:00.0
>      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=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-19...
>      Device name (/sys/bus/i2c/devices/i2c-19/name): 0000:01:00.0
>      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 04 72 08 04 ff ff ff ff   .........r......
>      +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>      +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>      +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>      +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>      +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>      EDID synopsis:
>         Mfg id:           ACR
>         Model:            XB270HU
>         Serial number:    #ASOQgqYB8LDd
>         Model year      : 2013
>         EDID version:     1.4
>         Product code:     0x0408 (1032)
>         Extra descriptor: Unspecified
>         Video input definition: 0xa5 - Digital Input (DisplayPort)
>         White x,y:        0.312, 0.329
>         Red   x,y:        0.640, 0.330
>         Green x,y:        0.300, 0.600
>         Blue  x,y:        0.150, 0.060
>         Extension blocks: 1
>      EDID source: 
>
>      Trying simple VCP read of feature 0x10...
>      Attempt 1 to read feature returned hard error: EREMOTEIO(-121): Remote I/O error
>      DDC communication failed.
>      Is DDC/CI enabled in the monitor's on-screen display?
>
>EDIDs reported by X11 for connected xrandr outputs:
>   xrandr output: DP-3
>      Raw EDID:
>              +0          +4          +8          +c            0   4   8   c   
>      +0000   00 ff ff ff ff ff ff 00 04 72 08 04 ff ff ff ff   .........r......
>      +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>      +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>      +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>      +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>      +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>      EDID synopsis:
>         Mfg id:           ACR
>         Model:            XB270HU
>         Serial number:    #ASOQgqYB8LDd
>         Model year      : 2013
>         EDID version:     1.4
>         Product code:     0x0408 (1032)
>         Extra descriptor: Unspecified
>         Video input definition: 0xa5 - Digital Input (DisplayPort)
>         White x,y:        0.312, 0.329
>         Red   x,y:        0.640, 0.330
>         Green x,y:        0.300, 0.600
>         Blue  x,y:        0.150, 0.060
>         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/i2c-0/i2c-dev/i2c-0
>   Device Node Path: /dev/i2c-0
>      struct udev_device at: 0x55c1f05169c0
>         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 -> nvkm-0000:01:00.0-bus-0000
>            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: 0x55c1f0518c90
>         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 -> nvkm-0000:01:00.0-bus-0001
>            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-10/i2c-dev/i2c-10
>   Device Node Path: /dev/i2c-10
>      struct udev_device at: 0x55c1f051d100
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-10/i2c-dev/i2c-10
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-10/i2c-dev/i2c-10
>         sysname:   i2c-10
>         sysnum:    10
>         devnode:   /dev/i2c-10
>         Properties:
>            DEVNAME -> /dev/i2c-10
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-10/i2c-dev/i2c-10
>            MAJOR -> 89
>            MINOR -> 10
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:10
>            device -> (null)
>            name -> nvkm-0000:01:00.0-aux-0006
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=10
>                      DEVNAME=i2c-10
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-11/i2c-dev/i2c-11
>   Device Node Path: /dev/i2c-11
>      struct udev_device at: 0x55c1f0521cb0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-11/i2c-dev/i2c-11
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-11/i2c-dev/i2c-11
>         sysname:   i2c-11
>         sysnum:    11
>         devnode:   /dev/i2c-11
>         Properties:
>            DEVNAME -> /dev/i2c-11
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-11/i2c-dev/i2c-11
>            MAJOR -> 89
>            MINOR -> 11
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:11
>            device -> (null)
>            name -> nvkm-0000:01:00.0-bus-0007
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=11
>                      DEVNAME=i2c-11
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-12/i2c-dev/i2c-12
>   Device Node Path: /dev/i2c-12
>      struct udev_device at: 0x55c1f0527630
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-12/i2c-dev/i2c-12
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-12/i2c-dev/i2c-12
>         sysname:   i2c-12
>         sysnum:    12
>         devnode:   /dev/i2c-12
>         Properties:
>            DEVNAME -> /dev/i2c-12
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-12/i2c-dev/i2c-12
>            MAJOR -> 89
>            MINOR -> 12
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:12
>            device -> (null)
>            name -> nvkm-0000:01:00.0-aux-0007
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=12
>                      DEVNAME=i2c-12
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-13/i2c-dev/i2c-13
>   Device Node Path: /dev/i2c-13
>      struct udev_device at: 0x55c1f052c380
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-13/i2c-dev/i2c-13
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-13/i2c-dev/i2c-13
>         sysname:   i2c-13
>         sysnum:    13
>         devnode:   /dev/i2c-13
>         Properties:
>            DEVNAME -> /dev/i2c-13
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-13/i2c-dev/i2c-13
>            MAJOR -> 89
>            MINOR -> 13
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:13
>            device -> (null)
>            name -> nvkm-0000:01:00.0-bus-0008
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=13
>                      DEVNAME=i2c-13
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-14/i2c-dev/i2c-14
>   Device Node Path: /dev/i2c-14
>      struct udev_device at: 0x55c1f05310d0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-14/i2c-dev/i2c-14
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-14/i2c-dev/i2c-14
>         sysname:   i2c-14
>         sysnum:    14
>         devnode:   /dev/i2c-14
>         Properties:
>            DEVNAME -> /dev/i2c-14
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-14/i2c-dev/i2c-14
>            MAJOR -> 89
>            MINOR -> 14
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:14
>            device -> (null)
>            name -> nvkm-0000:01:00.0-aux-0008
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=14
>                      DEVNAME=i2c-14
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-15/i2c-dev/i2c-15
>   Device Node Path: /dev/i2c-15
>      struct udev_device at: 0x55c1f0535e20
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-15/i2c-dev/i2c-15
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-15/i2c-dev/i2c-15
>         sysname:   i2c-15
>         sysnum:    15
>         devnode:   /dev/i2c-15
>         Properties:
>            DEVNAME -> /dev/i2c-15
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-15/i2c-dev/i2c-15
>            MAJOR -> 89
>            MINOR -> 15
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:15
>            device -> (null)
>            name -> nvkm-0000:01:00.0-bus-0009
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=15
>                      DEVNAME=i2c-15
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-16/i2c-dev/i2c-16
>   Device Node Path: /dev/i2c-16
>      struct udev_device at: 0x55c1f053ab70
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-16/i2c-dev/i2c-16
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-16/i2c-dev/i2c-16
>         sysname:   i2c-16
>         sysnum:    16
>         devnode:   /dev/i2c-16
>         Properties:
>            DEVNAME -> /dev/i2c-16
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-16/i2c-dev/i2c-16
>            MAJOR -> 89
>            MINOR -> 16
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:16
>            device -> (null)
>            name -> nvkm-0000:01:00.0-aux-0009
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=16
>                      DEVNAME=i2c-16
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-17/i2c-dev/i2c-17
>   Device Node Path: /dev/i2c-17
>      struct udev_device at: 0x55c1f053f9e0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-17/i2c-dev/i2c-17
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-17/i2c-dev/i2c-17
>         sysname:   i2c-17
>         sysnum:    17
>         devnode:   /dev/i2c-17
>         Properties:
>            DEVNAME -> /dev/i2c-17
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-17/i2c-dev/i2c-17
>            MAJOR -> 89
>            MINOR -> 17
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:17
>            device -> (null)
>            name -> 0000:01:00.0
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=17
>                      DEVNAME=i2c-17
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-18/i2c-dev/i2c-18
>   Device Node Path: /dev/i2c-18
>      struct udev_device at: 0x55c1f0544730
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-18/i2c-dev/i2c-18
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-18/i2c-dev/i2c-18
>         sysname:   i2c-18
>         sysnum:    18
>         devnode:   /dev/i2c-18
>         Properties:
>            DEVNAME -> /dev/i2c-18
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-18/i2c-dev/i2c-18
>            MAJOR -> 89
>            MINOR -> 18
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:18
>            device -> (null)
>            name -> 0000:01:00.0
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=18
>                      DEVNAME=i2c-18
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-19/i2c-dev/i2c-19
>   Device Node Path: /dev/i2c-19
>      struct udev_device at: 0x55c1f0549480
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-19/i2c-dev/i2c-19
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-19/i2c-dev/i2c-19
>         sysname:   i2c-19
>         sysnum:    19
>         devnode:   /dev/i2c-19
>         Properties:
>            DEVNAME -> /dev/i2c-19
>            DEVPATH -> /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-19/i2c-dev/i2c-19
>            MAJOR -> 89
>            MINOR -> 19
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:19
>            device -> (null)
>            name -> 0000:01:00.0
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=19
>                      DEVNAME=i2c-19
>
>   ***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: 0x55c1f054e1d0
>         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 -> nvkm-0000:01:00.0-bus-0002
>            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: 0x55c1f05550e0
>         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 -> nvkm-0000:01:00.0-bus-0003
>            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: 0x55c1f055aed0
>         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 -> nvkm-0000:01:00.0-aux-0003
>            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: 0x55c1f055eb90
>         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 -> nvkm-0000:01:00.0-bus-0004
>            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: 0x55c1f0564980
>         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 -> nvkm-0000:01:00.0-aux-0004
>            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: 0x55c1f0568640
>         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 -> nvkm-0000:01:00.0-bus-0005
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=7
>                      DEVNAME=i2c-7
>
>   ***One Device ***
>   path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-8/i2c-dev/i2c-8
>   Device Node Path: /dev/i2c-8
>      struct udev_device at: 0x55c1f056e430
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-8/i2c-dev/i2c-8
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/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/i2c-8/i2c-dev/i2c-8
>            MAJOR -> 89
>            MINOR -> 8
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:8
>            device -> (null)
>            name -> nvkm-0000:01:00.0-aux-0005
>            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/i2c-9/i2c-dev/i2c-9
>   Device Node Path: /dev/i2c-9
>      struct udev_device at: 0x55c1f05720f0
>         devpath:   /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-9/i2c-dev/i2c-9
>         subsystem: i2c-dev
>         devtype:   (null)
>         syspath:   /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/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/i2c-9/i2c-dev/i2c-9
>            MAJOR -> 89
>            MINOR -> 9
>            SUBSYSTEM -> i2c-dev
>         Sysattrs:
>            dev -> 89:9
>            device -> (null)
>            name -> nvkm-0000:01:00.0-bus-0006
>            subsystem -> i2c-dev
>            uevent -> MAJOR=89
>                      MINOR=9
>                      DEVNAME=i2c-9
>
>Summary of udev I2C devices
>   Subsystem   Sysname    Sysattr Name                        Devpath
>   i2c-dev     i2c-0      nvkm-0000:01:00.0-bus-0000          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-0/i2c-dev/i2c-0
>   i2c-dev     i2c-1      nvkm-0000:01:00.0-bus-0001          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-1/i2c-dev/i2c-1
>   i2c-dev     i2c-2      nvkm-0000:01:00.0-bus-0002          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-2/i2c-dev/i2c-2
>   i2c-dev     i2c-3      nvkm-0000:01:00.0-bus-0003          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-3/i2c-dev/i2c-3
>   i2c-dev     i2c-4      nvkm-0000:01:00.0-aux-0003          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-4/i2c-dev/i2c-4
>   i2c-dev     i2c-5      nvkm-0000:01:00.0-bus-0004          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-5/i2c-dev/i2c-5
>   i2c-dev     i2c-6      nvkm-0000:01:00.0-aux-0004          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-6/i2c-dev/i2c-6
>   i2c-dev     i2c-7      nvkm-0000:01:00.0-bus-0005          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-7/i2c-dev/i2c-7
>   i2c-dev     i2c-8      nvkm-0000:01:00.0-aux-0005          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-8/i2c-dev/i2c-8
>   i2c-dev     i2c-9      nvkm-0000:01:00.0-bus-0006          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-9/i2c-dev/i2c-9
>   i2c-dev     i2c-10     nvkm-0000:01:00.0-aux-0006          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-10/i2c-dev/i2c-10
>   i2c-dev     i2c-11     nvkm-0000:01:00.0-bus-0007          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-11/i2c-dev/i2c-11
>   i2c-dev     i2c-12     nvkm-0000:01:00.0-aux-0007          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-12/i2c-dev/i2c-12
>   i2c-dev     i2c-13     nvkm-0000:01:00.0-bus-0008          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-13/i2c-dev/i2c-13
>   i2c-dev     i2c-14     nvkm-0000:01:00.0-aux-0008          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-14/i2c-dev/i2c-14
>   i2c-dev     i2c-15     nvkm-0000:01:00.0-bus-0009          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-15/i2c-dev/i2c-15
>   i2c-dev     i2c-16     nvkm-0000:01:00.0-aux-0009          /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-16/i2c-dev/i2c-16
>   i2c-dev     i2c-17     0000:01:00.0                        /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-17/i2c-dev/i2c-17
>   i2c-dev     i2c-18     0000:01:00.0                        /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-18/i2c-dev/i2c-18
>   i2c-dev     i2c-19     0000:01:00.0                        /devices/pci0000:00/0000:00:01.0/0000:01:00.0/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...
>      [    0.254990] pci 0000:01:00.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
>      [    4.841430] [drm] Initialized
>      [    4.863120] fb: switching to nouveaufb from EFI VGA
>      [    4.863215] nouveau 0000:01:00.0: NVIDIA GM204 (124000a1)
>      [    4.945712] nouveau 0000:01:00.0: bios: version 84.04.28.00.0d
>      [    4.946563] nouveau 0000:01:00.0: disp: dcb 15 type 8 unknown
>      [    4.946986] nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
>      [    4.946997] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554 [ IBUS ]
>      [    4.951975] nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB
>      [    4.951975] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
>      [    4.951977] nouveau 0000:01:00.0: DRM: TMDS table version 2.0
>      [    4.951978] nouveau 0000:01:00.0: DRM: DCB version 4.1
>      [    4.951979] nouveau 0000:01:00.0: DRM: DCB outp 00: 01000f02 00020030
>      [    4.951980] nouveau 0000:01:00.0: DRM: DCB outp 01: 02000f00 00000000
>      [    4.951980] nouveau 0000:01:00.0: DRM: DCB outp 02: 02811f76 04400020
>      [    4.951981] nouveau 0000:01:00.0: DRM: DCB outp 03: 02011f72 00020020
>      [    4.951982] nouveau 0000:01:00.0: DRM: DCB outp 04: 04822f86 04400010
>      [    4.951982] nouveau 0000:01:00.0: DRM: DCB outp 05: 04022f82 00020010
>      [    4.951983] nouveau 0000:01:00.0: DRM: DCB outp 06: 04833f96 04400020
>      [    4.951983] nouveau 0000:01:00.0: DRM: DCB outp 07: 04033f92 00020020
>      [    4.951984] nouveau 0000:01:00.0: DRM: DCB outp 08: 02044f62 00020010
>      [    4.951985] nouveau 0000:01:00.0: DRM: DCB outp 15: 01df5ff8 00000000
>      [    4.951986] nouveau 0000:01:00.0: DRM: DCB conn 00: 00001030
>      [    4.951986] nouveau 0000:01:00.0: DRM: DCB conn 01: 00020146
>      [    4.951987] nouveau 0000:01:00.0: DRM: DCB conn 02: 01000246
>      [    4.951987] nouveau 0000:01:00.0: DRM: DCB conn 03: 02000346
>      [    4.951988] nouveau 0000:01:00.0: DRM: DCB conn 04: 00010461
>      [    4.951988] nouveau 0000:01:00.0: DRM: DCB conn 05: 00000570
>      [    4.951989] nouveau 0000:01:00.0: DRM: Pointer to flat panel table invalid
>      [    5.002345] nouveau 0000:01:00.0: DRM: unknown connector type 70
>      [    5.002362] nouveau 0000:01:00.0: DRM: failed to create encoder 1/8/0: -19
>      [    5.002363] nouveau 0000:01:00.0: DRM: Unknown-1 has no encoders, removing
>      [    5.002380] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>      [    5.002380] [drm] Driver supports precise vblank timestamp query.
>      [    5.011477] nouveau 0000:01:00.0: hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info().
>      [    5.057548] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
>      [    5.157954] ata1.00: supports DRM functions and may not be fully accessible
>      [    5.159582] ata1.00: supports DRM functions and may not be fully accessible
>      [    5.203845] nouveau 0000:01:00.0: priv: GPC0: 419df4 00000000 (1b40820e)
>      [    5.203861] nouveau 0000:01:00.0: priv: GPC1: 419df4 00000000 (1b40820e)
>      [    5.203867] nouveau 0000:01:00.0: priv: GPC2: 419df4 00000000 (1b40820e)
>      [    5.203873] nouveau 0000:01:00.0: priv: GPC3: 419df4 00000000 (1b40820e)
>      [    5.305973] nouveau 0000:01:00.0: DRM: allocated 2560x1440 fb: 0x60000, bo ffff9af042e20400
>      [    5.306062] fbcon: nouveaufb (fb0) is primary device
>      [    5.652622] nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
>      [    5.679257] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 0
>      [   30.196727] Linux video capture interface: v2.00
>      [   30.212173] uvcvideo: Found UVC 1.00 device Rift Sensor (2833:0211)
>      [   30.276993] uvcvideo 4-2:1.0: Entity type for entity Extension 4 was not initialized!
>      [   30.276994] uvcvideo 4-2:1.0: Entity type for entity Processing 3 was not initialized!
>      [   30.276996] uvcvideo 4-2:1.0: Entity type for entity Camera 1 was not initialized!
>      [   30.277101] usbcore: registered new interface driver uvcvideo
>      [   30.277102] USB Video Class driver (1.1.1)
>      [   31.019101] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input15
>      [   31.019169] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input16
>      [   31.019232] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input17
>      [   31.019289] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input18
>
>   Checking journalctl for video and I2C related lines...
