Sorry, my comment dissappeared. I also have (this?) problem with GNOME3 and Ubuntu 14.04 I have Radeon HD5450 and open source radeon driver. It freezes occasionaly (every 30 min or so). I have to wait for half a minute or so and then system becomes responsive again. I tried using proprietary driver and it works - no freezing (altough it is worse than open driver, in many ways :) ).
I can upload any needed log. Regards -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1307723 Title: Ubuntu 14.04 Freezes completely - Power Button Reset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1307723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs