Problems using 1920x1080 on a 965 with the Intel driver

[Alan Hourihane]

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.

Hi Simon,

It's probably the the driver is trying to drive your TV with that 173Mhz
pixel clocked 1920x1080 at 60Hz mode instead of the 1920x180 at 59.9 with a
138.5MHz clock.

I'm pretty sure most TV's will want the "Reduced blank" version.

So if you force the Xserver to use that alternative mode, you should be
o.k.

Alan.