>      Aug 05 15:52:49 ubuntu kernel: pci 0000:01:00.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
>      Aug 05 15:52:49 ubuntu kernel: [drm] Initialized
>      Aug 05 15:52:49 ubuntu kernel: fb: switching to nouveaufb from EFI VGA
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: NVIDIA GM204 (124000a1)
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: bios: version 84.04.28.00.0d
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: disp: dcb 15 type 8 unknown
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554 [ IBUS ]
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: TMDS table version 2.0
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB version 4.1
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 00: 01000f02 00020030
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 01: 02000f00 00000000
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 02: 02811f76 04400020
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 03: 02011f72 00020020
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 04: 04822f86 04400010
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 05: 04022f82 00020010
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 06: 04833f96 04400020
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 07: 04033f92 00020020
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 08: 02044f62 00020010
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB outp 15: 01df5ff8 00000000
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB conn 00: 00001030
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB conn 01: 00020146
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB conn 02: 01000246
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB conn 03: 02000346
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB conn 04: 00010461
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: DCB conn 05: 00000570
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: Pointer to flat panel table invalid
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: unknown connector type 70
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: failed to create encoder 1/8/0: -19
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: Unknown-1 has no encoders, removing
>      Aug 05 15:52:49 ubuntu kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>      Aug 05 15:52:49 ubuntu kernel: [drm] Driver supports precise vblank timestamp query.
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info().
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
>      Aug 05 15:52:49 ubuntu kernel: ata1.00: supports DRM functions and may not be fully accessible
>      Aug 05 15:52:49 ubuntu kernel: ata1.00: supports DRM functions and may not be fully accessible
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: priv: GPC0: 419df4 00000000 (1b40820e)
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: priv: GPC1: 419df4 00000000 (1b40820e)
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: priv: GPC2: 419df4 00000000 (1b40820e)
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: priv: GPC3: 419df4 00000000 (1b40820e)
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: DRM: allocated 2560x1440 fb: 0x60000, bo ffff9af042e20400
>      Aug 05 15:52:49 ubuntu kernel: fbcon: nouveaufb (fb0) is primary device
>      Aug 05 15:52:49 ubuntu kernel: nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
>      Aug 05 15:52:49 ubuntu kernel: [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 0
>      Aug 05 15:52:49 ubuntu kernel: Linux video capture interface: v2.00
>      Aug 05 15:52:49 ubuntu kernel: uvcvideo: Found UVC 1.00 device Rift Sensor (2833:0211)
>      Aug 05 15:52:49 ubuntu kernel: uvcvideo 4-2:1.0: Entity type for entity Extension 4 was not initialized!
>      Aug 05 15:52:49 ubuntu kernel: uvcvideo 4-2:1.0: Entity type for entity Processing 3 was not initialized!
>      Aug 05 15:52:49 ubuntu kernel: uvcvideo 4-2:1.0: Entity type for entity Camera 1 was not initialized!
>      Aug 05 15:52:49 ubuntu kernel: usbcore: registered new interface driver uvcvideo
>      Aug 05 15:52:49 ubuntu kernel: USB Video Class driver (1.1.1)
>      Aug 05 15:52:50 ubuntu kernel: input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input15
>      Aug 05 15:52:50 ubuntu kernel: input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input16
>      Aug 05 15:52:50 ubuntu kernel: input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input17
>      Aug 05 15:52:50 ubuntu kernel: input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input18
>      Aug 05 15:52:55 ubuntu compiz-profile-selector[2432]: OpenGL vendor string:   nouveau
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/lib/udev/rules.d/60-drm.rules: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/lib/modules/4.10.0-19-generic/kernel/drivers/media/v4l2-core/videodev.ko: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/lib/modules/4.10.0-19-generic/kernel/drivers/media/v4l2-core/videobuf2-v4l2.ko: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/lib/modules/4.10.0-19-generic/kernel/drivers/media/v4l2-core/videobuf2-memops.ko: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/lib/modules/4.10.0-19-generic/kernel/drivers/media/v4l2-core/videobuf2-vmalloc.ko: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/lib/modules/4.10.0-19-generic/kernel/drivers/media/usb/uvc/uvcvideo.ko: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/usr/share/X11/xorg.conf.d/10-amdgpu.conf: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/usr/share/X11/xorg.conf.d/10-radeon.conf: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/usr/lib/xorg/modules/drivers/nouveau_drv.so: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/usr/share/polkit-1/actions/org.x.xf86-video-intel.backlight-helper.policy: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-intel.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-qxl.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/libdrm-amdgpu1:amd64.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-nouveau.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-fbdev.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/gnome-video-effects.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-all.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-vmware.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-radeon.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/libdrm2:amd64.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/libdrm-intel1:amd64.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-vesa.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-amdgpu.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/unity-lens-video.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/unity-scope-video-remote.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/libdrm-radeon1:amd64.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/libdrm-nouveau2:amd64.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:/var/lib/dpkg/info/xserver-xorg-video-ati.list: Error retrieving chunk extents: Operation not supported
>      Aug 05 15:54:11 ubuntu ureadahead[1187]: ureadahead:totem-video-thumbnailer.1.gz: Ignored relative path
>
>   Limiting output to 200 lines...
>   Checking Xorg.0.log for video and I2C related lines...
>      [    31.023] 	X.Org Video Driver: 23.0
>      [    31.024] (II) xfree86: Adding drm device (/dev/dri/card0)
>      [    31.049] (==) Matched nvidia as autoconfigured driver 0
>      [    31.049] (==) Matched nouveau as autoconfigured driver 1
>      [    31.049] (==) Matched nvidia as autoconfigured driver 2
>      [    31.049] (==) Matched nouveau as autoconfigured driver 3
>      [    31.049] (II) LoadModule: "nvidia"
>      [    31.049] (WW) Warning, couldn't open module nvidia
>      [    31.049] (II) UnloadModule: "nvidia"
>      [    31.049] (II) Unloading nvidia
>      [    31.049] (EE) Failed to load module "nvidia" (module does not exist, 0)
>      [    31.049] (II) LoadModule: "nouveau"
>      [    31.050] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
>      [    31.055] (II) Module nouveau: vendor="X.Org Foundation"
>      [    31.055] 	Module class: X.Org Video Driver
>      [    31.055] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.061] 	Module class: X.Org Video Driver
>      [    31.061] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.061] 	Module class: X.Org Video Driver
>      [    31.061] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.063] 	Module class: X.Org Video Driver
>      [    31.063] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.063] (==) Matched nvidia as autoconfigured driver 0
>      [    31.063] (==) Matched nouveau as autoconfigured driver 1
>      [    31.063] (==) Matched nvidia as autoconfigured driver 2
>      [    31.063] (==) Matched nouveau as autoconfigured driver 3
>      [    31.063] (II) LoadModule: "nvidia"
>      [    31.063] (WW) Warning, couldn't open module nvidia
>      [    31.063] (II) UnloadModule: "nvidia"
>      [    31.063] (II) Unloading nvidia
>      [    31.063] (EE) Failed to load module "nvidia" (module does not exist, 0)
>      [    31.063] (II) LoadModule: "nouveau"
>      [    31.063] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
>      [    31.063] (II) Module nouveau: vendor="X.Org Foundation"
>      [    31.063] 	Module class: X.Org Video Driver
>      [    31.063] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.063] (II) UnloadModule: "nouveau"
>      [    31.063] (II) Unloading nouveau
>      [    31.063] (II) Failed to load module "nouveau" (already loaded, 0)
>      [    31.064] 	Module class: X.Org Video Driver
>      [    31.064] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.064] 	Module class: X.Org Video Driver
>      [    31.064] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.064] 	Module class: X.Org Video Driver
>      [    31.064] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.064] (II) NOUVEAU driver Date:   Tue Mar 7 18:44:43 2017 -0500
>      [    31.064] (II) NOUVEAU driver for NVIDIA chipset families :
>      [    31.065] (II) [drm] nouveau interface version: 1.3.1
>      [    31.068] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.068] (--) NOUVEAU(0): Chipset: "NVIDIA NV124"
>      [    31.068] (II) NOUVEAU(0): Creating default Display subsection in Screen section
>      [    31.068] (==) NOUVEAU(0): Depth 24, (--) framebuffer bpp 32
>      [    31.068] (==) NOUVEAU(0): RGB weight 888
>      [    31.068] (==) NOUVEAU(0): Default visual is TrueColor
>      [    31.068] (==) NOUVEAU(0): Using HW cursor
>      [    31.068] (==) NOUVEAU(0): Allowed maximum DRI level 2.
>      [    31.068] (==) NOUVEAU(0): GLX sync to VBlank enabled.
>      [    31.068] (==) NOUVEAU(0): Page flipping enabled
>      [    31.068] (==) NOUVEAU(0): Swap limit set to 1 [Max allowed 2]
>      [    31.068] (==) NOUVEAU(0): Page flipping synced to vblank by kernel.
>      [    31.068] (II) NOUVEAU(0): Initializing outputs ...
>      [    31.081] (II) NOUVEAU(0): Output DVI-I-1 has no monitor section
>      [    31.144] (II) NOUVEAU(0): Output DP-1 has no monitor section
>      [    31.208] (II) NOUVEAU(0): Output DP-2 has no monitor section
>      [    31.215] (II) NOUVEAU(0): Output DP-3 has no monitor section
>      [    31.216] (II) NOUVEAU(0): Output HDMI-1 has no monitor section
>      [    31.216] (II) NOUVEAU(0): 5 crtcs needed for screen.
>      [    31.217] (II) NOUVEAU(0): Allocated crtc nr. 0 to this screen.
>      [    31.217] (II) NOUVEAU(0): Allocated crtc nr. 1 to this screen.
>      [    31.217] (II) NOUVEAU(0): Allocated crtc nr. 2 to this screen.
>      [    31.217] (II) NOUVEAU(0): Allocated crtc nr. 3 to this screen.
>      [    31.229] (II) NOUVEAU(0): EDID for output DVI-I-1
>      [    31.292] (II) NOUVEAU(0): EDID for output DP-1
>      [    31.356] (II) NOUVEAU(0): EDID for output DP-2
>      [    31.363] (II) NOUVEAU(0): EDID for output DP-3
>      [    31.363] (II) NOUVEAU(0): Manufacturer: ACR  Model: 408  Serial#: 4294967295
>      [    31.363] (II) NOUVEAU(0): Year: 2013  Week: 255
>      [    31.363] (II) NOUVEAU(0): EDID Version: 1.4
>      [    31.363] (II) NOUVEAU(0): Digital Display Input
>      [    31.363] (II) NOUVEAU(0): 8 bits per channel
>      [    31.363] (II) NOUVEAU(0): Digital interface is DisplayPort
>      [    31.363] (II) NOUVEAU(0): Max Image Size [cm]: horiz.: 60  vert.: 34
>      [    31.363] (II) NOUVEAU(0): Gamma: 2.20
>      [    31.363] (II) NOUVEAU(0): No DPMS capabilities specified
>      [    31.363] (II) NOUVEAU(0): Supported color encodings: RGB 4:4:4 
>      [    31.363] (II) NOUVEAU(0): Default color space is primary color space
>      [    31.363] (II) NOUVEAU(0): First detailed timing is preferred mode
>      [    31.363] (II) NOUVEAU(0): Preferred mode is native pixel format and refresh rate
>      [    31.363] (II) NOUVEAU(0): redX: 0.640 redY: 0.330   greenX: 0.300 greenY: 0.600
>      [    31.363] (II) NOUVEAU(0): blueX: 0.150 blueY: 0.060   whiteX: 0.312 whiteY: 0.329
>      [    31.363] (II) NOUVEAU(0): Manufacturer's mask: 0
>      [    31.363] (II) NOUVEAU(0): Supported detailed timing:
>      [    31.363] (II) NOUVEAU(0): clock: 241.5 MHz   Image Size:  598 x 336 mm
>      [    31.363] (II) NOUVEAU(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
>      [    31.363] (II) NOUVEAU(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1481 v_border: 0
>      [    31.363] (II) NOUVEAU(0): Serial No: #ASOQgqYB8LDd
>      [    31.363] (II) NOUVEAU(0): Ranges: V min: 30 V max: 150 Hz, H min: 30 H max: 210 kHz, PixClock max 545 MHz
>      [    31.363] (II) NOUVEAU(0): Monitor name: XB270HU
>      [    31.363] (II) NOUVEAU(0): Supported detailed timing:
>      [    31.363] (II) NOUVEAU(0): clock: 346.5 MHz   Image Size:  598 x 336 mm
>      [    31.363] (II) NOUVEAU(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
>      [    31.363] (II) NOUVEAU(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1499 v_border: 0
>      [    31.363] (II) NOUVEAU(0): Supported detailed timing:
>      [    31.363] (II) NOUVEAU(0): clock: 410.5 MHz   Image Size:  598 x 336 mm
>      [    31.363] (II) NOUVEAU(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
>      [    31.363] (II) NOUVEAU(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1510 v_border: 0
>      [    31.363] (II) NOUVEAU(0): Supported detailed timing:
>      [    31.363] (II) NOUVEAU(0): clock: 497.8 MHz   Image Size:  598 x 336 mm
>      [    31.363] (II) NOUVEAU(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
>      [    31.363] (II) NOUVEAU(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1525 v_border: 0
>      [    31.363] (II) NOUVEAU(0): Supported detailed timing:
>      [    31.363] (II) NOUVEAU(0): clock: 538.8 MHz   Image Size:  598 x 336 mm
>      [    31.363] (II) NOUVEAU(0): h_active: 2560  h_sync: 2564  h_sync_end 2580 h_blank_end 2582 h_border: 0
>      [    31.363] (II) NOUVEAU(0): v_active: 1440  v_sync: 1441  v_sync_end 1442 v_blanking: 1449 v_border: 0
>      [    31.363] (II) NOUVEAU(0): Supported detailed timing:
>      [    31.363] (II) NOUVEAU(0): clock: 95.0 MHz   Image Size:  598 x 336 mm
>      [    31.363] (II) NOUVEAU(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
>      [    31.363] (II) NOUVEAU(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1457 v_border: 0
>      [    31.363] (II) NOUVEAU(0): Number of EDID sections to follow: 1
>      [    31.363] (II) NOUVEAU(0): EDID (in hex):
>      [    31.363] (II) NOUVEAU(0): 	00ffffffffffff0004720804ffffffff
>      [    31.363] (II) NOUVEAU(0): 	ff170104a53c227806ee91a3544c9926
>      [    31.363] (II) NOUVEAU(0): 	0f505400000001010101010101010101
>      [    31.363] (II) NOUVEAU(0): 	010101010101565e00a0a0a029503020
>      [    31.363] (II) NOUVEAU(0): 	350056502100001a000000ff00234153
>      [    31.363] (II) NOUVEAU(0): 	4f5167715942384c4464000000fd001e
>      [    31.363] (II) NOUVEAU(0): 	961ed236010a202020202020000000fc
>      [    31.363] (II) NOUVEAU(0): 	00584232373048550a20202020200127
>      [    31.363] (II) NOUVEAU(0): 	02030a01654b040001015a8700a0a0a0
>      [    31.363] (II) NOUVEAU(0): 	3b503020350056502100001a5aa000a0
>      [    31.363] (II) NOUVEAU(0): 	a0a046503020350056502100001a6fc2
>      [    31.363] (II) NOUVEAU(0): 	00a0a0a055503020350056502100001a
>      [    31.363] (II) NOUVEAU(0): 	74d20016a0a009500410110056502100
>      [    31.363] (II) NOUVEAU(0): 	001e1c2500a0a0a01150302035005650
>      [    31.363] (II) NOUVEAU(0): 	2100001a000000000000000000000000
>      [    31.363] (II) NOUVEAU(0): 	000000000000000000000000000000af
>      [    31.363] (II) NOUVEAU(0): Printing probed modes for output DP-3
>      [    31.363] (II) NOUVEAU(0): Modeline "2560x1440"x60.0  241.50  2560 2608 2640 2720  1440 1443 1448 1481 +hsync -vsync (88.8 kHz eP)
>      [    31.363] (II) NOUVEAU(0): Modeline "2560x1440"x144.0  538.76  2560 2564 2580 2582  1440 1441 1442 1449 +hsync +vsync (208.7 kHz e)
>      [    31.363] (II) NOUVEAU(0): Modeline "2560x1440"x120.0  497.75  2560 2608 2640 2720  1440 1443 1448 1525 +hsync -vsync (183.0 kHz e)
>      [    31.363] (II) NOUVEAU(0): Modeline "2560x1440"x99.9  410.50  2560 2608 2640 2720  1440 1443 1448 1510 +hsync -vsync (150.9 kHz e)
>      [    31.363] (II) NOUVEAU(0): Modeline "2560x1440"x85.0  346.50  2560 2608 2640 2720  1440 1443 1448 1499 +hsync -vsync (127.4 kHz e)
>      [    31.363] (II) NOUVEAU(0): Modeline "2560x1440"x24.0   95.00  2560 2608 2640 2720  1440 1443 1448 1457 +hsync -vsync (34.9 kHz e)
>      [    31.364] (II) NOUVEAU(0): EDID for output HDMI-1
>      [    31.364] (II) NOUVEAU(0): Output DVI-I-1 disconnected
>      [    31.364] (II) NOUVEAU(0): Output DP-1 disconnected
>      [    31.364] (II) NOUVEAU(0): Output DP-2 disconnected
>      [    31.364] (II) NOUVEAU(0): Output DP-3 connected
>      [    31.364] (II) NOUVEAU(0): Output HDMI-1 disconnected
>      [    31.364] (II) NOUVEAU(0): Using exact sizes for initial modes
>      [    31.364] (II) NOUVEAU(0): Output DP-3 using initial mode 2560x1440 +0+0
>      [    31.364] (==) NOUVEAU(0): Using gamma correction (1.0, 1.0, 1.0)
>      [    31.364] (--) NOUVEAU(0): Virtual size is 2560x1440 (pitch 0)
>      [    31.364] (**) NOUVEAU(0):  Driver mode "2560x1440": 241.5 MHz (scaled from 0.0 MHz), 88.8 kHz, 60.0 Hz
>      [    31.364] (II) NOUVEAU(0): Modeline "2560x1440"x60.0  241.50  2560 2608 2640 2720  1440 1443 1448 1481 +hsync -vsync (88.8 kHz eP)
>      [    31.364] (**) NOUVEAU(0):  Driver mode "2560x1440": 538.8 MHz (scaled from 0.0 MHz), 208.7 kHz, 144.0 Hz
>      [    31.364] (II) NOUVEAU(0): Modeline "2560x1440"x144.0  538.76  2560 2564 2580 2582  1440 1441 1442 1449 +hsync +vsync (208.7 kHz e)
>      [    31.364] (**) NOUVEAU(0):  Driver mode "2560x1440": 497.8 MHz (scaled from 0.0 MHz), 183.0 kHz, 120.0 Hz
>      [    31.364] (II) NOUVEAU(0): Modeline "2560x1440"x120.0  497.75  2560 2608 2640 2720  1440 1443 1448 1525 +hsync -vsync (183.0 kHz e)
>      [    31.364] (**) NOUVEAU(0):  Driver mode "2560x1440": 410.5 MHz (scaled from 0.0 MHz), 150.9 kHz, 99.9 Hz
>      [    31.364] (II) NOUVEAU(0): Modeline "2560x1440"x99.9  410.50  2560 2608 2640 2720  1440 1443 1448 1510 +hsync -vsync (150.9 kHz e)
>      [    31.364] (**) NOUVEAU(0):  Driver mode "2560x1440": 346.5 MHz (scaled from 0.0 MHz), 127.4 kHz, 85.0 Hz
>      [    31.364] (II) NOUVEAU(0): Modeline "2560x1440"x85.0  346.50  2560 2608 2640 2720  1440 1443 1448 1499 +hsync -vsync (127.4 kHz e)
>      [    31.364] (**) NOUVEAU(0):  Driver mode "2560x1440": 95.0 MHz (scaled from 0.0 MHz), 34.9 kHz, 24.0 Hz
>      [    31.364] (II) NOUVEAU(0): Modeline "2560x1440"x24.0   95.00  2560 2608 2640 2720  1440 1443 1448 1457 +hsync -vsync (34.9 kHz e)
>      [    31.364] (==) NOUVEAU(0): DPI set to (96, 96)
>      [    31.392] (II) NOUVEAU(0): Channel setup complete.
