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Bug#166413: mga driver doesn't set gamma on second screen



On Sun, Oct 27, 2002 at 07:25:51PM -0500, 166413@bugs.debian.org wrote:
> 2) It is possible that this is a hardware limitation.  Multiple-output
> video cards often don't support all features on secondary "heads".

I always had the problem with my G450 and later with my G550 that X
wouldn't set the gamma the same on both heads, although it claimed that it
was according to the log.  The monitors were the same make and model, and
the difference was distinct and annoying.

OTOH, xgamma was always quite willing to set the gamma on the heads
separately, and I was also able to specify specific gamma settings for each
monitor in XF86Config-4 and have them take effect.

> [I'd appreciate feedback from Matrox users on the debian-x list so I
> know whether I'm right about 2) or not.]

Hope that helps.

-- 
Marc Wilson
msw@cox.net

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