Ubuntu
gnome-shell package

Screen refresh create flicker with groovy

Bug #1901253 reported by Matthieu Clemenceau on 2020-10-23

This bug report is a duplicate of: Bug #1896091: [i915] Noise-like lines of graphics corruption when moving windows in Xorg sessions. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	gnome-shell (Ubuntu)	New	Undecided	Unassigned

Bug Description

Since I updated to Groovy I noticed screen flickering
It happens when I use terminator with heavy text update like output of apt-update or find /

it also sometimes happen when I get a notification

I was able to capture it with terminator and take a screenshot

I picked gnome-shell because I do't think it is only happening with terminator

It also happens when I move the terminator window around

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: gnome-shell 3.38.1-1ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-23.24-generic 5.8.14
Uname: Linux 5.8.0-23-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 23 16:26:43 2020
DisplayManager: gdm3
InstallationDate: Installed on 2020-01-05 (291 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
RebootRequiredPkgs:
linux-image-5.8.0-25-generic
linux-base
RelatedPackageVersions: mutter-common 3.38.1-1ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to groovy on 2020-10-19 (4 days ago)

Tags:

Revision history for this message

Matthieu Clemenceau (mclemenceau) wrote on 2020-10-23:

Screenshot 2020-10-23 at 4.25.10 PM.png Edit (406.5 KiB, image/png)
Dependencies.txt Edit (20.6 KiB, text/plain; charset="utf-8")
GsettingsChanges.txt Edit (1.7 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ShellJournal.txt Edit (530.4 KiB, text/plain; charset="utf-8")
monitors.xml.txt Edit (1.9 KiB, text/plain; charset="utf-8")

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2020-10-26:

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1896091, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.