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

[Bob]

On 12/06/2015 02:02 PM, Kingsley Turner wrote:
> On 27/11/15 10:45, Kingsley Turner wrote:
>> 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.
>>>
>>
>
> Hi All,
>
> I can confirm that this version of the NVidia driver solves *all* HDMI 
> screen sleep & wakeup issues with both video and sound.
> Although I still have the EDID set in the xorg.conf as above.
>
> So many thanks for the tip Bob!
>
> cheers,
> -kt
>
No problem. For what's it worth I am using the same EDID technique in 
the xorg.conf file.