I have the same issue with Dell Precision 3541 using Ubuntu 22.04 with Wayland. Video card is NVidia Quadro P620 and I am using propretary drivers with On-demand option.
In my case it is not related with external monitor, it happens with or without an external monitor connected. Sometimes screen start blancking and after moving mouse it stops. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1967727 Title: [Lenovo ThinkPad X260] Random screen blanks with "CPU pipe B FIFO underrun" error Status in linux package in Ubuntu: Incomplete Bug description: On a clean 22.04 install, the screen randomly blanks once in a while for a couple of seconds, then comes back. I see the following message in dmesg when it happens: [ 6614.338572] i915 0000:00:02.0: [drm] *ERROR* CPU pipe B FIFO underrun ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-23-generic 5.15.0-23.23 ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27 Uname: Linux 5.15.0-23-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu80 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: GNOME Date: Mon Apr 4 10:16:27 2022 InstallationDate: Installed on 2022-04-03 (0 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Beta amd64 (20220329.1) MachineType: LENOVO 20F6CTO1WW ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-23-generic root=/dev/mapper/ubuntu-root ro rootflags=subvol=@ quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.15.0-23-generic N/A linux-backports-modules-5.15.0-23-generic N/A linux-firmware 20220329.git681281e4-0ubuntu1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/08/2019 dmi.bios.release: 1.44 dmi.bios.vendor: LENOVO dmi.bios.version: R02ET71W (1.44 ) dmi.board.asset.tag: Not Available dmi.board.name: 20F6CTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.12 dmi.modalias: dmi:bvnLENOVO:bvrR02ET71W(1.44):bd05/08/2019:br1.44:efr1.12:svnLENOVO:pn20F6CTO1WW:pvrThinkPadX260:rvnLENOVO:rn20F6CTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20F6_BU_Think_FM_ThinkPadX260: dmi.product.family: ThinkPad X260 dmi.product.name: 20F6CTO1WW dmi.product.sku: LENOVO_MT_20F6_BU_Think_FM_ThinkPad X260 dmi.product.version: ThinkPad X260 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1967727/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
