[mythtv-users] ALSA/HDMI Losing my mind, ripping out hair

[jksjdevelop]

On 13/02/16 14:27, Andrew Stadt wrote:
>
>
> On 12/02/16 01:38 PM, Lee Maisel wrote:
>>
>>
>> On 2/12/2016 12:34 AM, faginbagin wrote:
>>> Hi Lee, Have you tried a different HDMI cable? Have you unplugged 
>>> the TV and then plugged it back in? The above have cleared 
>>> occasional problems I've seen with video signals. Maybe they'll fix 
>>> your audio problem. As for getting X to work with a new video card, 
>>> you'll need to boot in recovery mode where you'll get the option to 
>>> start X in failsafe mode which should give you more options to get X 
>>> working with the new card. HTH, Helen 
>>
>>
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>>> https://forum.mythtv.org 
>>
>> Thanks Helen,
>>
>> Yes, I have had issues like that before with video, and thought maybe 
>> it was the same deal, so I reset everything, unplugged, replugged, 
>> etc.  No change.
>>
>> Still thinking it's either a hardware failure OR a resources 
>> problem.  The funny thing is, there are no error messages with the 
>> driver, and I can see the card with aplay -l but in MythTV FE setup, 
>> when I select the correct card and settings, it claims it's 
>> invalid.   If it was hardware, I would think that it would not see 
>> the card, or since it DOES see the card, just accept it, and then 
>> audio would just not come out.  But it sees the card, and then 
>> complains that it's not valid.   UGH.
>>
>> Lee
>>
>
> If you're still on myth 0.25, I'm guessing you are running an older 
> xorg, which probably isn't doing/capable of full auto, so you'll need 
> to update /etc/X11/xorg.conf which the correct device information for 
> the add-in card. You didn't mention which card/make/model it is so 
> can't give you specifics there.
>
> You mention the audio device is listed by aplay -L, have you used an 
> alsa-player/mplayer (or equivalent) to see if you can play any audio 
> through the device outside of myth?
>
> Andrew.
>
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I have had this problem in the past but resolved it by setting the 
frontend to always upconvert stereo to 5.1 so the output from Mythtv 
never changes format. The Onkyo receiver is set to CBL Direct mode ie do 
nothing. The display on the receiver shows it is receiving MCH PCM 5.1.