Desktop zoom makes app windows unresponsive to the mouse in Wayland sessions

[Kai Groner]

I tried to use the gnome magnifier after updating to 19.10 today. After enabling zoom from the control panel, I could no longer send mouse input anywhere other than the desktop. This made it impossible to turn zoom off using the mouse and it doesn't seem to be possible to turn off using keyboard navigation either.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: gnome-shell 3.34.1-1ubuntu1
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 23 00:20:13 2019
DisplayManager: gdm3
InstallationDate: Installed on 2019-06-18 (127 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: mutter-common 3.34.1-1ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to eoan on 2019-10-23 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Confirmed, but there are two workarounds:

 * Use Xorg instead (log into the "Ubuntu" session); or

 * Add zoom on/off controls to the top panel via:
   Settings > Universal Access > Always Show Universal Access Menu = ON

[Daniel van Vugt (vanvugt)]

Upstream fixes:
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/754
https://gitlab.gnome.org/GNOME/mutter/merge_requests/832

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 19.10 (eoan) reached end-of-life on July 17, 2020.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed.