Thank you for your bug. What version of Ubuntu do you use? What window manager do you use? Do you use a composite manager? Can you still switch to a command line with ctrl-alt-F1 when that happens? Do you have anything to /var/log/messages /var/log/syslog or /var/log/Xorg.0.log about that?
** Changed in: gnome-media (Ubuntu) Sourcepackagename: gnome-media => control-center Importance: Undecided => Medium Assignee: (unassigned) => Ubuntu Desktop Bugs Status: Unconfirmed => Needs Info -- When modifying the volume with the keyboard, Ubuntu sometimes freezes https://launchpad.net/bugs/85875 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs