Same here... applied all updates. Nothing helps. In my case it also sometimes leads to corruption of a file in my IDE (IntelliJ's workspace.xml), probably because for some reason IntelliJ keeps this file open at all times while I'm working with it.
The observation of the mouse: I guess this is true. Definitely when you have not been working for a minute, and return back to your PC to continue, and start handling the mouse again. Also no mouse pointer visible anymore. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 completely freezes frequently To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/993187/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs