So as a number of people have already observed, this bug is kind of a showstopper for many using Gnome's magnification feature on a regular basis, and it should definitely be fixed sooner rather than later.
However, looking at the behavior of the bug, I noticed there were no trails when the zoom feature was on and zoomed in. They're only present if the zoom setting is at 1.0 but the zoom feature is on. As a workaround, I wrote a small script that adds some logic to zooming in and out. If the feature is off and a zoom in is requested, the zoom is set to 2.0 and then the zoom feature is turned on. If a zoom out is requested and the updated magnification would be less than 2.0, i.e. fully zoomed out, the new magnification is set and then the feature is disabled. So, if you use the script to zoom in and out, you won't see trails, since the zoom feature will be disabled at max zoom. The script can be found on GitHub here: https://github.com/smythp/gnome-magnifier-mouse-trails-workaround I've provided some usage guidance in the README and added some xbindkeys settings in another file that will replicate the default Gnome zoom in and out shortcuts. I haven't tested it extensively, feel free to contribute or open an issue, though no promises as to quality here. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1872870 Title: When zoom is enabled, mouse pointer leaves square trails on desktop Status in Mutter: Unknown Status in mutter package in Ubuntu: Triaged Bug description: Problem: When you turn on Zoom from the Accessibility menu, the mouse leaves square shaped trails as it moves. Steps to Reproduce: 1. Under the Settings applet's Accessibility menu, turn on Zoom. 2. Observe the mouse cursor leaving little square patterns wherever it goes, obscuring whatever you're trying to work on. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome (not installed) ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue Apr 14 21:50:16 2020 InstallationDate: Installed on 2020-01-09 (96 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 SourcePackage: meta-gnome3 UpgradeStatus: Upgraded to focal on 2020-01-24 (82 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1872870/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
