As per the last comment by Emanuele Cisbani (cisba), I re-installed 4.10.0-37 (the original source of video problems with synaptic.
Then did: sudo apt install --reinstall i915-4.11.6-4.10.0-dkms And the problem is now fixed. :-) I also ran the intel Graphics Update which didn't perform any actual updates - none needed, [SOLVED] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1723174 Title: Intel graphics problems on kernel 4.10.0-37-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1723174/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs