I also had this problem and the suggested workaround helped solving it. Actually, it additionally solved a delay issue on login screen when recovering from suspension and a delay on xdotool commands. Is it possible to reopen this bug report or should I open a new one?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1825679 Title: Delay/freeze/cpu spike when using the function/media/brightness keys in Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1825679/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
