[mythtv-users] NVidia HDMI Sound & Video gone after monitor (TV) sleep or disconnect [SOLVED]

[Kingsley Turner]

On 23/11/15 14:49, Bob wrote:
> On 11/16/2015 04:21 PM, Kingsley Turner wrote:
>> On 11/11/15 09:39, Kingsley Turner wrote:
>>> The solution to fixing the video, which seems to work 99% of the time, 
>>> is to "hardcode" the TV (or amplifier) EDID signature into xorg.conf.  
>>> It should the the EDID of the next device after the video card.  So if 
>>> the HDMI cable goes first into an amplifer/av-receiver then that.  If it 
>>> goes straight to a TV, then the EDID of a TV.
>>>
>>> First you need to use the nvidia-settings tool to save a copy of your 
>>> output device's EDID
>>> Then this is referenced from within your xorg.conf "Screen Section":
>>>
>>> Section "Screen"
>>>     [... all the other stuff]
>>>     Option         "ConnectedMonitor" "DFP-1"
>>>     Option         "CustomEDID" "DFP-1:/home/mythuser/onkyo_amp_edid.bin"
>>>     Option         "IgnoreEDID" "false"
>>>     Option         "UseEDID" "true"
>>> EndSection
>>>
>>> The "ConnectedMonitor" has to match where your device links. This can be 
>>> seen in the nvidia-settings GUI, but also found in /var/log/Xorg.0.log.  
>>> The "CustomEDID"  needs the path to where you saved the monitor's EDID 
>>> data.
>>>
>>
>> Looks like I spoke too soon.
>>
>> This works, but only about 70-80% of the time.
>>
>> If you have a full-keyboard, you can drop to a console [Ctrl-Alt-F2] and 
>> then back [Ctrl-Alt-F7] and it works again.
>> Or you can reboot, or logout.
>> _______________________________________________
> I was having a similar problem and it was due to the proprietary NVidia 
> video driver, I found this thread at the time (related to DisplayPort):
>
> https://forums.geforce.com/default/topic/547165/-workaround-nvidia-hdmi-audio-ldquo-not-plugged-in-rdquo-hotplug-detection-failure-after-sleep/ 
>
>
>  I am now using version 352.09 of the NVidia driver and the problem has 
> disappeared.
>

Thanks for the info.

I've upgraded the driver, fingers crossed.