Public bug reported:
Steps to reproduce:
0. Change the default Alt+Tab to switch windows
1. Have some windows open to switch between them
2. Start Thunderbird
3. Go to Account Settings, which is a child window for account settings (or any
child window of another app)
4. Press Alt+Tab to switch windows
Going through Alt+Tab produces visual artefacts. See the attached
screencast.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.3+git20190124-0ubuntu18.04.1
ProcVersionSignature: Ubuntu 4.18.0-16.17~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-16-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 2 18:35:42 2019
DisplayManager: gdm3
InstallationDate: Installed on 2018-11-29 (123 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic package-from-proposed third-party-packages
** Attachment added: "Screencast_Alt+Tab_visual-artefacts.webm"
https://bugs.launchpad.net/bugs/1822857/+attachment/5252141/+files/Screencast_Alt+Tab_visual-artefacts.webm
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https://bugs.launchpad.net/bugs/1822857
Title:
Alt+Tab produces visual artefacts when a child window is open
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