> Hey all,
> I am trying to get the nVidia binary driver to work in dom0. Using the
> latest version of it (510.60.02) always ends up with this line in
> followed by X crashing:
> > Failed to allocate push buffer
> Running `nvidia-smi` shows the card is available, kernel modules loaded; I
> can get temperature readouts, for example.
> Tried changing UEFI settings ("discrete" vs "hybrid" mode), tried fiddling
> with kernel parameters (modesetting, iommu), to no avail.
> Not sure what I could try next. Any ideas welcome!
Have you considered using sys-gui-gpu instead?
I have not, for a very specific reason: in the laptop in question, all external
video outputs are hard-wired to the nvidia card. That is, I *cannot* use an
external display *unless* I get the nvidia card to work, somehow.
I had *some* small progress: if I go the nouveau route (with
nouveau.modeset=1), I get an external display recognized and configured in X
now. I can move my mouse to it. I cannot display any actual windows on it.
Binary drivers in dom0 are a bad idea, both from a security and reliability
I am well aware of that. But as far as security is concerned, GPU passthrough
has its own problems. It's turtles all the way down!
In particular, dom0 has an old version of both X11 and Mesa, which may well
be incompatible with the blob driver.
That's true. I am going to try some older ones. Already tried 495.46, got a
Failed to allocate shared surface
I guess I should try to figure out which binary driver was the newest when the
dom0 versions of xorg and Mesa were released.
Alternatively, if your computer has an integrated Intel GPU, you could
That's what I've been using, but that leaves me without the ability to use
Nouveau might also be an option, if it supports your card.
It doesn't seem to (see above).