965G, ADD2 HDMI, Toshiba TV: blank screen, X is operational

Nicolas Will nico at youplala.net
Fri Mar 21 13:27:26 PDT 2008

On Fri, 2008-03-21 at 12:34 -0700, Keith Packard wrote:
> On Fri, 2008-03-21 at 12:19 -0700, Markus Strobl wrote:
> > On mine it turned out the EDID the TV supplied was not actually
> > supported by the TV (!). Solution was to manually compose a mode
> line
> > in xorg.conf and it has worked fine since.
> One thing we've had a lot of luck with here was to replace the
> HDMI->HDMI cable with an HDMI->DVI cable, plugging the HDMI end into
> the
> computer and the DVI end into the TV. 
> The TV will report different modes over HDMI than over DVI as HDMI
> must
> provide space in the video signal to encode the audio data. When
> hooked
> up over DVI, the TV will often report a non-interlaced
> native-resolution
> reduced-blanking mode that the driver can provide without difficulty.
> I suspect this is more prevalent with 1080p devices than lower
> resolution monitors.


There is only one slight problem with exploring this path...

There is no HDMI on either end, TV or PC...

I'm a bit stuck there.


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