Comment # 4 on bug 1027328 from Fabian Vogt

(In reply to Thomas K�nig from comment #3)
> (In reply to Fabian Vogt from comment #2)
> 
> > As you can work around the issue by disabling DPMS, an upstream bug report
> > should have a fairly big chance of success here.
> 
> Hm, thanks. I have submitted the bug report upstream.
> 
> There does not appear to be an NVIDIA graphics driver for my
> system.  Should I simply not be running Tumbleweed with that
> graphics card?

You can try to run it without graphics acceleration by uninstalling
xf86-video-nouveau and using modesetting (the default) instead.
It does not always work, but when it works it usually works well