>      [    31.414] (II) NOUVEAU(0): [COPY] async initialised.
>      [    31.417] (II) NOUVEAU(0): Hardware support for Present enabled
>      [    31.417] (II) NOUVEAU(0): [DRI2] Setup complete
>      [    31.417] (II) NOUVEAU(0): [DRI2]   DRI driver: nouveau
>      [    31.417] (II) NOUVEAU(0): [DRI2]   VDPAU driver: nouveau
>      [    31.418] 	ABI class: X.Org Video Driver, version 23.0
>      [    31.418] (==) NOUVEAU(0): Backing store enabled
>      [    31.418] (==) NOUVEAU(0): Silken mouse enabled
>      [    31.418] (II) NOUVEAU(0): [XvMC] Associated with Nouveau GeForce 8/9 Textured Video.
>      [    31.418] (II) NOUVEAU(0): [XvMC] Extension initialized.
>      [    31.418] (==) NOUVEAU(0): DPMS enabled
>      [    31.418] (II) NOUVEAU(0): RandR 1.2 enabled, ignore the following RandR disabled message.
>      [    31.747] (II) AIGLX: Loaded and initialized nouveau
>      [    31.750] (II) NOUVEAU(0): NVEnterVT is called.
>      [    31.751] (II) NOUVEAU(0): Setting screen physical size to 677 x 381
>      [    31.881] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event15)
>      [    31.881] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event16)
>      [    31.882] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event17)
>      [    31.882] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event18)
>      [    32.064] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event18)
>      [    32.064] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event16)
>      [    32.064] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event17)
>      [    32.065] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event15)
>      [    36.239] (II) NOUVEAU(0): EDID vendor "ACR", prod id 1032
>      [    36.239] (II) NOUVEAU(0): Using EDID range info for horizontal sync
>      [    36.239] (II) NOUVEAU(0): Using EDID range info for vertical refresh
>      [    36.239] (II) NOUVEAU(0): Printing DDC gathered Modelines:
>      [    36.239] (II) NOUVEAU(0): Modeline "2560x1440"x0.0  241.50  2560 2608 2640 2720  1440 1443 1448 1481 +hsync -vsync (88.8 kHz eP)
>      [    36.239] (II) NOUVEAU(0): Modeline "2560x1440"x0.0  346.50  2560 2608 2640 2720  1440 1443 1448 1499 +hsync -vsync (127.4 kHz e)
>      [    36.239] (II) NOUVEAU(0): Modeline "2560x1440"x0.0  410.50  2560 2608 2640 2720  1440 1443 1448 1510 +hsync -vsync (150.9 kHz e)
>      [    36.239] (II) NOUVEAU(0): Modeline "2560x1440"x0.0  497.75  2560 2608 2640 2720  1440 1443 1448 1525 +hsync -vsync (183.0 kHz e)
>      [    36.239] (II) NOUVEAU(0): Modeline "2560x1440"x0.0  538.76  2560 2564 2580 2582  1440 1441 1442 1449 +hsync +vsync (208.7 kHz e)
>      [    36.239] (II) NOUVEAU(0): Modeline "2560x1440"x0.0   95.00  2560 2608 2640 2720  1440 1443 1448 1457 +hsync -vsync (34.9 kHz e)
>
>Probing connected monitors using libdrm...
>
>   Checking libdrm version using pkg-config...
>      2.4.76
>
>   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:     1.3.1
>         Driver:      nouveau
>         Date:        20120801
>         Description: nVidia Riva/TNT/GeForce/Quadro/Tesla
>
>      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:      0x10de:0x13c0
>         subvendor vid:pid:      0x1462:0x3170
>         revision id:            0x00a1
>
>      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:  type                 flags: 0x0000000c - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_ENUM
>         Property  6:  SRC_X                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property  7:  SRC_Y                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property  8:  SRC_W                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property  9:  SRC_H                flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 10:  CRTC_X               flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 11:  CRTC_Y               flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 12:  CRTC_W               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 13:  CRTC_H               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 14:  FB_ID                flags: 0x80000040 - DRM_MODE_PROP_OBJECT, DRM_MODE_PROP_ATOMIC
>         Property 15:  IN_FENCE_FD          flags: 0x80000080 - DRM_MODE_PROP_SIGNED_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 16:  OUT_FENCE_PTR        flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 17:  CRTC_ID              flags: 0x80000040 - DRM_MODE_PROP_OBJECT, DRM_MODE_PROP_ATOMIC
>         Property 18:  ACTIVE               flags: 0x80000002 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_ATOMIC
>         Property 19:  MODE_ID              flags: 0x80000010 - DRM_MODE_PROP_BLOB, DRM_MODE_PROP_ATOMIC
>         Property 20:  DEGAMMA_LUT          flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 21:  DEGAMMA_LUT_SIZE     flags: 0x00000006 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_IMMUTABLE
>         Property 22:  CTM                  flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 23:  GAMMA_LUT            flags: 0x00000010 - DRM_MODE_PROP_BLOB
>         Property 24:  GAMMA_LUT_SIZE       flags: 0x00000006 - DRM_MODE_PROP_RANGE, DRM_MODE_PROP_IMMUTABLE
>         Property 25:  scaling mode         flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 26:  select subconnector  flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 27:  subconnector         flags: 0x0000000c - DRM_MODE_PROP_IMMUTABLE, DRM_MODE_PROP_ENUM
>         Property 28:  dithering mode       flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 29:  dithering depth      flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 30:  underscan            flags: 0x00000008 - DRM_MODE_PROP_ENUM
>         Property 31:  underscan hborder    flags: 0x00000002 - DRM_MODE_PROP_RANGE
>         Property 32:  underscan vborder    flags: 0x00000002 - DRM_MODE_PROP_RANGE
>         Property 33:  vibrant hue          flags: 0x00000002 - DRM_MODE_PROP_RANGE
>         Property 34:  color vibrance       flags: 0x00000002 - DRM_MODE_PROP_RANGE
>
>      Scanning connectors...
>      connector_id:        47
>         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
>         Subconnector value = 0 - Unknown
>      connector_id:        50
>         connector name       DP-1
>         connector_type:      10 - DP
>         connector_type_id:   1
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        57
>         connector name       DP-2
>         connector_type:      10 - DP
>         connector_type_id:   2
>         connection:          2 - disconnected
>         encoder:             0
>         Encoder with id 0 not found
>         EDID property
>            Blob not found
>      connector_id:        64
>         connector name       DP-3
>         connector_type:      10 - DP
>         connector_type_id:   3
>         connection:          1 - connected
>         encoder:             65
>            encoder type (signal format): 2 - TDMS
>         EDID property
>            Raw property blob:
>            blob id: 73
>                    +0          +4          +8          +c            0   4   8   c   
>            +0000   00 ff ff ff ff ff ff 00 04 72 08 04 ff ff ff ff   .........r......
>            +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>            +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>            +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>            +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>            +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>            +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>            +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>            +0080   02 03 0a 01 65 4b 04 00 01 01 5a 87 00 a0 a0 a0   ....eK....Z.....
>            +0090   3b 50 30 20 35 00 56 50 21 00 00 1a 5a a0 00 a0   ;P0 5.VP!...Z...
>            +00a0   a0 a0 46 50 30 20 35 00 56 50 21 00 00 1a 6f c2   ..FP0 5.VP!...o.
>            +00b0   00 a0 a0 a0 55 50 30 20 35 00 56 50 21 00 00 1a   ....UP0 5.VP!...
>            +00c0   74 d2 00 16 a0 a0 09 50 04 10 11 00 56 50 21 00   t......P....VP!.
