Public bug reported:
shortly after switching to kernel 5.8.0-50 on Apr 16, I got progressively worse
display scrambling on all programs. Wrote to ubuntuforums.org Apr 19 but found
no resolution. Thinking it was that kernel, I ran on 5.8.0-49 for a day without
problem, then it too started the same display glitches. The problem progressed
so far that I did a fresh system re-install on Apr 23. After, with the default
kernel, 5.8.0-50, scrambling was worse than ever, almost unusable. Fortunately,
the second kernel offered was 5.8.0-43. I have run on that kernel for 3 days
now with no sign of the scrambling issue.
The attached png shows static image corruption examples. The more dramatic
strobing, spontaneous jumping from window to window, window re-mapping, video
corruption etc., I was unable to capture.
Running Ubuntu 20.04.2 LTS
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-43-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 26 21:48:37 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Dell Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
Controller [1028:0622]
InstallationDate: Installed on 2021-04-23 (3 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
MachineType: Dell Inc. Inspiron 3847
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic
root=UUID=0fa2ade9-fdd6-4cfa-a153-0de2be1f39ae ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/29/2015
dmi.bios.release: 65.8
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 088DT1
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA08:bd06/29/2015:br65.8:svnDellInc.:pnInspiron3847:pvr:rvnDellInc.:rn088DT1:rvrA01:cvnDellInc.:ct3:cvr:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: Inspiron 3847
dmi.product.sku: 0622
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug corruption focal ubuntu
** Attachment added: "static corruption examples"
https://bugs.launchpad.net/bugs/1926248/+attachment/5492641/+files/joint%20scramble%20examples.png
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https://bugs.launchpad.net/bugs/1926248
Title:
display scrambled - all packages
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