I believe I had the same issue, my M91p would freeze after some random time from boot, however its not an immediate hang, the mouse cursor goes on a go slow, then disappears over a few seconds, keyboard and mouse are then totally unresponsive including ctrl-alt-f1 etc. However I *think* its just the UI thats locked. I've done 2 things which appear to have resolved my problem (yeah I know bad practice, one change at a time) installed the latest proprietary nvidia driver (I have the NVS 300 card) I assume you all do too. And I set the BIOS video selection to PEG (pci express graphics?) rather than auto. I know I had to do something similar with my dual card Lenovo W520 laptop with similar symptoms. Can you confirm if this is the same problem and if this works for you?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1228109 Title: [Lenovo ThinkCentre M91p] System freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1228109/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
