Hi, I made a comment some time ago on what fixed this for me in comment #790:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- intel/+bug/993187/comments/790 Since then, although it has been pretty stable under 3.4.0-030400.201205210521, I was still getting [albeit less frequently] complete freezups that show exactly the same symptoms as I reported before. The following NEW FIX has in contrast been COMPLETELY ROCK SOLID [not a single crash yet] in so far as no hardware freezeups are concerned, and I have been hammering the video display on the main KDE login session. I am also remotely accessing that session through x11vnc, and also run 2 separate NX sessions in the background, all of which are very busy & used interactively. When I used to try running 2 busy NX sessions + an x11vnc session on the main KDE login session, it would not take too long for a complete hardware lockup to occur - within an hour easily with 2 busy NX sessions [I only had good stability with the one x11vnc session to the main KDE desktop under 12.04.x LTS]. I am also running virtualbox guests in the NX and x11vnc sessions [Note that I have 32GB memory so it's viable to run lots of sessions & virtualbox guests]. The FIX is quite simply: upgrade from Kubuntu 12.04.5 LTS -> 14.04.1 LTS (note that as of right now, if you upgrade to 14.04, you will in fact be taken to 14.04.1. Hope this may help others. Thanks Andrew -- 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/ubuntu/+bug/993187/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
