In my case, both screen and keyboard freeze completely (even SysRq don't work). Once I left my PC frozen for an hour, and no avail. Once it happened while watching video. Sound was looped; some a half of a second was being repeated. Then in several minutes it stopped. I noticed the increasing of CPU load while freezing, for the cooler is rotating much faster at the moments. I'm using Ubuntu 13.10 after upgrading from 13.04. Previously, I haven't noticed anything like this.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1184451 Title: Ubuntu 13.10 random screen freeze while Normal OS activites To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1184451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs