Same thing here on 16.04, with nvidia driver 384.111. Kernel 4.4.0-112: no problems kernel 4.4.0-116: Low res and can't login on graphical mode.
I have tried to uninstall and reinstall nvidia drivers to no effect. I did a diff for dmesg output on both cases. The relevant bits are: > Spectre V2 mitigation: Mitigation: Full generic retpoline > Spectre V2 mitigation: Speculation control IBPB not-supported IBRS > not-supported and < nvidia: module license 'NVIDIA' taints kernel. < Disabling lock debugging due to kernel taint < nvidia: module verification failed: signature and/or required key missing - tainting kernel --- > nvidia: version magic '4.4.0-116-generic SMP mod_unload modversions ' should > be '4.4.0-116-generic SMP mod_unload modversions retpoline ' > nvidia: version magic '4.4.0-116-generic SMP mod_unload modversions ' should > be '4.4.0-116-generic SMP mod_unload modversions retpoline ' ** Also affects: nvidia-graphics-drivers-384 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750937 Title: 4.4.0-116 Kernel update on 2/21 breaks Nvidia drivers (on 14.04 and 16.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1750937/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs