I'm facing the same symptoms. First time I realized I have this issue was when playing a game on Stadia through Chrome/Chromium. I am using a special hybrid joystick (movemaster.biz) to replace my keyboard, which consists of two parts. Both devices are connected via usb and are recognized as usb hid keyboards. When steering with the grip of the device and only pressing buttons on the same device everything is okay. But as soon as I press a button on the extension there is a litte lag or stutter/freeze.
I thought it would be an issue with the browser and blamed Chromium, as I haven't had any issues with games played locally. But now I had the same issue with Star Wars Battlefront (from EA) played through Steam + Proton. The output of journalctl showed the same overwriting existing binding of keysym errors as described here: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1857392 That report leads to this report, and from here I got to https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/1858#note_818548 describing a workaround with altering libmutter. I tried that workaround on Ubuntu 20.04.3 LTS, where I at first wasn't able to successfully biuld mutter/libmutter, but it helped to disable the tests by editing debian/rules and add export DEB_BUILD_OPTIONS=nocheck. Installing the altered lib and rebooting didn't get rid of the problem though. Unfortunately the blog post from Osvald doesn't seem to be reachable as the https certificate was revoked. As the freeze happens despite the workaround, I'm not sure if it's the same issue though. Any help would be appreciated as this behavior totally ruins the experience. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1777708 Title: Desktop briefly becomes unresponsive when receiving a keypress from a different device/mapping than the last keypress (in Xorg) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1777708/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
