[Nouveau] Nouveau fails to initialize G94GL / Quadro-FX1800 on aarch64 board

[Ilia Mirkin]

It's surprising that it's coming up as a platform device and not a pci
device. Perhaps xorg was built without pci support? (Not sure if
that's even possible.)

It should definitely not be coming up as a GPU screen, but as a regular screen.

  -ilia

On Thu, Jul 7, 2016 at 1:15 PM, Clemens Eisserer <linuxhippy at gmail.com> wrote:
> Hi again,
>
> Some further digging revealed that NVPlatformProbe is called with the
> flag PLATFORM_PROBE_GPU_SCREEN, so the flag XF86_ALLOCATE_GPU_SCREEN
> is passed to xf86AllocateScreen.
>
> After xf86AllocateScreen I end up with xf86GPUScreens == 1 and
> xf86NumScreens == 0.
>
> The xf86GPUScreens seems to be ignored by all the following code, only
> xf86NumScreens is evaluated afterwards in xf86BusConfig:
>     /* If nothing was detected, return now */
>     if (xf86NumScreens == 0) {
>         xf86Msg(X_ERROR, "No devices detected.\n");
>         return FALSE;
>     }
>
> Is the issue that xf86NumScreens is zero at the beginning, or that
> xf86GPUScreens is not taken into account later on?
>
> Any help would be highly appreciated.
>
> Thanks and best regards, Clemens
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