This bug reoccurred just now for the first time since I installed the patched kernel.
Am currently on ``` Linux floombort 5.8.0-34-generic #37-Ubuntu SMP Thu Dec 10 18:01:14 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ``` And Alt+F2 then 'r' fixed it again. -- 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/1896091 Title: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions Status in linux package in Ubuntu: Triaged Status in linux source package in Groovy: Fix Committed Bug description: == SRU Justification == [Impact] Noise-like lines of graphics corruption when moving windows in Xorg sessions. [Fix] Revert "UBUNTU: SAUCE: drm/i915: Synchronize active and retire callbacks". [Test] Daniel van Vugt confirmed reverting the commit fixes the issue. I can also reproduce the issue on one of my system, I can confirm it fixes the issue too. [Where problems could occur] Race condition the commit solves may appear again. The commit was reverted and replaced by an upstream fix, which is already included in 5.8. So it should be rather safe here. == Original Bug Report == I left my desktop (T480s thinkpad docked to ThinkVision P24h-10) unattended for a while, and then got the error message and now have funny lines on activity, e.g. red lines flashing on top of gnome-shell bar when switching windows, or white blocks/lines around typing text. This is the second or third time it happened, reboot fixes it until the error pops up again. ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: linux-image-5.8.0-19-generic 5.8.0-19.20 ProcVersionSignature: Ubuntu 5.8.0-19.20-generic 5.8.8 Uname: Linux 5.8.0-19-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu45 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: jak 5052 F.... pulseaudio /dev/snd/controlC1: jak 5052 F.... pulseaudio /dev/snd/pcmC1D0p: jak 5052 F...m pulseaudio /dev/snd/controlC0: jak 5052 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: GNOME CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted Date: Thu Sep 17 19:14:11 2020 HibernationDevice: RESUME=none InstallationDate: Installed on 2018-03-14 (917 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180313) MachineType: LENOVO 20L8S02D00 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-19-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.8.0-19-generic N/A linux-backports-modules-5.8.0-19-generic N/A linux-firmware 1.190 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/04/2020 dmi.bios.release: 1.42 dmi.bios.vendor: LENOVO dmi.bios.version: N22ET65W (1.42 ) dmi.board.asset.tag: Not Available dmi.board.name: 20L8S02D00 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: 1.20 dmi.modalias: dmi:bvnLENOVO:bvrN22ET65W(1.42):bd06/04/2020:br1.42:efr1.20:svnLENOVO:pn20L8S02D00:pvrThinkPadT480s:rvnLENOVO:rn20L8S02D00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T480s dmi.product.name: 20L8S02D00 dmi.product.sku: LENOVO_MT_20L8_BU_Think_FM_ThinkPad T480s dmi.product.version: ThinkPad T480s dmi.sys.vendor: LENOVO --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu45 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: jak 5052 F.... pulseaudio /dev/snd/controlC1: jak 5052 F.... pulseaudio /dev/snd/pcmC1D0p: jak 5052 F...m pulseaudio /dev/snd/controlC0: jak 5052 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: GNOME CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted DistroRelease: Ubuntu 20.10 HibernationDevice: RESUME=none InstallationDate: Installed on 2018-03-14 (917 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180313) MachineType: LENOVO 20L8S02D00 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-19-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.8.0-19.20-generic 5.8.8 RelatedPackageVersions: linux-restricted-modules-5.8.0-19-generic N/A linux-backports-modules-5.8.0-19-generic N/A linux-firmware 1.190 Tags: groovy Uname: Linux 5.8.0-19-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip fax input kvm lpadmin lxd plugdev sambashare sbuild sudo _MarkForUpload: True dmi.bios.date: 06/04/2020 dmi.bios.release: 1.42 dmi.bios.vendor: LENOVO dmi.bios.version: N22ET65W (1.42 ) dmi.board.asset.tag: Not Available dmi.board.name: 20L8S02D00 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: 1.20 dmi.modalias: dmi:bvnLENOVO:bvrN22ET65W(1.42):bd06/04/2020:br1.42:efr1.20:svnLENOVO:pn20L8S02D00:pvrThinkPadT480s:rvnLENOVO:rn20L8S02D00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T480s dmi.product.name: 20L8S02D00 dmi.product.sku: LENOVO_MT_20L8_BU_Think_FM_ThinkPad T480s dmi.product.version: ThinkPad T480s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896091/+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
