CPU pipe A FIFO underrun
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Upgraded from Ubuntu 20.04 to 22.04 at the release date.
I get a blinking screen about 2-3 times a day. Dmesg shows the following:
i915 0000:00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
Lenovo Thinkpad T480s connected to Lenovo Thinkpad Basic Docking Station, type 40AG.
I'm not doing anything special when this happens. I've been using the same monitor, dock and cables for several years.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-
ProcVersionSign
Uname: Linux 5.15.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/
/dev/snd/seq: oystein 6832 F.... pipewire
CasperMD5CheckR
CurrentDesktop: ubuntu:GNOME
Date: Tue May 3 14:46:03 2022
EcryptfsInUse: Yes
InstallationDate: Installed on 2021-08-03 (273 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
MachineType: LENOVO 20L8002VMX
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
linux-
linux-
linux-firmware 20220329.
SourcePackage: linux
UpgradeStatus: Upgraded to jammy on 2022-04-21 (11 days ago)
WifiSyslog:
dmi.bios.date: 11/17/2021
dmi.bios.release: 1.49
dmi.bios.vendor: LENOVO
dmi.bios.version: N22ET72W (1.49 )
dmi.board.
dmi.board.name: 20L8002VMX
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.ec.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.family: ThinkPad T480s
dmi.product.name: 20L8002VMX
dmi.product.sku: LENOVO_
dmi.product.
dmi.sys.vendor: LENOVO
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