The same happened to me. I did the upgrade 15.10->16.04 while my laptop was docked into the "HP 2013 UltraSlim-Dockingstation" and at some point during the upgrade my screen went black and so I decided to reboot. And from this point on I could not get my 16.04 system working anymore so I decided to do a 16.04 installation from scratch. Now I can at least work on my laptop standalone but as soon as I try to dock I get the exception in syslog shown above. The weird thing is that in the Display Manager dialog my external Acer Monitor is detected but no output gets displayed. One further "famous" error I get in syslog is: "radeon 0000:03:00.0: VCE init error (-110)" - so hopefully this gets solved as well with the upgrade. Will try the kernel upgrade asap.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1573648 Title: 16.04 -> AMD APU via VGA gives blank screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1573648/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
