Bug 160309 sounds similar to this one in that it involves a failure after (apparently) a screensaver kicks on. Perhaps this is a dupe of that bug?
-- machine crashes when screensaver activates https://bugs.launchpad.net/bugs/152050 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
