Ubuntu
nvidia-graphics-drivers-440 package

  1. Bug #1876632
  2. Comment #35

Comment 35 for bug 1876632

Revision history for this message
Moritz Strübe (morty-mt) wrote : Re: [nvidia] Corrupted/missing shell textures when switching users or resuming from suspend

I think we have some options to fix this. Yet, which would be a solution that could be packaged? If I understand https://download.nvidia.com/XFree86/Linux-x86_64/510.54/README/powermanagement.html correctly there are the following options:

Keep the GPU-Memory Running
===========================

Pro:
* Only need to set a kernel module parameter
Con:
* Only works in S2
* Uses more power than necessary (at least if more than 256 MB graphic memory are used)
* Does not work with suspend-to-disk (at least if I understood things right)

Copy Memory to tmpfs
====================

Dump the graphic-memory into tmpfs. I wouldn't suggest using /run, but creating a driver-specific tmpfs that is large enough to hold the graphic memory.

Pro:
* Just works, as the kernel takes care of paging the tmpfs to disk in case of stand-by or suspend-to-disk.
Con:
* Delayed suspend and wakeup
* Unexpected swap-usage -> OOM-Killer might kick in on suspend if there is not enough or no swap.

Get everyone to work around it
==============================

Get all the affected applications to update their video-memory after suspend-to-X.

Pro:
* Does not have any of the Cons of the other solutions
Con:
* Probably very tedious.

Keep it as it is
================

Pro:
* Minimal effort
* Kind of works most of the time.

Con:
* Nobody is really happy.

Comments?