Bug#1022165: nvidia-driver: Regression with PowerManagement Support (resume after suspend)

[Tobias Frost]

On Fri, 21 Oct 2022 11:38:43 +0200 Tobias Frost <tobi at debian.org> wrote:

(...) 
> 
> Researching the issue, it *might be* that the 515 version is working again [2] and [3].
> On the same link, wagnerck says, that contrary to the Documentation, it could be that
> setting NVreg_PreserveVideoMemoryAllocations=1 causes this issue. I have not
> tried that yet, but will do after sending this report.
> 
> [2] https://github.com/pop-os/nvidia-graphics-drivers/issues/133
> [3] https://forums.developer.nvidia.com/t/corrupted-graphics-upon-resume-gnome-41-x-org-495-44-driver/194565

Indeed, removing the module parameter NVreg_PreserveVideoMemoryAllocations (and the path where to store),
fixes this for 	510.85.02-5

(I've removed the complete line 
options nvidia NVreg_PreserveVideoMemoryAllocations=1 NVreg_TemporaryFilePath=/var/cache/nvidia
in my /etc/modprobe.d/nvidia-options.conf)

-- 
tobi