[mythtv-users] HDMI - no signal

[Mike Perkins]

On 07/01/14 11:03, PJR wrote:
>
>
>
> On 07/01/14 00:00, Mick Sulley wrote:
>> I have set up my myth box, latest Mythbuntu, and got it working with a
>> small TV in the study, now time to move it to the lounge.  I plug it
>> all in via HDMI and the TV displays 'No Signal'.  I plug my laptop in
>> via that same HDMI lead and it works.
>>
>> TV and HDMI lead are OK as they work with my laptop.
>>
>> Myth box is OK as it works with the small TV in the study.
>>
>> Why does the Myth box not work with the big TV?
>>
>> The Myth box is using on board graphics on a Gigabyte SKT-1156
>> Q57M-S2H Motherboard
>> The TV is a Samsung PS42E7HX/XEC
>>
>
> I suggest taking a look at /var/log/Xorg0.log for when both TVs are
> connected, this may give some suggestion as to the problem.  You may of
> course have already done this, if so why not include it in your next
> posting.  I would add that my Samsung HDMI TV has to be specifically
> configured to use one of its HDMI inputs; I have used it only with
> Nvidia graphics cards.
>
I second that suggestion, and also offer: it may depend on which order 
everything is powered up.

-- 

Mike Perkins