[mythtv-users] How to default xorg.conf to HDMI

David Knight dlknight at sdf.lonestar.org
Sat Dec 20 12:52:56 UTC 2008

On Fri, December 19, 2008 2:37 am, Boleslaw Ciesielski wrote:
> Mark Jenks wrote:
>> I have a M3N78 Pro motherboard, but for some reason I can not get it to
>> default to HDMI when I reboot it.
>> If I reboot it when the TV is off, it defaults to VGA.  WIth the TV on,
>> it defaults to HDMI.
> Try
>          Option      "ConnectedMonitor" "DFP"
>          Option      "UseDisplayDevice" "DFP-0"

You probably also need to export the EDID data from within the NVIDIA
Settings GUI. Save it the edid.bin to your home directory e.g.
~/.nVidia-edid/edid.bin. Then add the following to your xorg.conf -

Option         "CustomEDID" "DFP-0:/home/mythtv/.nVidia-edid/edid.bin"

If you can you should use the NVIDIA macros to set the resolution (again
in your xorg.conf) -

SubSection     "Display"

        #          1080p           720p            480p
        Depth       24
        Modes      "1920x1080_60" "1280x720_60" "720x480_60"

More information here - http://www.mythtv.org/wiki/index.php/ComponentOut


Dave K

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