Intel driver EDID not probing proper resolutions over HDMI
keithp at keithp.com
Sat Jul 21 13:27:07 PDT 2007
On Sat, 2007-07-21 at 14:41 -0500, Shawn Bohrer wrote:
> Well, I imagine the HDMI receiver is indeed crummy, but I have been
> using it successfully at 1080p for the last 5 months. Though I usually
> had to restart X twice to get it to display at 1080p.
I'm wondering if some additional delays during startup would help this.
I can't think of anything else that restarting the server could change.
> Yes I have two DVI ports so I could try going that route though I would
> need a new cable.
Strongly recommended -- DVI to HDMI cables aren't that expensive if you
orer over the net.
> This is something I wasn't clear on. Is DDC required?
It is a required part of the HDMI spec, so this failure clearly
indicates either a really broken HDMI chip or some miscommunication
between the HDMI SDVO card and the HDMI receiver.
> Is it possible
> to set a Modeline in my xorg.conf and force it to use that resolution?
Yes, of course. xorg.conf(5) should show you how to configure that.
> (II) intel(0): Output TMDS-1 is connected to pipe none
Right, the server decided to enable the VGA-2 output instead, and
doesn't have enough pipes to also connect the TMDS-1 output.
Play with xrandr and see if you can't get the HDMI output working; you
can add modes and switch stuff around in many useful ways.
> Yeah, actually I forgot it had this, and I was wondering what the heck
> VGA-2 was. This may be a stupid question, but how do I disable it?
Again, xorg.conf(5) documents how to do xorg.conf-based configuration.
Note that testing with xrandr is going to be a lot faster...
keith.packard at intel.com
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