>            +00d0   00 1e 1c 25 00 a0 a0 a0 11 50 30 20 35 00 56 50   ...%.....P0 5.VP
>            +00e0   21 00 00 1a 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 af   ................
>            EDID synopsis:
>               Mfg id:           ACR
>               Model:            XB270HU
>               Serial number:    #ASOQgqYB8LDd
>               Model year      : 2013
>               EDID version:     1.4
>               Product code:     0x0408 (1032)
>               Extra descriptor: Unspecified
>               Video input definition: 0xa5 - Digital Input (DisplayPort)
>               White x,y:        0.312, 0.329
>               Red   x,y:        0.640, 0.330
>               Green x,y:        0.300, 0.600
>               Blue  x,y:        0.150, 0.060
>               Extension blocks: 1
>            EDID source: 
>      connector_id:        71
>         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
>
>Device Identifier Cross Reference Report
>
>   EDID: ...20200127  Mfg: ACR  Model: XB270HU        SN: #ASOQgqYB8LDd
>      Bus:           /dev/i2c-19
>      XrandR output: DP-3
>      DRM connector: DP-3
>      UDEV name:     0000:01:00.0
>      UDEV syspath:  /devices/pci0000:00/0000:00:01.0/0000:01:00.0/i2c-19/i2c-dev/i2c-19
>
>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:    0
>       2:    1
>       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:   1
>   Failed due to fatal error:          0
>   Total attempts:                     2
>
>Retry statistics for multi-part exchange
>   No tries attempted
>
>DDC Related Errors:  
>Count   Status Code                          Description
>   15   EREMOTEIO                    ( -121) Remote I/O error 
>    1   DDCRC_RESPONSE_ENVELOPE      (-3002) invalid source address in reply packet 
>    1   DDCRC_RETRIES                (-3015) maximum retries exceeded  (derived)
>Total errors: 17
>
>Errors Wrapped in Retry:  
>Count   Status Code                          Description
>   15   EREMOTEIO                    ( -121) Remote I/O error 
>    1   DDCRC_RESPONSE_ENVELOPE      (-3002) invalid source address in reply packet 
>Total errors: 16
>
>Sleep Strategy Stats:
>   Total IO events:        387
>   IO error count:          17
>   Total sleep events:      22
>
>   Sleep Event type      Count
>   SE_WRITE_TO_READ         10
>   SE_POST_OPEN              2
>   SE_POST_WRITE             0
>   SE_POST_READ             10
>   SE_DDC_NULL               0
>   SE_POST_SAVE_SETTINGS     0
>
>Call Stats:
>   Type                                     Count Millisec  (   Nanosec)
>   write calls       (IE_WRITE)                95     1289  (1289158027)
>   read calls        (IE_READ)                 54      663  ( 663684280)
>   open file calls   (IE_OPEN)                 47        0  (    530376)
>   close file calls  (IE_CLOSE)                47        0  (    148927)
>   other I/O calls   (IE_OTHER)               144        0  (     92727)
>   Totals:                                    387     1953  (1953614337)
>
>Sleep Call Stats:
>   Total sleep calls:                                   44
>   Requested sleep time milliseconds :                2200
>   Actual sleep milliseconds (nanosec):               2203  (2203246433)
>
>Total elapsed milliseconds (nanoseconds):            65400  (65400599851)
>
>*** Detected Displays ***
>Display 1
>   I2C bus:             /dev/i2c-16
>   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-16/name: nvkm-0000:01:00.0-aux-0009
>   EDID synopsis:
>      Mfg id:           ACR
>      Model:            XB270HU
>      Serial number:    #ASOQgqYB8LDd
>      Model year      : 2013
>      EDID version:     1.4
>      Product code:     0x0408 (1032)
>      Extra descriptor: Unspecified
>      Video input definition: 0xa5 - Digital Input (DisplayPort)
>      White x,y:        0.312, 0.329
>      Red   x,y:        0.640, 0.330
>      Green x,y:        0.300, 0.600
>      Blue  x,y:        0.150, 0.060
>      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 04 72 08 04 ff ff ff ff   .........r......
>      +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>      +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>      +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>      +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>      +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>   VCP version:         2.2
>   Controller mfg:      Not defined - a manufacturer designed controller
>   Firmware version:    1.5
>   Monitor returns DDC Null Response for unsupported features: false
>
>Invalid display
>   I2C bus:             /dev/i2c-19
>   Supports DDC:        false
>      I2C address 0x30 (EDID block#)  present: true 
>      I2C address 0x37 (DDC)          present: false
>      I2C address 0x50 (EDID)         present: true 
>      /sys/bus/i2c/devices/i2c-19/name: 0000:01:00.0
>   EDID synopsis:
>      Mfg id:           ACR
>      Model:            XB270HU
>      Serial number:    #ASOQgqYB8LDd
>      Model year      : 2013
>      EDID version:     1.4
>      Product code:     0x0408 (1032)
>      Extra descriptor: Unspecified
>      Video input definition: 0xa5 - Digital Input (DisplayPort)
>      White x,y:        0.312, 0.329
>      Red   x,y:        0.640, 0.330
>      Green x,y:        0.300, 0.600
>      Blue  x,y:        0.150, 0.060
>      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 04 72 08 04 ff ff ff ff   .........r......
>      +0010   ff 17 01 04 a5 3c 22 78 06 ee 91 a3 54 4c 99 26   .....<"x....TL.&
>      +0020   0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01   .PT.............
>      +0030   01 01 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20   ......V^....)P0 
>      +0040   35 00 56 50 21 00 00 1a 00 00 00 ff 00 23 41 53   5.VP!........#AS
>      +0050   4f 51 67 71 59 42 38 4c 44 64 00 00 00 fd 00 1e   OQgqYB8LDd......
>      +0060   96 1e d2 36 01 0a 20 20 20 20 20 20 00 00 00 fc   ...6..      ....
>      +0070   00 58 42 32 37 30 48 55 0a 20 20 20 20 20 01 27   .XB270HU.     .'
>   DDC communication failed
>   Is DDC/CI enabled in the monitor's on-screen display?
>
>
>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:    2
>       2:    1
>       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:  
>Count   Status Code                          Description
>    1   DDCRC_RESPONSE_ENVELOPE      (-3002) invalid source address in reply packet 
>Total errors: 1
>
>Errors Wrapped in Retry:  
>Count   Status Code                          Description
>    1   DDCRC_RESPONSE_ENVELOPE      (-3002) invalid source address in reply packet 
>Total errors: 1
>
>Sleep Strategy Stats:
>   Total IO events:         14
>   IO error count:           1
>   Total sleep events:      32
>
>   Sleep Event type      Count
>   SE_WRITE_TO_READ          4
>   SE_POST_OPEN              2
>   SE_POST_WRITE             0
>   SE_POST_READ              4
>   SE_DDC_NULL               0
>   SE_POST_SAVE_SETTINGS     0
>
>Call Stats:
>   Type                                     Count Millisec  (   Nanosec)
>   write calls       (IE_WRITE)                 4        0  (    952202)
>   read calls        (IE_READ)                  4        2  (   2108229)
>   open file calls   (IE_OPEN)                  2        0  (     21629)
>   close file calls  (IE_CLOSE)                 2        0  (     10017)
>   other I/O calls   (IE_OTHER)                 2        0  (      3007)
>   Totals:                                     14        3  (   3095084)
>
>Sleep Call Stats:
>   Total sleep calls:                                   54
>   Requested sleep time milliseconds :                2700
>   Actual sleep milliseconds (nanosec):               2704  (2704023854)
>
>Elapsed milliseconds since last reset (nanoseconds):   504  ( 504201529)
>Total elapsed milliseconds (nanoseconds):            65904  (65904805572)
>Setting output level normal  Table features will be skipped...
>
>Probing display 1
>
>Mfg id: ACR, model: XB270HU, sn: #ASOQgqYB8LDd
>
>Capabilities for display on bus /dev/i2c-16
>MCCS version: 2.2
>Commands:
>  Command: 01 (VCP Request)
>  Command: 02 (VCP Response)
>  Command: 03 (VCP Set)
>  Command: 06 (Timing Reply )
>  Command: 07 (Timing Request)
>  Command: 0c (Save Settings)
>  Command: e3 (Capabilities Reply)
>  Command: f3 (Capabilities Request)
>VCP Features:
>  Feature: 02 (New control value)
>  Feature: 03 (Soft controls)
>    Values:
>       01: Button 1 active
>  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:
>       03: 4000 K
>       05: 6500 K
>       09: 10000 K
>       0b: User 1
>  Feature: 16 (Video gain: Red)
>  Feature: 18 (Video gain: Green)
>  Feature: 1A (Video gain: Blue)
>  Feature: 2E (Gray scale expansion)
>  Feature: 52 (Active control)
>  Feature: 72 (Gamma)
>    Values: 00 78 ff (interpretation unavailable)
>  Feature: B6 (Display technology type)
>  Feature: C0 (Display usage time)
>  Feature: C8 (Display controller type)
>  Feature: C9 (Display firmware level)
>  Feature: CA (OSD/Button Control)
>  Feature: DF (VCP Version)
>
>May support table reads:   false
>
>Scanning all VCP feature codes for display Display_Handle[i2c: fh=3, busno=16]
>VCP code 0x00 (Unknown feature               ): mh=0x00, ml=0x00, sh=0x00, sl=0x00, max value =     0, cur value =     0
>VCP code 0x01 (Degauss                       ): Write-only feature
>VCP code 0x02 (New control value             ): No new control values (0x01)
>VCP code 0x03 (Soft controls                 ): No button active (sl=0x00)
>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               ): Maximum retries exceeded
>VCP code 0x08 (Restore color defaults        ): Write-only feature
>VCP code 0x09 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x0a (Restore factory TV defaults   ): Write-only feature
>VCP code 0x0b (Color temperature increment   ): Maximum retries exceeded
>VCP code 0x0c (Color temperature request     ): Maximum retries exceeded
>VCP code 0x0d (Unknown feature               ): Maximum retries exceeded
>VCP code 0x0e (Clock                         ): Maximum retries exceeded
>VCP code 0x0f (Unknown feature               ): Maximum retries exceeded
>VCP code 0x10 (Brightness                    ): current value =    90, max value =   100
>VCP code 0x11 (Flesh tone enhancement        ): Maximum retries exceeded
>VCP code 0x12 (Contrast                      ): current value =   102, max value =   150
>VCP code 0x13 (Backlight control             ): Deprecated
>VCP code 0x14 (Select color preset           ): Setting: 6500 K (0x05)
>VCP code 0x15 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x16 (Video gain: Red               ): current value =   100, max value =   150
>VCP code 0x17 (User color vision compensation): Maximum retries exceeded
>VCP code 0x18 (Video gain: Green             ): current value =   100, max value =   150
>VCP code 0x19 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x1a (Video gain: Blue              ): current value =   100, max value =   150
>VCP code 0x1b (Unknown feature               ): Maximum retries exceeded
>VCP code 0x1c (Focus                         ): Maximum retries exceeded
>VCP code 0x1d (Unknown feature               ): Maximum retries exceeded
>VCP code 0x1e (Auto setup                    ): Maximum retries exceeded
>VCP code 0x1f (Auto color setup              ): Maximum retries exceeded
>VCP code 0x20 (Horizontal Position (Phase)   ): Maximum retries exceeded
>VCP code 0x21 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x22 (Horizontal Size               ): Maximum retries exceeded
>VCP code 0x23 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x24 (Horizontal Pincushion         ): Maximum retries exceeded
>VCP code 0x25 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x26 (Horizontal Pincushion Balance ): Maximum retries exceeded
>VCP code 0x27 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x28 (Horizontal Convergence R/B    ): Maximum retries exceeded
>VCP code 0x29 (Horizontal Convergence M/G    ): Maximum retries exceeded
>VCP code 0x2a (Horizontal Linearity          ): Maximum retries exceeded
>VCP code 0x2b (Unknown feature               ): Maximum retries exceeded
>VCP code 0x2c (Horizontal Linearity Balance  ): Maximum retries exceeded
>VCP code 0x2d (Unknown feature               ): Maximum retries exceeded
>VCP code 0x2e (Gray scale expansion          ): mh=0x00, ml=0x00, sh=0x00, sl=0x00
>VCP code 0x2f (Unknown feature               ): Maximum retries exceeded
>VCP code 0x30 (Vertical Position (Phase)     ): Maximum retries exceeded
>VCP code 0x31 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x32 (Vertical Size                 ): Maximum retries exceeded
>VCP code 0x33 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x34 (Vertical Pincushion           ): Maximum retries exceeded
>VCP code 0x35 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x36 (Vertical Pincushion Balance   ): Maximum retries exceeded
>VCP code 0x37 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x38 (Vertical Convergence R/B      ): Maximum retries exceeded
>VCP code 0x39 (Vertical Convergence M/G      ): Maximum retries exceeded
>VCP code 0x3a (Vertical Linearity            ): Maximum retries exceeded
>VCP code 0x3b (Unknown feature               ): Maximum retries exceeded
>VCP code 0x3c (Vertical Linearity Balance    ): Maximum retries exceeded
>VCP code 0x3d (Unknown feature               ): Maximum retries exceeded
>VCP code 0x3e (Clock phase                   ): Maximum retries exceeded
>VCP code 0x3f (Unknown feature               ): Maximum retries exceeded
>VCP code 0x40 (Horizontal Parallelogram      ): Maximum retries exceeded
>VCP code 0x41 (Vertical Parallelogram        ): Maximum retries exceeded
>VCP code 0x42 (Horizontal Keystone           ): Maximum retries exceeded
>VCP code 0x43 (Vertical Keystone             ): Maximum retries exceeded
>VCP code 0x44 (Rotation                      ): Maximum retries exceeded
>VCP code 0x45 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x46 (Top Corner Flare              ): Maximum retries exceeded
>VCP code 0x47 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x48 (Top Corner Hook               ): Maximum retries exceeded
>VCP code 0x49 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x4a (Bottom Corner Flare           ): Maximum retries exceeded
>VCP code 0x4b (Unknown feature               ): Maximum retries exceeded
>VCP code 0x4c (Bottom Corner Hook            ): Maximum retries exceeded
>VCP code 0x4d (Unknown feature               ): Maximum retries exceeded
>VCP code 0x4e (Unknown feature               ): Maximum retries exceeded
>VCP code 0x4f (Unknown feature               ): Maximum retries exceeded
>VCP code 0x50 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x51 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x52 (Active control                ): Value: 0x00
>VCP code 0x53 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x54 (Performance Preservation      ): Maximum retries exceeded
>VCP code 0x55 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x56 (Horizontal Moire              ): Maximum retries exceeded
>VCP code 0x57 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x58 (Vertical Moire                ): Maximum retries exceeded
>VCP code 0x59 (6 axis saturation: Red        ): Maximum retries exceeded
>VCP code 0x5a (6 axis saturation: Yellow     ): Maximum retries exceeded
>VCP code 0x5b (6 axis saturation: Green      ): Maximum retries exceeded
>VCP code 0x5c (6 axis saturation: Cyan       ): Maximum retries exceeded
>VCP code 0x5d (6 axis saturation: Blue       ): Maximum retries exceeded
>VCP code 0x5e (6 axis saturation: Magenta    ): Maximum retries exceeded
>VCP code 0x5f (Unknown feature               ): Maximum retries exceeded
>VCP code 0x60 (Input Source                  ): Maximum retries exceeded
>VCP code 0x61 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x62 (Audio speaker volume          ): Maximum retries exceeded
>VCP code 0x63 (Speaker Select                ): Maximum retries exceeded
>VCP code 0x64 (Audio: Microphone Volume      ): Maximum retries exceeded
>VCP code 0x65 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x66 (Ambient light sensor          ): Maximum retries exceeded
>VCP code 0x67 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x68 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x69 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x6a (Unknown feature               ): Maximum retries exceeded
>VCP code 0x6b (Backlight Level: White        ): Maximum retries exceeded
>VCP code 0x6c (Video black level: Red        ): Maximum retries exceeded
>VCP code 0x6d (Backlight Level: Red          ): Maximum retries exceeded
>VCP code 0x6e (Video black level: Green      ): Maximum retries exceeded
>VCP code 0x6f (Backlight Level: Green        ): Maximum retries exceeded
>VCP code 0x70 (Video black level: Blue       ): Maximum retries exceeded
>VCP code 0x71 (Backlight Level: Blue         ): Maximum retries exceeded
>VCP code 0x72 (Gamma                         ): SL: 0x00 ,  SH: 0x78
>VCP code 0x76 (Remote Procedure Call         ): Write-only feature
>VCP code 0x77 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x79 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x7a (Adjust Focal Plane            ): Deprecated
>VCP code 0x7b (Unknown feature               ): Maximum retries exceeded
>VCP code 0x7c (Adjust Zoom                   ): Maximum retries exceeded
>VCP code 0x7d (Unknown feature               ): Maximum retries exceeded
>VCP code 0x7e (Trapezoid                     ): Deprecated
>VCP code 0x7f (Unknown feature               ): Maximum retries exceeded
>VCP code 0x80 (Keystone                      ): Deprecated
>VCP code 0x81 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x82 (Horizontal Mirror (Flip)      ): Maximum retries exceeded
>VCP code 0x83 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x84 (Vertical Mirror (Flip)        ): Maximum retries exceeded
>VCP code 0x85 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x86 (Display Scaling               ): Maximum retries exceeded
>VCP code 0x87 (Sharpness                     ): Maximum retries exceeded
>VCP code 0x88 (Velocity Scan Modulation      ): Maximum retries exceeded
>VCP code 0x89 (Unknown feature               ): Maximum retries exceeded
>VCP code 0x8a (Color Saturation              ): Maximum retries exceeded
>VCP code 0x8b (TV Channel Up/Down            ): Write-only feature
>VCP code 0x8c (TV Sharpness                  ): Maximum retries exceeded
>VCP code 0x8d (Audio mute/Screen blank       ): Maximum retries exceeded
>VCP code 0x8e (TV Contrast                   ): Maximum retries exceeded
