Comment # 33 on bug 1173733 from Stefan Dirsch

(In reply to Mister Pend from comment #30)
> (In reply to Stefan Dirsch from comment #28)
> > You're using different NVreg_DeviceFileGID on your machines (not using our
> > default of 33). Also on the broken machine
> > /usr/lib/tmpfiles.d/nvidia-logind-acl-trick.conf is missing completely.
> 
> I'm not sure how, I'm not doing anything out of the ordinary here - drivers
> were installed from NVIDIA repository as per my ansible tasklist (NVIDIA
> repository added 'https://download.nvidia.com/opensuse/leap/15.2', package
> 'x11-video-nvidiaG05' installed via zypper). And yes, that file is missing
> completely on a clean installed machine - I suspect it's presence on the
> working machine is due to driver package variances during it's life before I
> tested the upgrade on it.

Then there is something fishy. 

You must have edited manually /etc/modprobe.d/50-nvidia-default.conf in order
to have a different
NVreg_DeviceFileGID there. 33 is the group ID of video group. That's why we use
it here. Probably it no longer matters since permissions are meanwhile set via
udev/logind (ACLs). So I guess you can ignore this.

/usr/lib/tmpfiles.d/nvidia-logind-acl-trick-G05.conf is created in %post of
nvidia-gfxG05-kmp-default  and only removed in %postun when uninstalled, not
during an update.