[xorg] Noisy picture with intel driver and DVI ADD2 card

[Alan W. Irwin]

On 2007-12-16 19:05-0800 Rich Aycock wrote:

> I've got an Intel G33 that I'm trying to hook up to my 720p DLP TV. I'm using 
> an ADD2 card to output DVI to my Toshiba 42HM66 HDMI input.  The picture 
> comes up but there is a lot of noise (speckles bouncing around all over the 
> TV) and occasional flickering.  In the Xorg log I see this line:
>
> (EE) intel(0): First SDVO output reported failure to sync
>
> which I think is the source of the problem.  When I use 640x480 intead of 
> 1280x720 (720p) the picture is fine and I don't get that error above.  I also 
> hooked an LCD monitor up to it via DVI and it worked fine. I've used the DVI 
> out on my cable box with this TV without problems. Any ideas of how to fix 
> this, or is it just a buggy TV?
>
> I'm using v2.2.0 of the intel driver from Debian Unstable.  I've attached my 
> xorg.conf and Xorg.0.log.

This issue may be related to bug 13399.  There I reported a problem with my
g33 chipset without ADD2 card.  I couldn't get the Debian unstable driver to
work at all (keyboard lockup + monitor in extreme power save mode) unless I
applied the i830-restore-pipeconf-fix.patch from bug #13196 to version
2.2.0.  So you might want to try that patch yourself.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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