With xorg intel driver, is it possible to bypass DDC and use a higher resolution?

Zhe Su james.su at gmail.com
Sat Jan 17 22:53:00 PST 2009


Thanks a lot. I'll try.

On Sun, Jan 18, 2009 at 2:24 PM, Keith Packard <keithp at keithp.com> wrote:

> On Sun, 2009-01-18 at 11:00 +0800, Zhe Su wrote:
> > Hi,
> >    I just bought a machine with Intel DG45ID mother board. I installed
> > openSUSE 11.1 and use the on-board graphics card to connect my 37'
> > Full HD LCD TV via a HDMI cable. However the highest resolution can be
> > used is 1600x1200 instead of the real physical resolution 1920x1080.
>
> Yeah, the 1920x1080 resolution is probably in some CEA EDID block, which
> we aren't parsing yet (the EDID parsing code lives in the X server,
> btw). I think there's a patch around that adds more EDID parsing stuff.
>
> Until the X server gets this code, you can add the right mode line to
> your xorg.conf file, I'm betting a 1920x1080 reduced blanking mode will
> work just fine (using 'cvt -r 1920 1080'):
>
> # 1920x1080 59.93 Hz (CVT 2.07M9-R) hsync: 66.59 kHz; pclk: 138.50 MHz
> Modeline "1920x1080R"  138.50  1920 1968 2000 2080  1080 1083 1088 1111
> +hsync -vsync
>
> Yeah, it's a pain, and yeah, I hope to see this code added to the X
> server soon.
>
> --
> keith.packard at intel.com
>
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