Bug#166413: mga driver doesn't set gamma on second screen
On Mon, 2002-10-28 at 04:07, Marc Wilson wrote:
> 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 thought I'd read on the Xpert list that the second head of those cards
indeed doesn't have a hardware palette and thus can't do gamma
correction. I can't offer any first hand experience though.
--
Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member / CS student, Free Software enthusiast
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