I like to add some screenshots to support why I have the idea this is intel related. After login I get a "crash detected" message most of the time, see attachment.
** Attachment added: "Screenshot-ApplicationProblem.png" http://launchpadlibrarian.net/40323920/Screenshot-ApplicationProblem.png -- X freeze - Screen turns black entirely https://bugs.launchpad.net/bugs/529191 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs