Re: VGA Arbiter Support?

[Michael <macallan%netbsd.org@localhost>]

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Hello,

On Nov 1, 2012, at 11:39 AM, Grégoire Sutre wrote:

> X.org logs say that we don't have VGA arbiter support:
>
> (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
>
> I'm wondering whether this lack of VGA arbiter support could
> explain VT-switch problems with my drm/gem OpenBSD port.  Has
> the VGA arbiter any effect on mono-card systems?
>
> Grégoire
>
> p.s. There is VGA arbiter support for OpenBSD in libpciaccess, see
> http://cgit.freedesktop.org/xorg/lib/libpciaccess/commit/?id=2601ddd0

IIRC that's about accessing the legacy VGA registers on different  
cards, which you only need if you want to run VGA text mode on  
additional heads or if you have oldish hardware that can't switch  
modes without accessing those registers. Multi-card support on macppc  
and sparc(64), which never use text mode, works just fine.

have fun
Michael

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