I have been busy lately, but I've searched Launchpad a little and found one other expired bug that I felt confident enough to label a duplicate. I also came across Bug #940564, which while I don't think it's an exact duplicate, seems to have a lot of similarities to this one. That one is currently just marked against the nvidia-graphics-drivers though. Unfortunately, I still haven't noticed any pattern in when a good or bad session occurs, but I'll leave a comment if I do find one. Let me know if there's anything else I can do.
** Attachment added: "Kernel log of a failed suspend attempt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1009312/+attachment/3343321/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1009312 Title: GPU loads unreliably, possible kernel timeout To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1009312/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs