[1.] One line summary of the problem: Switching from an X VT to a Mir VT with Intel graphics causes heavy black flickering. [2.] Full description of the problem/report: This is a regression caused by https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c51f71679042a5f388d9580ffbede14c897f1e86. It still occurs with the current master head at https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e36f014edff70fc02b3d3d79cead1d58f289332e as of February 3, 2015. As root, run the mir_demo_server from the Mir project located at https://code.launchpad.net/~mir-team/mir/development-branch on VT 1. Switch back to a VT running X, which is VT 7 on my Ubuntu machine. Switch back to VT 1. The Mir server will flicker heavily, both screen and pointer, which it did not do until the above merge commit. [3.] Keywords (i.e., modules, networking, kernel): [4.] Kernel version (from /proc/version): Linux version 3.19.0-rc7-custom+ (root@attente) (gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu2) ) #1 SMP Tue Feb 3 11:38:45 CET 2015 [5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt) [6.] A small shell script or example program which triggers the problem (if possible) Please see the mir_demo_server program from the Mir project. [7.] Environment Description: Ubuntu Vivid Vervet (development branch) Release: 15.04 [7.1.] Software (add the output of the ver_linux script here) Linux attente 3.19.0-rc7-custom+ #1 SMP Tue Feb 3 11:38:45 CET 2015 x86_64 x86_64 x86_64 GNU/Linux Gnu C 4.9.2 Gnu make 4.0 binutils 2.25 util-linux 2.25.2 mount debug module-init-tools 18 e2fsprogs 1.42.12 pcmciautils 018 PPP 2.4.6 Linux C Library 2.19 Dynamic linker (ldd) 2.19 Procps 3.3.9 Net-tools 1.60 Kbd 1.15.5 Sh-utils 8.23 wireless-tools 30 Modules Loaded ctr ccm nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables intel_powerclamp coretemp arc4 kvm_intel kvm iwldvm mac80211 serio_raw iwlwifi snd_hda_codec_hdmi intel_ips snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel snd_hda_controller btusb snd_hda_codec thinkpad_acpi nvram snd_seq_midi snd_hwdep cfg80211 snd_seq_midi_event snd_pcm snd_rawmidi rfcomm shpchp mei_me mei bnep lpc_ich snd_seq bluetooth snd_seq_device snd_timer snd soundcore mac_hid parport_pc ppdev lp parport binfmt_misc dm_crypt crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel i915 aes_x86_64 lrw gf128mul glue_helper ablk_helper i2c_algo_bit cryptd drm_kms_helper e1000e drm ptp psmouse ahci pps_core libahci wmi video [7.2.] Processor information (from /proc/cpuinfo): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 2 microcode : 0x9 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes 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 smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat dtherm tpr_shadow vnmi flexpriority ept vpid bugs : bogomips : 4788.18 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 2 microcode : 0x9 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes 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 smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat dtherm tpr_shadow vnmi flexpriority ept vpid bugs : bogomips : 4788.18 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 2 microcode : 0x9 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 2 apicid : 4 initial apicid : 4 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes 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 smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat dtherm tpr_shadow vnmi flexpriority ept vpid bugs : bogomips : 4788.18 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 37 model name : Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz stepping : 2 microcode : 0x9 cpu MHz : 1199.000 cache size : 3072 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 2 apicid : 5 initial apicid : 5 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes 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 smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt aes lahf_lm ida arat dtherm tpr_shadow vnmi flexpriority ept vpid bugs : bogomips : 4788.18 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: [7.3.] Module information (from /proc/modules): ctr 13049 2 - Live 0x0000000000000000 ccm 17731 2 - Live 0x0000000000000000 nf_conntrack_ipv4 14806 0 - Live 0x0000000000000000 nf_defrag_ipv4 12758 1 nf_conntrack_ipv4, Live 0x0000000000000000 xt_conntrack 12760 0 - Live 0x0000000000000000 nf_conntrack 100951 2 nf_conntrack_ipv4,xt_conntrack, Live 0x0000000000000000 ipt_REJECT 12541 0 - Live 0x0000000000000000 nf_reject_ipv4 13183 1 ipt_REJECT, Live 0x0000000000000000 xt_CHECKSUM 12549 1 - Live 0x0000000000000000 iptable_mangle 12695 1 - Live 0x0000000000000000 xt_tcpudp 12884 5 - Live 0x0000000000000000 bridge 109026 0 - Live 0x0000000000000000 stp 12976 1 bridge, Live 0x0000000000000000 llc 14396 2 bridge,stp, Live 0x0000000000000000 iptable_filter 12810 1 - Live 0x0000000000000000 ip_tables 27240 2 iptable_mangle,iptable_filter, Live 0x0000000000000000 x_tables 34052 7 xt_conntrack,ipt_REJECT,xt_CHECKSUM,iptable_mangle,xt_tcpudp,iptable_filter,ip_tables, Live 0x0000000000000000 intel_powerclamp 18786 0 - Live 0x0000000000000000 coretemp 13441 0 - Live 0x0000000000000000 arc4 12608 2 - Live 0x0000000000000000 kvm_intel 148428 0 - Live 0x0000000000000000 kvm 475911 1 kvm_intel, Live 0x0000000000000000 iwldvm 236520 0 - Live 0x0000000000000000 mac80211 715426 1 iwldvm, Live 0x0000000000000000 serio_raw 13434 0 - Live 0x0000000000000000 iwlwifi 194633 1 iwldvm, Live 0x0000000000000000 snd_hda_codec_hdmi 51974 1 - Live 0x0000000000000000 intel_ips 18484 0 - Live 0x0000000000000000 snd_hda_codec_conexant 23064 1 - Live 0x0000000000000000 snd_hda_codec_generic 68875 1 snd_hda_codec_conexant, Live 0x0000000000000000 snd_hda_intel 30520 3 - Live 0x0000000000000000 snd_hda_controller 31872 1 snd_hda_intel, Live 0x0000000000000000 btusb 32376 0 - Live 0x0000000000000000 snd_hda_codec 139421 5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller, Live 0x0000000000000000 thinkpad_acpi 85391 1 - Live 0x0000000000000000 nvram 14362 1 thinkpad_acpi, Live 0x0000000000000000 snd_seq_midi 13564 0 - Live 0x0000000000000000 snd_hwdep 17698 1 snd_hda_codec, Live 0x0000000000000000 cfg80211 535271 3 iwldvm,mac80211,iwlwifi, Live 0x0000000000000000 snd_seq_midi_event 14899 1 snd_seq_midi, Live 0x0000000000000000 snd_pcm 105485 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller,snd_hda_codec, Live 0x0000000000000000 snd_rawmidi 30876 1 snd_seq_midi, Live 0x0000000000000000 rfcomm 69461 12 - Live 0x0000000000000000 shpchp 37040 0 - Live 0x0000000000000000 mei_me 19659 0 - Live 0x0000000000000000 mei 88330 1 mei_me, Live 0x0000000000000000 bnep 19543 2 - Live 0x0000000000000000 lpc_ich 21093 0 - Live 0x0000000000000000 snd_seq 67178 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000 bluetooth 488615 22 btusb,rfcomm,bnep, Live 0x0000000000000000 snd_seq_device 14878 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000 snd_timer 29458 2 snd_pcm,snd_seq, Live 0x0000000000000000 snd 87611 18 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,thinkpad_acpi,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_seq_device,snd_timer, Live 0x0000000000000000 soundcore 15052 2 snd_hda_codec,snd, Live 0x0000000000000000 mac_hid 13227 0 - Live 0x0000000000000000 parport_pc 32741 0 - Live 0x0000000000000000 ppdev 17635 0 - Live 0x0000000000000000 lp 17759 0 - Live 0x0000000000000000 parport 42264 3 parport_pc,ppdev,lp, Live 0x0000000000000000 binfmt_misc 18035 1 - Live 0x0000000000000000 dm_crypt 23133 2 - Live 0x0000000000000000 crct10dif_pclmul 14307 0 - Live 0x0000000000000000 crc32_pclmul 13133 0 - Live 0x0000000000000000 ghash_clmulni_intel 13230 0 - Live 0x0000000000000000 aesni_intel 169590 3362 - Live 0x0000000000000000 i915 1051519 8 - Live 0x0000000000000000 aes_x86_64 17131 1 aesni_intel, Live 0x0000000000000000 lrw 13287 1 aesni_intel, Live 0x0000000000000000 gf128mul 14951 1 lrw, Live 0x0000000000000000 glue_helper 13944 1 aesni_intel, Live 0x0000000000000000 ablk_helper 13597 1 aesni_intel, Live 0x0000000000000000 i2c_algo_bit 13406 1 i915, Live 0x0000000000000000 cryptd 20360 1681 ghash_clmulni_intel,aesni_intel,ablk_helper, Live 0x0000000000000000 drm_kms_helper 121899 1 i915, Live 0x0000000000000000 e1000e 234569 0 - Live 0x0000000000000000 drm 335077 5 i915,drm_kms_helper, Live 0x0000000000000000 ptp 19395 1 e1000e, Live 0x0000000000000000 psmouse 111664 0 - Live 0x0000000000000000 ahci 34019 2 - Live 0x0000000000000000 pps_core 19333 1 ptp, Live 0x0000000000000000 libahci 32190 1 ahci, Live 0x0000000000000000 wmi 19193 0 - Live 0x0000000000000000 video 20271 1 i915, Live 0x0000000000000000 [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) 0000-0cf7 : PCI Bus 0000:00 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0061-0061 : PNP0800:00 0062-0062 : PNP0C09:00 0062-0062 : EC data 0064-0064 : keyboard 0066-0066 : PNP0C09:00 0066-0066 : EC cmd 0070-0071 : rtc0 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 00f0-00f0 : PNP0C04:00 03c0-03df : vesafb 0800-080f : pnp 00:01 0cf8-0cff : PCI conf1 0d00-ffff : PCI Bus 0000:00 1000-1003 : ACPI PM1a_EVT_BLK 1004-1005 : ACPI PM1a_CNT_BLK 1008-100b : ACPI PM_TMR 1010-1015 : ACPI CPU throttle 1020-102f : ACPI GPE0_BLK 1030-1033 : iTCO_wdt 1050-1050 : ACPI PM2_CNT_BLK 1060-107f : iTCO_wdt 1180-11ff : pnp 00:01 15e0-15ef : pnp 00:01 1600-1641 : pnp 00:01 164e-164f : pnp 00:01 1800-1807 : 0000:00:02.0 1808-180f : 0000:00:16.3 1808-180f : serial 1810-1813 : 0000:00:1f.2 1810-1813 : ahci 1814-1817 : 0000:00:1f.2 1814-1817 : ahci 1818-181f : 0000:00:1f.2 1818-181f : ahci 1820-183f : 0000:00:19.0 1840-185f : 0000:00:1f.2 1840-185f : ahci 1860-1867 : 0000:00:1f.2 1860-1867 : ahci 1880-189f : 0000:00:1f.3 2000-2fff : PCI Bus 0000:05 00000000-00000fff : reserved 00001000-0009e7ff : System RAM 0009e800-0009ffff : reserved 000a0000-000bffff : PCI Bus 0000:00 000c0000-000c7fff : Video ROM 000c8000-000cbfff : pnp 00:00 000cc000-000cffff : pnp 00:00 000d0000-000d0fff : Adapter ROM 000d1000-000d1fff : Adapter ROM 000d2000-000d3fff : reserved 000d4000-000d7fff : PCI Bus 0000:00 000d8000-000dbfff : PCI Bus 0000:00 000dc000-000fffff : reserved 000e0000-000effff : Extension ROM 000f0000-000fffff : System ROM 00100000-bb27bfff : System RAM 01000000-017be6e0 : Kernel code 017be6e1-01d341ff : Kernel data 01e9c000-01fe0fff : Kernel bss bb27c000-bb281fff : reserved bb282000-bb362fff : System RAM bb363000-bb374fff : reserved bb375000-bb3f5fff : ACPI Non-volatile Storage bb3f6000-bb40efff : reserved bb40f000-bb46efff : System RAM bb46f000-bb667fff : reserved bb668000-bb6e7fff : ACPI Non-volatile Storage bb6e8000-bb70efff : reserved bb70f000-bb716fff : System RAM bb717000-bb71efff : reserved bb71f000-bb76afff : System RAM bb76b000-bb776fff : ACPI Non-volatile Storage bb777000-bb779fff : ACPI Tables bb77a000-bb780fff : ACPI Non-volatile Storage bb781000-bb781fff : ACPI Tables bb782000-bb78afff : ACPI Non-volatile Storage bb78b000-bb78bfff : ACPI Tables bb78c000-bb79efff : ACPI Non-volatile Storage bb79f000-bb7fefff : ACPI Tables bb7ff000-bb7fffff : System RAM bb800000-bfffffff : reserved be000000-bfffffff : Graphics Stolen Memory c0000000-febfffff : PCI Bus 0000:00 c0000000-c0000fff : Intel Flush Page d0000000-dfffffff : 0000:00:02.0 e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff] e0000000-efffffff : reserved e0000000-efffffff : pnp 00:01 f0000000-f1ffffff : PCI Bus 0000:05 f2000000-f23fffff : 0000:00:02.0 f2400000-f24fffff : PCI Bus 0000:02 f2400000-f2401fff : 0000:02:00.0 f2400000-f2401fff : iwlwifi f2500000-f251ffff : 0000:00:19.0 f2500000-f251ffff : e1000e f2520000-f2523fff : 0000:00:1b.0 f2520000-f2523fff : ICH HD audio f2524000-f2524fff : 0000:00:16.3 f2525000-f2525fff : 0000:00:19.0 f2525000-f2525fff : e1000e f2526000-f2526fff : 0000:00:1f.6 f2526000-f2526fff : ips thermal sensor f2727000-f27277ff : 0000:00:1f.2 f2727000-f27277ff : ahci f2727800-f272780f : 0000:00:16.0 f2727800-f272780f : mei_me f2728000-f27283ff : 0000:00:1a.0 f2728000-f27283ff : ehci_hcd f2728400-f27287ff : 0000:00:1d.0 f2728400-f27287ff : ehci_hcd f2728800-f27288ff : 0000:00:1f.3 f2800000-f28fffff : PCI Bus 0000:05 feaff000-feafffff : reserved fec00000-fec0ffff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0 fed00000-fed003ff : reserved fed00000-fed003ff : PNP0103:00 fed10000-fed13fff : pnp 00:01 fed18000-fed18fff : pnp 00:01 fed19000-fed19fff : pnp 00:01 fed1c000-fed8ffff : reserved fed1c000-fed1ffff : pnp 00:01 fed1f410-fed1f414 : iTCO_wdt fed45000-fed4bfff : pnp 00:01 fee00000-fee00fff : Local APIC fee00000-fee00fff : reserved ff000000-ffffffff : reserved 100000000-1fbffffff : System RAM 200000000-23bffffff : System RAM [7.5.] PCI information ('lspci -vvv' as root) 00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02) Subsystem: Lenovo Device 2193 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: agpgart-intel 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device 215a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 26 Region 0: Memory at f2000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 1800 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0f00c Data: 41d1 Capabilities: [d0] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [a4] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: i915 00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06) Subsystem: Lenovo Device 215f Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 27 Region 0: Memory at f2727800 (64-bit, non-prefetchable) [size=16] Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0f00c Data: 41e1 Kernel driver in use: mei_me 00:16.3 Serial controller: Intel Corporation 5 Series/3400 Series Chipset KT Controller (rev 06) (prog-if 02 [16550]) Subsystem: Lenovo Device 2162 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin B routed to IRQ 17 Region 0: I/O ports at 1808 [size=8] Region 1: Memory at f2524000 (32-bit, non-prefetchable) [size=4K] Capabilities: [c8] Power Management version 3 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Kernel driver in use: serial 00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06) Subsystem: Lenovo Device 2153 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 25 Region 0: Memory at f2500000 (32-bit, non-prefetchable) [size=128K] Region 1: Memory at f2525000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at 1820 [size=32] Capabilities: [c8] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME- Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0200c Data: 4162 Capabilities: [e0] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: e1000e 00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) (prog-if 20 [EHCI]) Subsystem: Lenovo Device 2163 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 23 Region 0: Memory at f2728000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: ehci-pci 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06) Subsystem: Lenovo Device 215e Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin B routed to IRQ 28 Region 0: Memory at f2520000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0f00c Data: 4122 Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- Capabilities: [100 v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 Arb: Fixed- WRR32- WRR64- WRR128- Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01 Status: NegoPending- InProgress- VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=1 ArbSelect=Fixed TC/VC=02 Status: NegoPending- InProgress- Capabilities: [130 v1] Root Complex Link Desc: PortNumber=0f ComponentID=00 EltType=Config Link0: Desc: TargetPort=00 TargetComponent=00 AssocRCRB- LinkType=MemMapped LinkValid+ Addr: 00000000fed1c000 Kernel driver in use: snd_hda_intel 00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=0d, subordinate=0d, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #0, PowerLimit 10.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Lenovo Device 2164 Capabilities: [a0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: pcieport 00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=05, subordinate=0c, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: f0000000-f1ffffff Prefetchable memory behind bridge: 00000000f2800000-00000000f28fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #4, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+ Slot #3, PowerLimit 10.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet+ CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Lenovo Device 2164 Capabilities: [a0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: pcieport 00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: f2400000-f24fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #5, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <256ns, L1 <4us ClockPM- Surprise- LLActRep+ BwNot- LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #4, PowerLimit 10.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock- Changed: MRL- PresDet+ LinkState+ RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Lenovo Device 2164 Capabilities: [a0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: pcieport 00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) (prog-if 20 [EHCI]) Subsystem: Lenovo Device 2163 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 19 Region 0: Memory at f2728400 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [58] Debug port: BAR=1 offset=00a0 Capabilities: [98] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: ehci-pci 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6) (prog-if 01 [Subtractive decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Bus: primary=00, secondary=0e, subordinate=0e, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [50] Subsystem: Lenovo Device 2165 00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06) Subsystem: Lenovo Device 2166 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: [e0] Vendor Specific Information: Len=10 <?