Daniel, Thank you. This actually makes a lot of sense. Also, even if there is no fix, at least we will know what to tell our users if and when issues like this are reported. I am still going to test on Ubuntu on both Gnome and Wayland, and report if there is any difference, so we can keep it all for the record under same bug report.
-- 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/1974471 Title: mouse becomes laggy when fractional scaling is enabled Status in mutter package in Ubuntu: Won't Fix Bug description: Distribution: Ubuntu Budgie 22.04 LTS Kernel: 5.15.0-1007-raspi Package: libmutter-10-0 Architecture: arm64 Version: 42.0-3ubuntu2 5.15.0-1007-raspi On Ubuntu Budgie 22.04 LTS raspberry PI, turning on fractional scaling causes an issue where mouse movement becomes laggy and hard to control. This persists even if a reboot is performed after changing scaling settings. This was tested on Raspberry PI 4 8GB with 3 different mice. 2 USB wired, and one wireless with USB dongle. Same results with 3 mice. Disabling fractional scaling immediately solved the problem. Same tests were performed on Ubuntu Budgie 22.04 on amd64 laptop, with Intel CPU and Nvidia+Intel GPU. There was no issue with mouse performance on amd64 laptop. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: libmutter-10-0 42.0-3ubuntu2 ProcVersionSignature: Ubuntu 5.15.0-1007.7-raspi 5.15.35 Uname: Linux 5.15.0-1007-raspi aarch64 ApportVersion: 2.20.11-0ubuntu82.1 Architecture: arm64 CasperMD5CheckResult: unknown CurrentDesktop: Budgie:GNOME Date: Sat May 21 00:48:09 2022 ImageMediaBuild: 20210416 SourcePackage: mutter UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1974471/+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

