Radeon Driver Default Display Resolution

[Hamish]

On Sunday 30 March 2008 14:38:47 you wrote:
> On Tue, Mar 25, 2008 at 8:42 AM, Hamish <hamish at travellingkiwi.com> wrote:
> > On Monday 24 March 2008 14:12:33 Alex Deucher wrote:
> >  > On Mon, Mar 24, 2008 at 8:54 AM, Greg Treantos <gtreanto at gmail.com> 
wrote:
> >  > > Thanks Alex adding the modelines worked. I tried Beso's suggestion
> >  > > first without success. I have 2 follow up questions,
> >  > >
> >  > > 1) What changed in 7.3 that caused this issue?
> >  >
> >  > The radeon driver got xrandr 1.2 support.  Previous versions of the
> >  > driver assumed one monitor per driver instance while with xrandr you
> >  > may have several monitors.  With xrandr it is much more important to
> >  > get mode information about each monitor since you may have two or more
> >  > monitors connected with vastly different capabilities.  The previous
> >  > version of the driver more or less always assumed a monitor was
> >  > connected and forced whatever mode you specified.  You can still do
> >  > this, but as you see, the configuration has changed a bit.  This page
> >  > should give you a good overview:
> >  > http://www.intellinuxgraphics.org/dualhead.html
> >
> >  Sorry to appropriate the thread, but I'm also running gentoo, and having
> > a VERY similar problem with my setup (Dual monitors, X300 graphics, xorg
> > ati/radeon drivers, 1024x768 VGA-0 LCD on left, 1680x1050 DVI-0 LCD on
> > right).
> >
> >  In my case the Xorg log file shows the modes being probed for the two
> >  monitors... I've also been through the intelligraphics page and tried to
> >  setup for static config... BUt mine still comes up with 1024x768 on both
> >  monitors and requires xrandr to set 1680x1050 on the large monitor...
>
> The "PreferredMode" option did not properly work with xserver 1.3  By
> default xrandr tries to pick the closest mode possible supported by
> each monitor rather than the preferred modes.
>

Thanks Alex. I'll try 1.4 & see how that goes.

> >  Admittedly the Screen section confuses me a bit... Why do I specify the
> > total virtual screensize of both monitors in the Screen section but the
> > screen section only references one of the monitor sections? Do I have
> > that wrong? (Although it seems the same as what
> > www.intellinuxgraphics.org says).
>
> The monitor in the screen section is irrelevant if you specify per
> output monitors.  The screen defines the total desktop size in which
> one or more monitors can be configured.
>

Ah. Ta. The only docs I can really find are for 7.0 or 6.8... There doesn't 
seem to be an up-to-date man page for radeon (xf86-video-ati 6.8.0) that I 
can find... (The man page on my Gentoo still mentions mergedFB etc).

On the same vein... I find my X600 to be really really slow.. Painfully slow. 
Could that be due to too a large desktop (2704x1050)? Or am I doing something 
wrong? Is an X600 just a slow card? I thought it should be good enought for 
compiz even... But only if you're prepared for several seconds wait whenever 
focus changes...

H
> Alex