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

[Michael T. Dean]

On 02/10/2016 09:04 PM, Lee Maisel wrote:
> Have been running MythTV boxen for a few years, using .26 now, and has 
> been running fine for over a year or so.
>
> Suddenly, last night, went to watch something, and no audio.
>
> No matter what, no audio.
>
> Rebooted, and no matter what, the HDMI claims to be invalid in FE setup.
>
> aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: PCH [HDA Intel PCH], device 0: ALC662 rev1 Analog [ALC662 rev1 
> Analog]
>   Subdevices: 0/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] 
> <-----------------------  This one --------
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
>
> Yet, setup says "ALSA:plughw:CARD=PCH,DEV=3 is INVALID or NOT USEABLE
>
> ???????????????????
>
> SAME with ALSA:hw:CARD=PCH,DEV=3

Go into frontend setup and rescan for audio devices, then choose some 
other value (any one that's not the one you had), then rescan again, 
then find the one you want.  That way, you will ensure that the one you 
choose is valid--rather than just shown because that's what you had in 
the list.

Mike