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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2018448

Title:
  Flickering screen on lenovo x1 carbon 10th, fault errors in dmesg

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  in lunar (haven't tried others yet), the laptop screen flickers every few 
minutes, and I get these errors in dmesg when that happens:
  [qui mai  4 22:07:56 2023] i915 0000:00:02.0: [drm] *ERROR* Fault errors on 
pipe A: 0x00000080
  [qui mai  4 22:07:56 2023] i915 0000:00:02.0: [drm] *ERROR* Fault errors on 
pipe A: 0x00000080
  [qui mai  4 22:07:56 2023] i915 0000:00:02.0: [drm] *ERROR* Fault errors on 
pipe A: 0x00000080

  googling found some hits, but this one seems promising, as it's
  recent, and has the exact same error message:

  https://www.spinics.net/lists/intel-gfx/msg317397.html

  If that is not applied in the lunar kernel, and someone builds me one
  with the patch applied, I can easily try it.

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: linux-image-6.2.0-20-generic 6.2.0-20.20
  ProcVersionSignature: Ubuntu 6.2.0-20.20-generic 6.2.6
  Uname: Linux 6.2.0-20-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.26.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  andreas    4727 F.... pipewire
                        andreas    4730 F.... wireplumber
   /dev/snd/seq:        andreas    4727 F.... pipewire
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Thu May  4 07:51:38 2023
  MachineType: LENOVO 21CC0093BR
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.2.0-20-generic 
root=/dev/mapper/vg0-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-6.2.0-20-generic N/A
   linux-backports-modules-6.2.0-20-generic  N/A
   linux-firmware                            20230323.gitbcdcfbcf-0ubuntu1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   
  dmi.bios.date: 03/02/2023
  dmi.bios.release: 1.37
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N3AET72W (1.37 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 21CC0093BR
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0T76530 WIN
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.18
  dmi.modalias: 
dmi:bvnLENOVO:bvrN3AET72W(1.37):bd03/02/2023:br1.37:efr1.18:svnLENOVO:pn21CC0093BR:pvrThinkPadX1CarbonGen10:rvnLENOVO:rn21CC0093BR:rvrSDK0T76530WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21CC_BU_Think_FM_ThinkPadX1CarbonGen10:
  dmi.product.family: ThinkPad X1 Carbon Gen 10
  dmi.product.name: 21CC0093BR
  dmi.product.sku: LENOVO_MT_21CC_BU_Think_FM_ThinkPad X1 Carbon Gen 10
  dmi.product.version: ThinkPad X1 Carbon Gen 10
  dmi.sys.vendor: LENOVO

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