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Date: Fri, 18 May 2007 06:01:19 +0200
From: Matthias Buelow <mkb@mukappabeta.de>
To: "S. Roberts" <sroberts@dsl.pipex.com>
Cc: FreeBSD-Questions <freebsd-questions@freebsd.org>
Subject: Re: How do I set the resolution for a new monitor?
Message-ID: <20070518040119.GA37439@altair.mukappabeta.net>
References: <OF0B8CD311.82EB6127-ON88256BBC.0074C56E-88256BBC.007503FE@simrad.no> <1021670265.751.6.camel@Demon.Strobe.org> <20070518013752.GA25364@altair.mukappabeta.net> <1021687406.306.10.camel@Demon.Strobe.org>
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S. Roberts writes:

>     I ended up running XF86Config to get the display resolution set in
>the end (thanks to all those that replied earlier). However, despite
>this, I have to say that my colour settings have now been messed up.
>
>Where before I at least had clean crisp colours, now I have this grainy
>finish to everything. I'll try to see what I can do with it for now, but
>I'm not happy with what I'm getting out of this monitor.
>
>The graphics card's the ATI 8MB XPERT98 that worked brilliantly with my
>15" monitor, but somehow this 21" monitor with supposedly higher
>resolution capabilities just isn't happy here.
>
>For completeness sake's I'll include the relevant bits of the configs
>created after running XF86Config. Hopefully someone'll point out some
>silly oversight on my part.

Make sure you're not running in 8bpp mode or such...  try to add a
"DefaultDepth 24" (or 32 if supported) to your "Screen" section.
This will always give you a TrueColor display, instead of a PseudoColor
(8 planes) one, in which certain applications may dither colors to
make up for the small color space ("grainy finish").

On a XFree4 XF86Config (in this part should be the same with XF3)
this would look similar to the following:

...
Section "Screen"
    Identifier  "Screen 1"
    Device      "radeon7500"
    Monitor     "hansol"
    DefaultDepth 24

    Subsection "Display"
    ...


--mkb


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