Ok, I updated the BIOS to F9 and confirmed with the commands above: F9 03/18/2014
Now nothing other than windows worked. I eventually figured out the BIOS updates reset the BIOS settings, which included enabling the Intel HD Graphics on the processor - which seems to confuse the hell out of ubuntu. After disabling that and playing with the display drivers I'm able to boot with the 42 kernel now. For some reason only the nouveau driver works, using the nvidia driver will give the initial symptoms still: instead of booting to desktop, you get the login screen, but it's not possible to login with any account, you just get returned to the login screen - probably a failure of the desktop system to start. The nouveau driver used to (with kernel 41) cause me issues where it would boot to a black screen roughly 3/4 times. Persistently rebooting would eventually work. I hope that is not still the case, but it's too early to say. I've disabled all updates and I'm going to try to limp along until the next time I upgrade my OS, I'll give a debian a try this time, maybe it will be more stable. Thanks for your help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1528300 Title: Stuck on login screen after updating to 3.19.0-42 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1528300/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
