** Changed in: mutter (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1861391
Title:
Full-screen window flickers once when switching to it
Status in mutter package in Ubuntu:
Fix Released
Bug description:
When using *some* applications (I observed it with Emacs and gnome-
terminal) in full-screen mode, they flicker once shortly after
switching to them with e.g. Alt-Tab. To reproduce it:
1. Open Emacs in full-screen mode and one other application (e.g. Chromium).
2. Switch to the other app with Alt-Tab.
3. Switch back to Emacs.
Then I observe:
1. Emacs becomes visible.
2. After a fraction of a second, the Emacs windows is transparent for a very
very short time (flicker).
3. Then, the windows is stable and usable.
Usually, I do not observe this behaviour right from the start. I have
to work with the computer for a couple of minutes to see it. I have
been unable to find out whether a certain action triggers the problem.
However, when it occurs, it does not go away again until the next
restart of the X server.
This is regression that I observe since Ubuntu 19.10.
Changes of the graphics driver does not change anything, however, switching
to Wayland solves the problem.
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 19.10
InstallationDate: Installed on 2019-11-16 (75 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Package: mutter 3.34.1+git20191107-1ubuntu1~19.10.1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 5.3.0-29.31-generic 5.3.13
Tags: eoan
Uname: Linux 5.3.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
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