https://lists.ubuntu.com/archives/kernel-team/2020-November/114803.html
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Groovy)
Status: New => Confirmed
** Changed in: linux (Ubuntu Groovy)
Importance: Undecided => High
** Description changed:
+ == 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.
+ However it was to solve the issue on 5.4, and the race could already be
+ solved on 5.8.
+
+ == 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
+ 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
+ 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
+ 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
+ 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
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https://bugs.launchpad.net/bugs/1896091
Title:
[i915] Noise-like lines of graphics corruption when moving windows in
Xorg sessions
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