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Re: [Xen-users] GTX 670 Tips?

On Sun, Oct 27, 2013 at 5:35 AM, Gordan Bobic <gordan@xxxxxxxxxx> wrote:
On 10/27/2013 07:32 AM, Casey DeLorme wrote:
  I'm pretty sure gfx_passthru=1 doesn't work without additional
  patches to do things like load and execute the VBIOS in domU.

Yeah I saw the flag mentioned, but wasn't sure if it was in the context
of "windows only" or linux also. ÂFrom the sound of things that flag
works with qemu traditional only, with modded cards and no patches.

I never tried anything but qemu-traditional, and I don't use gfx_passthru=1. I don't see a good reason for adding extra complication to a setup that is already very fragile.

I thought primary passthru could not be acheived without it, but maybe I was wrong? ÂIt uses the nVidia card when the nouveau graphics are running, but once I install the nvidia drivers it seems to fallback to the emulated graphics.

  Remind me - did you modify your card into a Quadro/Grid?

  I'm sure I remember David mentioning he had Linux domU running with
  accelerated drivers.Â

The card is modded to Grid K1 (Linux sees it as GK104).

I tried the `nvidia-kernel-dkms` package, and have also tried the latest
downloaded drivers (3.19.60 http://www.nvidia.com/object/unix.html).
 Neither worked, when I installed from the downloaded package it said
it was built for gcc 4.6 and could be incompatible. ÂIt appeared to
still install, but again no video.

What distro are you running? Sounds like it might be a little too bleeding edge.

I am using debian wheezy, so not exactly bleeding edge. ÂIn fact I'm wondering if it's the lack of bleeding edge support that might be the cause of my problems.

I will probably try Ubuntu and maybe Arch a bit later.Â

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