(In reply to Lukas Wunner from comment #52)
> (In reply to Ilia Mirkin from comment #49)
> > (In reply to Maik Freudenberg from comment #47)
> > > There's of course the possibility that some braindead vendor=
 would ship a 3D
> > > class tagged device actually having outputs.
> >=20
> > This happens. A lot.
>=20
> Ilia, do you have definitive knowledge of GPUs which
> a) have a different class than PCI_CLASS_DISPLAY_VGA and
> b) have working DP/HDMI outputs and
> c) have an integrated HDA controller?
>=20
> I'm asking because get_bound_vga() in sound/pci/hda/hda_intel.c specif=
ically
> matches against PCI_CLASS_DISPLAY_VGA only. In other words, if a GPU w=
ith
> the three above-listed properties exists and is built into a hybrid gr=
aphics
> laptop, it is currently not registered with vga_switcheroo, which woul=
d be
> wrong.

I can say with some certainty that there are laptops running around, esp
GM107's, whose pci class is 3D, and that have attached DP/HDMI outputs.

I don't think the users in question ever asked about audio, so I don't know
about the last bit. However I can't imagine that it wouldn't be there (esp =
once
all the proper enablement is done).

Is hda_intel only for intel? If so, I'm pretty sure that all intel vga devi=
ces
are PCI_CLASS_DISPLAY_VGA. However if it's used for everything, then it nee=
ds
to deal with DISPLAY_3D as well.