>VCP code 0x8f (Audio Treble                  ): Maximum retries exceeded
>VCP code 0x90 (Hue                           ): Maximum retries exceeded
>VCP code 0x91 (Audio Bass                    ): Maximum retries exceeded
>VCP code 0x92 (TV Black level/Luminesence    ): Maximum retries exceeded
>VCP code 0x93 (Audio Balance L/R             ): Maximum retries exceeded
>VCP code 0x94 (Audio Processor Mode          ): Maximum retries exceeded
>VCP code 0x95 (Window Position(TL_X)         ): Maximum retries exceeded
>VCP code 0x96 (Window Position(TL_Y)         ): Maximum retries exceeded
>VCP code 0x97 (Window Position(BR_X)         ): Maximum retries exceeded
>VCP code 0x98 (Window Position(BR_Y)         ): Maximum retries exceeded
>VCP code 0x99 (Window control on/off         ): Maximum retries exceeded
>VCP code 0x9a (Window background             ): Maximum retries exceeded
>VCP code 0x9b (6 axis hue control: Red       ): Maximum retries exceeded
>VCP code 0x9c (6 axis hue control: Yellow    ): Maximum retries exceeded
>VCP code 0x9d (6 axis hue control: Green     ): Maximum retries exceeded
>VCP code 0x9e (6 axis hue control: Cyan      ): Maximum retries exceeded
>VCP code 0x9f (6 axis hue control: Blue      ): Maximum retries exceeded
>VCP code 0xa0 (6 axis hue control: Magenta   ): Maximum retries exceeded
>VCP code 0xa1 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xa2 (Auto setup on/off             ): Write-only feature
>VCP code 0xa3 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xa5 (Change the selected window    ): Maximum retries exceeded
>VCP code 0xa6 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xa7 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xa8 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xa9 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xaa (Screen Orientation            ): Maximum retries exceeded
>VCP code 0xab (Unknown feature               ): Maximum retries exceeded
>VCP code 0xac (Horizontal frequency          ): Maximum retries exceeded
>VCP code 0xad (Unknown feature               ): Maximum retries exceeded
>VCP code 0xae (Vertical frequency            ): Maximum retries exceeded
>VCP code 0xaf (Unknown feature               ): Maximum retries exceeded
>VCP code 0xb0 (Settings                      ): Write-only feature
>VCP code 0xb1 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xb2 (Flat panel sub-pixel layout   ): Maximum retries exceeded
>VCP code 0xb3 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xb5 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xb6 (Display technology type       ): LCD (active matrix) (sl=0x03)
>VCP code 0xb7 (Monitor status                ): Maximum retries exceeded
>VCP code 0xb8 (Packet count                  ): Maximum retries exceeded
>VCP code 0xb9 (Monitor X origin              ): Maximum retries exceeded
>VCP code 0xba (Monitor Y origin              ): Maximum retries exceeded
>VCP code 0xbb (Header error count            ): Maximum retries exceeded
>VCP code 0xbc (Body CRC error count          ): Maximum retries exceeded
>VCP code 0xbd (Client ID                     ): Maximum retries exceeded
>VCP code 0xbe (Link control                  ): Maximum retries exceeded
>VCP code 0xbf (Unknown feature               ): Maximum retries exceeded
>VCP code 0xc0 (Display usage time            ): Usage time (hours) = 4871 (0x001307) mh=0x00, ml=0x00, sh=0x13, sl=0x07
>VCP code 0xc1 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xc2 (Display descriptor length     ): Maximum retries exceeded
>VCP code 0xc4 (Enable display of 'display descriptor'): Maximum retries exceeded
>VCP code 0xc5 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xc6 (Application enable key        ): Maximum retries exceeded
>VCP code 0xc7 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xc8 (Display controller type       ): Mfg: Not defined - a manufacturer designed controller (sl=0xff), controller number: mh=0x00, ml=0xc6, sh=0x04
>VCP code 0xc9 (Display firmware level        ): 1.5
>VCP code 0xca (OSD/Button Control            ): SL: 0x02 ,  SH: 0x00
>VCP code 0xcb (Unknown feature               ): Maximum retries exceeded
>VCP code 0xcc (OSD Language                  ): Maximum retries exceeded
>VCP code 0xcd (Status Indicators             ): Maximum retries exceeded
>VCP code 0xce (Auxiliary display size        ): Maximum retries exceeded
>VCP code 0xcf (Auxiliary display data        ): Write-only feature
>VCP code 0xd0 (Output select                 ): Maximum retries exceeded
>VCP code 0xd1 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xd3 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xd4 (Stereo video mode             ): Maximum retries exceeded
>VCP code 0xd5 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xd6 (Power mode                    ): Maximum retries exceeded
>VCP code 0xd7 (Auxiliary power output        ): Maximum retries exceeded
>VCP code 0xd8 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xd9 (Unknown feature               ): Maximum retries exceeded
>VCP code 0xda (Scan mode                     ): Maximum retries exceeded
>VCP code 0xdb (Image Mode                    ): Maximum retries exceeded
>VCP code 0xdc (Display Mode                  ): Maximum retries exceeded
>VCP code 0xdd (Unknown feature               ): Maximum retries exceeded
>VCP code 0xde (Scratch Pad                   ): Maximum retries exceeded
>VCP code 0xdf (VCP Version                   ): 2.2
>VCP code 0xe0 (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x00, sl=0x00, max value =     0, cur value =     0
>VCP code 0xe1 (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x00, sl=0x00, max value =     0, cur value =     0
>VCP code 0xe2 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xe3 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xe4 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xe5 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xe6 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xe7 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xe8 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xe9 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xea (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xeb (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xec (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xed (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xee (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xef (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf0 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf1 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf2 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf3 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf4 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf5 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf6 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf7 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf8 (Manufacturer Specific         ): Maximum retries exceeded
>VCP code 0xf9 (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x00, sl=0x43, max value =     0, cur value =    67
>VCP code 0xfa (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x10, sl=0x0e, max value =     0, cur value =  4110
>VCP code 0xfb (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x00, sl=0x00, max value =     0, cur value =     0
>VCP code 0xfc (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x02, sl=0x07, max value =     0, cur value =   519
>VCP code 0xfd (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x00, sl=0x02, max value =     0, cur value =     2
>VCP code 0xfe (Manufacturer Specific         ): mh=0x00, ml=0x00, sh=0x03, sl=0xae, max value =     0, cur value =   942
>VCP code 0xff (Manufacturer Specific         ): mh=0x60, ml=0x80, sh=0x00, sl=0x00, max value = 24704, cur value =     0
>
>
>Comparing declared capabilities to observed features...
>
>Readable features declared in capabilities string: 02 03 10 12 14 16 18 1a 2e 52 72 b6 c0 c8 c9 ca df
>
>MCCS (VCP) version reported by capabilities: 2.2
>MCCS (VCP) version reported by feature 0xDf: 2.2
>
>All readable features declared in capabilities were found by scanning.
>
>Features found by scanning but not declared as capabilities:
>   Feature x00 - Unknown feature
>   Feature xe0 - Manufacturer Specific
>   Feature xe1 - Manufacturer Specific
>   Feature xf9 - Manufacturer Specific
>   Feature xfa - Manufacturer Specific
>   Feature xfb - Manufacturer Specific
>   Feature xfc - Manufacturer Specific
>   Feature xfd - Manufacturer Specific
>   Feature xfe - Manufacturer Specific
>   Feature xff - 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:   36
>       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:                             36
>   Failed due to max tries exceeded: 207
>   Failed due to fatal error:          0
>   Total attempts:                   243
>
>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:  
>Count   Status Code                          Description
> 3105   DDCRC_INVALID_DATA           (-3004) error parsing data bytes 
>  207   DDCRC_RETRIES                (-3015) maximum retries exceeded  (derived)
>Total errors: 3312
>
>Errors Wrapped in Retry:  
>Count   Status Code                          Description
> 3105   DDCRC_INVALID_DATA           (-3004) error parsing data bytes 
>Total errors: 3105
>
>Sleep Strategy Stats:
>   Total IO events:       6285
>   IO error count:        3312
>   Total sleep events:    6315
>
>   Sleep Event type      Count
>   SE_WRITE_TO_READ       3141
>   SE_POST_OPEN              1
>   SE_POST_WRITE             0
>   SE_POST_READ           3141
>   SE_DDC_NULL               0
>   SE_POST_SAVE_SETTINGS     0
>
>Call Stats:
>   Type                                     Count Millisec  (   Nanosec)
>   write calls       (IE_WRITE)              3141      779  ( 779435317)
>   read calls        (IE_READ)               3141     1194  (1194387097)
>   open file calls   (IE_OPEN)                  1        0  (      9115)
>   close file calls  (IE_CLOSE)                 1        0  (      5681)
>   other I/O calls   (IE_OTHER)                 1        0  (      1535)
>   Totals:                                   6285     1973  (1973838745)
>
>Sleep Call Stats:
>   Total sleep calls:                                 6337
>   Requested sleep time milliseconds :              316850
>   Actual sleep milliseconds (nanosec):             317334  (317334651226)
>
>Elapsed milliseconds since last reset (nanoseconds):316658  (316658933072)
>Total elapsed milliseconds (nanoseconds):           382563  (382563742057)
>
>Skipping invalid display on bus /dev/i2c-19
>
>Display scanning complete.

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

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