> Kernel driver in use: lpc_ich 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06) (prog-if 01 [AHCI 1.0]) Subsystem: Lenovo Device 2168 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 24 Region 0: I/O ports at 1860 [size=8] Region 1: I/O ports at 1814 [size=4] Region 2: I/O ports at 1818 [size=8] Region 3: I/O ports at 1810 [size=4] Region 4: I/O ports at 1840 [size=32] Region 5: Memory at f2727000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0c00c Data: 41b1 Capabilities: [70] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004 Capabilities: [b0] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: ahci 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06) Subsystem: Lenovo Device 2167 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 11 Region 0: Memory at f2728800 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at 1880 [size=32] 00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06) Subsystem: Lenovo Device 2190 Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin D routed to IRQ 19 Region 0: Memory at f2526000 (64-bit, non-prefetchable) [size=4K] Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Kernel driver in use: intel ips 02:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 29 Region 0: Memory at f2400000 (64-bit, non-prefetchable) [size=8K] Capabilities: [c8] Power Management version 3 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0100c Data: 4142 Capabilities: [e0] Express (v1) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <128ns, L1 <32us ClockPM+ Surprise- LLActRep- BwNot- LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn- Capabilities: [140 v1] Device Serial Number 00-24-d7-ff-ff-09-dc-70 Kernel driver in use: iwlwifi ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02) Subsystem: Lenovo Device 2196 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02) Subsystem: Lenovo Device 2196 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02) Subsystem: Lenovo Device 2196 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 ff:02.1 Host bridge: Intel Corporation 1st Generation Core Processor QPI Physical 0 (rev 02) Subsystem: Lenovo Device 2196 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 ff:02.2 Host bridge: Intel Corporation 1st Generation Core Processor Reserved (rev 02) Subsystem: Lenovo Device 2196 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 ff:02.3 Host bridge: Intel Corporation 1st Generation Core Processor Reserved (rev 02) Subsystem: Lenovo Device 2196 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 [7.6.] SCSI information (from /proc/scsi/scsi) Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: Samsung SSD 840 Rev: BB0Q Type: Direct-Access ANSI SCSI revision: 05 [7.7.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant): [X.] Other notes, patches, fixes, workarounds: The downstream Ubuntu bug report is https://bugs.launchpad.net/mir/+bug/1409133. This problem specifically occurs when switching from a VT running X to a VT running Mir. Switching to a TTY VT to a VT running Mir does not result in the flickering.
Please attach a drm.debug=0xf dmesg from across the VT switch. Something like: In X, "echo 0xf > /sys/module/drm/parameters/debug ; sleep 10; echo 0 > /sys/module/drm/parameters/debug" VT switch to Mir wait 10 second to capture the flicker VT switch to X dmesg && attach
Created attachment 113111 [details] DRM debug log
Probably a duplicate of bug 90508. Could you give the patch referenced there a try?
Created attachment 116362 [details] dmesg.txt (In reply to Ander Conselvan de Oliveira from comment #3) > Probably a duplicate of bug 90508. Could you give the patch referenced there > a try? Bug #90508 is fixed in kernel-4.0.4-301. I'm using kernel-4.0.4-303 and I still got that issue. Fedora 22 Workstation, x86_64. After VT switch to X, I got this: [ 5427.787710] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
Francesco, please open a separate bug report and include dmesg with drm.debug=0xe from boot to the point where you get the FIFO underrun.
(In reply to Ander Conselvan de Oliveira from comment #5) > Francesco, please open a separate bug report and include dmesg with > drm.debug=0xe from boot to the point where you get the FIFO underrun. Done. Here's the link (in the case they could be related somehow): https://bugs.freedesktop.org/show_bug.cgi?id=90896
Please try kernel v4.4.
Very old, still valid issue?
Due to the lack of response this bug will be closed, if the problem still occurs please open a new bug with updated logs, make sure the latest kernel is been used as well.
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