Lockup happened again today with the hangcheck error. It has happened since my last post and now however without the hangcheck error. All I would see is a black screen with a movable mouse cursor. Today I disabled X-Screensaver and it locked up while using FireFox running kernel 3.13.0-46-generic #77-Ubuntu SMP Mon Mar 2 18:23:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux.
Lockup happened again today with the hangcheck error. It has happened since my last post and now however without the hangcheck error. All I would see is a black screen with a movable mouse cursor. Today I disabled X-Screensaver and it locked up while using FireFox running kernel 3.13.0-46-generic #77-Ubuntu SMP Mon Mar 2 18:23:39 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux.