Re: Radeon 8500, Xfree 4.3, DVI output, corruption
On Mon, 2004-04-05 at 00:55, Alex Perry wrote:
> Using a vanilla Testing basic install and xserver-xfree86 version 4.3.0-7
> with a Radeon 8500 (ATI brand) card and a Dell 20" LCD flat panel monitor.
> Both card connectors (DVI and VGA) are plugged into the monitor for this.
> I'm just trying to get as far as having the server up, and an xterm visible.
>
> I can pretty much make any change to the config file and the xserver behaves
> exactly as requested, in terms of what functionality goes on which monitor,
> but the displayed image has the pixels permuted from their true locations.
> It looks like the kind of effect when the drawing algorithm and the CRTC
> can't agree on how to map rows and columns of pixels into the RAM buffer.
> Providing you don't mind looking for the pixels that make up a given
> character (in the xterm window) in a dozen-odd places on the monitor,
> the system as a whole is running normally and applications are happy.
>
> HorizSync 31.5 - 69.0
> VertRefresh 59 - 61
> DefaultDepth 24
> Modes "1600x1200" "640x480"
> I've tried reducing the Vsync, Hsync, resolution, number of outputs in use.
> None have any effect (except that resolution changes the permutation).
>
> I'm assuming I should bring down the current CVS and try building that?
Yes, or try more or less up-to-date snapshot packages, e.g.
xserver-xfree86-dri-trunk as described in
http://www.freedesktop.org/~dri/snapshots/README.Debian .
> Or, is this a known problem for which there is a workaround to try?
> I've done some googling and haven't found anything relevant (yet).
Sounds like it could be something like
http://bugs.xfree86.org/show_bug.cgi?id=798 .
--
Earthling Michel Dänzer | Debian (powerpc), X and DRI developer
Libre software enthusiast | http://svcs.affero.net/rm.php?r=daenzer
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