dri/mga issues with libGL

[Ian Romanick]

Paul Miller wrote:
> I just moved up to 6.8.1 from 6.7.x (I think).  The only way
> I could get 6.7.x to work with my matrox g450 was to use the
> matrox mgadrivers-3.0-beta 4.3.0 mga_drv.o instead of the
> xorg one.  Trying to use the xorg mga_drv.o resulted in
> lockups.  But nevermind all that ...
> 
> The 6.8.1 mga_drv.o technically functions but produces this:
> 
> libGL warning: 3D driver claims to not support visual 0x23
> libGL warning: 3D driver claims to not support visual 0x24
> libGL warning: 3D driver claims to not support visual 0x27
> libGL warning: 3D driver claims to not support visual 0x28
> libGL warning: 3D driver claims to not support visual 0x2b
> libGL warning: 3D driver claims to not support visual 0x2c
> libGL warning: 3D driver claims to not support visual 0x2f
> libGL warning: 3D driver claims to not support visual 0x30
> 
> Using google, I found
> (http://sourceforge.net/mailarchive/message.php?msg_id=7662425)
> that apparently "Ian" fixed it 03/12, but I wonder if it got
> re-intoduced or something.

Hm...I'll take a look at it on Monday.  The issue is usually that the 
DDX driver (server-side) and the 3D driver (client-side) don't agree on 
the same set of visuals.