ati driver dual head 2nd monitor incorrect resolution

[Alex Deucher]

On Mon, 11 Oct 2004 14:19:01 -0700 (PDT), John H. <mistamaila at yahoo.com> wrote:
> So in xorg.conf I just need to
>  Option      "MergedFB" "False"
> 

yes

> and load xinerama module in xorg.conf?
> 
> 
read the xinerama howto or take a look at a sample config (google is
your friend).  here's an example I found:
http://wiki.linuxquestions.org/wiki/Xinerama_for_Radeon_9200

Alex

> 
> --- Alex Deucher <alexdeucher at gmail.com> wrote:
> 
> > On Mon, 11 Oct 2004 12:49:04 -0700 (PDT), John H.
> > <mistamaila at yahoo.com> wrote:
> > > Ok
> > > I upgraded to 6.8.1 on my fc2 machine.
> > > I have a radeon 9600, and told my xorg.conf to use
> > ati
> > > driver.
> > >
> > > If I have the following...
> > >         Option      "MetaModes"
> > "1600x1200-1024x768"
> > > xinerama seems to work, but my second monitor, a
> > flat
> > > panel LCD at 1024x768, scrolls vertically once I
> > log
> > > in from xdm/gdm, so when I maximize apps in it I
> > have
> > > to scroll down or up to see them all.
> > >
> > > If I do
> > > Option      "MetaModes" "1024x768-1024x768"
> > >
> > > Neither monitor needs to scroll(maximized apps
> > work
> > > fine) but obviously I want a higher resolution on
> > the
> > > first monitor, 1600x1200.
> > >
> > > any ideas?
> > >
> >
> > use xinerama instead of mergedfb.  the scrolling is
> > because with
> > mergedfb, there is one big framebuffer that both
> > crtcs point into.  it
> > has be to big enough for both, so you get teh
> > scrolling affect. you
> > can lock the frame movement if you feel like editing
> > the code in
> > radeon_mergedfb.c, but then you risk having apps
> > appear on a non
> > visible part of the framebuffer.   The behavior you
> > want is "regular"
> > dualhead with xinerama.  to do that, set up  read
> > the xinerama howto.
> > In "regular" dualhead, each screen has it's own
> > framebuffer and
> > xinerama is used to stich them together as one
> > single logical screen.
> >
> > Alex
> > _______________________________________________
> > xorg mailing list
> > xorg at freedesktop.org
> > http://freedesktop.org/mailman/listinfo/xorg
> >
> 
> 
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