XRandR support checking

[Peter Hutterer]

On Wed, Jul 09, 2008 at 11:22:13AM +1000, Graeme Gill wrote:
> Peter Hutterer wrote:
> > On Tue, Jul 08, 2008 at 02:02:48PM +0200, Kai-Uwe Behrmann wrote:
> >> Whats the easiest way to see if a particular server, the actual running 
> >> one, supports XRandR 1.2 ?
> > 
> > XRRQueryVersion()
> 
> Doesn't seem to work. I have reports of both the nVidia and ATI
> (binary) drivers reporting XRandR 1.2, when in fact they do
> not support V1.2 (attempts to access the VideoLUTs fail).

Ah, I see. XRRQueryVersion returns the version supported by the server. If a
driver loaded into the server doesn't support it that's a different problem.
I don't know how to get that information though.

Cheers,
  Peter