Problems using 1920x1080 on a 965 with the Intel driver

[Hong Liu]

On Thu, 2007-12-13 at 15:10 +0000, Simon Farnsworth wrote:
> Hello,
> 
> We're trying to drive a Samsung LE40M87BDX/XEU 1080p LCD TV with an
> Intel 965Q and the xf86-video-intel driver, on Fedora 8.
> 
> We've previously managed to make a 945 chip drive this display at 1080p,
>  using the i810 driver (version 1.6.0). Switching one of these machines
> to the intel driver (either git HEAD, or 2.1.1 as shipped with Fedora),
> or using the 965, causes the display to be unable to lock to the image.
> 
> I've attached a log from the 965 (doesn't work, but is using a newer
> X.org and the intel driver), and from the working 945 (using an old
> X.org and the i810 driver), together with the EDID data from the
> display. Any clues would be welcome; I'm obviously happy to try anything
> people can suggest that might solve this problem.

It seems you have added a preferred mode in your xorg.conf and let intel
driver to choose this mode instead of the detailed timing from the EDID
data.

(II) intel(0): Modeline "1920x1080"x60.0  173.00  1920 2048 2248 2576
1080 1083 1088 1120 -hsync +vsync (67.2 kHz)

(II) intel(0): Modeline "1920x1080"x59.9  138.50  1920 1968 2000 2080
1080 1083 1088 1111 +hsync -vsync (66.6 kHz)

And also from your working log, the detailed timing from EDID is
working.
(EE) I810(0): Modeline "1920x1080"x59.9  138.50  1920 1968 2000 2080
1080 1083 1088 1111 +hsync -vsync (66.6 kHz)

So would you please remove the preferredmode option in your xorg.conf
and have a retry?

Thanks,
Hong