I have the same symptoms are a similar graphic card. If I disable the Unity plugin in CSM (and enabled awn to have a dock) everything is back to normal. So it looks like a unity issue.
It's hard to reproduce since it doesn't happen at boot time but after I spend some time with the machine. Disabling and enabling Unity in CSM seems to help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/831202 Title: high cpu use with two monitors To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/831202/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
