Official support for Ubuntu 11.10 "Oneiric Ocelot" ended on May 9, 2013. If this issue is still occurring on Ubuntu 13.04 "Raring Ringtail" please file a new bug so that we can get a fresh set of logs and system info.
Also, if the issue is still occurring on Ubuntu 13.04 "Raring Ringtail" it is possible that you are affected by the bug reported at https://bugs.freedesktop.org/show_bug.cgi?id=63263 which has been fixed upstream in the nouveau driver. ** Bug watch added: freedesktop.org Bugzilla #63263 https://bugs.freedesktop.org/show_bug.cgi?id=63263 ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/877626 Title: xserver crashes after playing video To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/877626/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs