This is obviously at least 2 or 3 different problems. My problems seem to have cleared up after upgrading to NVIDIA's 295.49 drivers. My SysRq key continued to work even under massive lockup.
Most of us experienced common symptoms: A near complete system freeze with mouse continuing to work implies a unity3d or compiz problem in some way. The only log entries I had that are suggestive any way are likely symptoms of the lockup and system loads in the 40+ range. I think what a lot of us want is guidance as to how to help diagnose a system that's locked up or going to lock up in this way. If there were only a Magic SysRq key that replied back with which process is causing the system to go to hell. I'd reccomend going to a text-console and letting top run constantly. If the system starts getting sluggish you can switch back to the console and see what's sucking up all the CPU/IO time. -- 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 64bit 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
