[Intel-gfx] Support for HDMI on ASUS P5E-VM HDMI (G35 chipset)

[Mike Wright]

Hi Intel folks,

It has been 6 months since I last tried the Intel drivers with my Asus
P5E-VM and HDMI connected Pioneer 5th gen plasma.  Since then I have
been using NVidia hardware which works fine.  I have decided to give
the Intel drivers another run.  I have noticed plenty of commits with
the words HDMI, SDVO and EDID so I thought that looked promising.

Unfortunately for me, the 2.5.1 driver is not working with my TV.
Running startx -- -verbose 5 tells me that the driver probed a
1920x1080i modeline via DDC.  I know the TV supports more modes than
this.  Those modes are stored in the EDID Extended block as Hong below
pointed out.

1.  Did anyone at Intel get around to decoding that EDID block yet?
2.  Secondly, can the intel drivers program an arbitrary mode over
HDMI like NVIDIA can?  If so then I could ignore this whole EDID thing
and just program the right mode.

If someone can try to answer these two, i'd be delighted.  I have
tries the "DDC" "false" option with a 1280x720 at 50Hz modeline but it is
being ignored (I think).  It is not clear to me from the server log if
it really is being ignored or not.  Maybe I can post it.

Kind regards,
Mike



> Thanks Hong,
>
> I might not try until you have EDID extension block parsing working.
> The problem is that my Pioneer on supports 1080i in the EDID basic
> block.  The intel driver doesn't support interlaced modes so will
> reject it I believe.
>
> Mike.
>
>> Attached is the patch that enables SDVO-HDMI output on ASUS motherboard.
>> With this patch, I can get 1920x1080 display on our SONY TV.
>>
>> I am still working on EDID parsing work, since the HDMI DTV stores the
>> mode info into the EDID extension block while currently X server only
>> parses the basic EDID block (1st 128 bytes).
>>
>> Thanks,
>> Hong