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
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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)
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