[mythtv-users] Get HDMI connection information

[Bob]

On 01/12/2015 02:25 PM, Josu Lazkano wrote:
> Thanks again Paul,
>
> I upgrade some package in my Debian and know I can not play with cec.
>
> I will try to reinstall it.
>
> Kind regards.
>
> 2015-01-11 16:55 GMT+01:00 Paul Raison <paul at raison.org.uk>:
>>> On 11 Jan 2015, at 15:20, Josu Lazkano <josu.lazkano at gmail.com> wrote:
>>>
>>> Thanks Paul,
>>>
>>> I got the Pulse Eight CEC device, but I want to know if the device is
>>> powered on to turn on the device.
>>>
>>> I read about EDID, but I can't get any information.
>>>
>>> Regards.
>> You need to use the cec-client command line tool to interrogate your tv and tell if it's on or not.
>
>
I was able to read this information from Xorg.log, if you are using 
Xorg. For example:

[    51.005] (--) NVIDIA(GPU-0): --- EDID for Pioneer Electronic 
Corporation VSX-1123 (DFP-1) ---
[    51.005] (--) NVIDIA(GPU-0): EDID Version                 : 1.3
[    51.005] (--) NVIDIA(GPU-0): Manufacturer                 : PIO
[    51.005] (--) NVIDIA(GPU-0): Monitor Name                 : Pioneer 
Electronic Corporation VSX-1123
[    51.005] (--) NVIDIA(GPU-0): Product ID                   : 0x0000
[    51.005] (--) NVIDIA(GPU-0): 32-bit Serial Number         : 0x01010101
[    51.005] (--) NVIDIA(GPU-0): Serial Number String         :
[    51.005] (--) NVIDIA(GPU-0): Manufacture Date             : 2013, week 0
[    51.005] (--) NVIDIA(GPU-0): DPMS Capabilities            :

this goes on for quite a while, but shows the video and audio 
capabilities of the receiver.  The raw EDID bytes are show if you need 
that type of information.

Bob