On Tue, 2008-06-10 at 22:40 -0700, Adam Williamson wrote:
> On Tue, 2008-06-10 at 12:01 +0100, Colin Guthrie wrote:
>
> > Chances are your monitor is not giving the EDID info correctly - tho' if
> > you have tried several displays this is unlikely. I have a similar chip
> > myself and it works fine :/
> >
> > Perhaps your xorg.conf does something odd with disabling EDID or something?
>
> I saw someone reporting a similar issue on the forums recently. I got
> their xorg.conf and Xorg.0.log and could not see what the problem was;
> no unusual settings in xorg.conf , and from the log, the monitor was
> providing correct modelines via DDC. I *think* it's some kind of driver
> bug.

Actually, a development from the forum: it turns out that my
more-in-hope-than-expectation suggestion actually helped. Try commenting
out the HorizSync and VRefresh lines in xorg.conf . Does that help?

Forum thread is http://forum.mandriva.com/viewtopic.php?p=503032 , btw.
--
adamw