Ubuntu
gcc-4.8 package

  1. Bug #1750937
  2. Comment #12

Comment 12 for bug 1750937

Revision history for this message
gumbeto (gumbeto) wrote : Re: 4.4.0-116 Kernel update on 2/21 breaks Nvidia drivers (on 14.04 and 16.04)

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 '