[mythtv-users] HDMI Connection Problem & Marantz SR5002

PJR pjrobinson at metronet.co.uk
Wed Apr 11 14:19:14 UTC 2012


On 05/04/12 14:27, Mark Lord wrote:
> On 12-04-05 09:24 AM, Mark Lord wrote:
>> On 12-04-05 04:56 AM, PJR wrote:
>>> I'm getting a 'no screen found' problem on my mythbuntu ION2 system with
>>> built-in nvidia graphics.  I've got 2 systems I want to connect to a
>>> Samsung TV via HDMI via a Marantz SR5002 also via HDMI. The SR5002 has 3
>>> HDMI inputs and 1 HDMI output. Computer 1 when connected via SR5002
>>> HDMI-3 port runs perfectly (nvidia 175 driver) as does computer 2
>>> (nvidia 280.13 driver). Connecting computer 1 or 2 via HDM-2 results in
>>> X not running and Xorg.0.log saying nvidia can't find any screens (for
>> For your ION2 system, there's a relatively easy workaround.
>> Just hook the TV up so that it is "seen" by the box,
>> and then extract the EDID information from it (use nvidia-settings).
>>
>> Then just supply the saved EDID to the driver at each boot,
>> by issuing these commands (once, ever):
>>
>>   nvidia-xconfig --custom-edid=/path/to/saved/edid_file
>>   nvidia-xconfig --connected-monitor=Monitor0
>>   ## "Monitor0" must mach monitor "Identifier" in /etc/X11/xorg.conf
>
> Correction (on the first command):
>
>    nvidia-xconfig --custom-edid=Monitor0:/path/to/saved/edid_file
>    nvidia-xconfig --connected-monitor=Monitor0
>    ## "Monitor0" must mach monitor "Identifier" in /etc/X11/xorg.conf
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>
Ok, I've HDMI connected the Samsung TV directly to computer 2 and saved
the EDID. I've change xorg.conf to
    Option         "ConnectedMonitor" "DFP"
    Option         "UseDisplayDevice" "DFP"
    Option         "CustomEDID" "DFP-0:/home/pjr/Samsung-TV-DFP-0-edid.bin"

I've rebooted computer 2 with this setup and all is ok.

I then connected computer 1 to SR5002 HDMI3 and computer 2 to HDMI2 and
booted computer 1, all works as before. On booting computer 2 and
switching the SR5002 to HDMI2 the screen displays "No signal" after
reelling through the stnd ubuntu boot log.  If I vnc into computer 2
from another machine the normal ubuntu window screen is displayed.  I
found that if I didn't include the xorg.conf line:
    Option         "UseDisplayDevice" "DFP"
then the X server didn't start.

So not much further forward.


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