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After updating to (K)ubuntu 22.04, I see user interface glitches in GTK
application.
Most obviously affected is Gimp, but Evolution and Eclipse IDE are
affected, too.
The glitches don't appear on a notebook with Intel graphics, so maybe
the problem is caused by a weird interaction between the AMDGPU X.Org
driver (I use a Radeon RX5600XT) and GTK.
But as the KDE desktop itself isn't affected and only GTK application
show these glitches, I think it's not a general problem with AMDGPU.
I also booted both Kubunutu and Ubuntu live images and installed Gimp:
The effect show up there, too. So it's than a problem of my actual
installation.
I will upload some Gimp screenshots, so you can see what I mean...
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: libcairo2 1.16.0-5ubuntu2
ProcVersionSignature: Ubuntu 5.15.0-39.42-generic 5.15.35
Uname: Linux 5.15.0-39-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Fri Jun 17 12:36:26 2022
InstallationDate: Installed on 2022-04-27 (50 days ago)
InstallationMedia: Kubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64
(20220419)
SourcePackage: cairo
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: cairo (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy
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UI glitches in GTK application with AMDGPU
https://bugs.launchpad.net/bugs/1979053
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