[mythtv-users] Digital audio Capability grayed out

[Klaas de Waal]

On Sat, 13 Aug 2022 at 12:27, James Abernathy <jfabernathy at gmail.com> wrote:

> Found it. The problem started with
> commit: cd109ec6c08f578e1b0965e4726e6046d75af8e8 from Apr 9 22:57:38
>
> Here's the detailed lab report I did to document my testing. Things were
> getting blurred until I did this. The testing problem was that if you have
> a working 5.1 setup and change to a commit where it fails, you may not know
> it until you change your audio device.
> ------------------
> All this testing was on a Asrock NUC 1165G7 Core i7 1165G7. Connected to
> Denon AVR via HDMI and AVR connected to Samsung UHD 4K TV. The PC is
> running EndeavourOS which is really Archlinux but easier to install. So
> Mythtv combo FE/BE was built from source originally via AUR. However, when
> this testing started I followed the normal Build from source wiki page:
> https://www.mythtv.org/wiki/Build_from_Source.
>
> The NUC was not rebooted during this testing. So the backend should not
> have restarted. So in theory only the frontend should have changed. I
> checked the Status page each test and it did agree with the commit I was on.
> -----------------
>
> Went back to fixes/32 latest and built it for sanity and 5.1 fails and
> Digital Audio Capabilities is grayed out.
>
> Now going back to Jun 30 ced41a5f8f5a53c685755cde67fbe16206c9aa55
> 5.1 does not work, the same as the latest.
>
> Going back to 1eacadd5f413197746cb61ea036c522c65f95936
> again from Apr 9th. 22:49:25
> Dolby Digital 5.1 is working again.
>
> Now going to ced41a5f8f5a53c685755cde67fbe16206c9aa55
> from Jun 30
> At first it's working but if you change the audio device to something else
> like alsa and uncheck the Digital Audio Capabilities, they go gray and then
> when you change to the right HDMI, there are no Digital Capabilities.
> Definitely some memory kept somewhere.
>
> Going to try 1eacadd5f413197746cb61ea036c522c65f95936 again from April 9th
>  22:49:25
> As soon as you start mythfrontend, go to settings you see the right audio
> device and you can set Digital Audio Capabilities.  You can set 5.1 and it
> works. You can also change to ALSA default that doesn't really work and the
> Capabilities are not grayed out.
>
> Next ec4558f3e1bbc021d771276a288039924f181a8b from Apr 20th
> at first it looks okay, but when you change to Alsa Default and uncheck
> the 4 Digital Audio Capabilities, change to stereo and save you can not got
> back to the correct HDMI device and all the Digital Audio Capabilities are
> grayed out.
>
> Changed to cd109ec6c08f578e1b0965e4726e6046d75af8e8 from Apr 9 22:57:38
> Does not work. Digital Audio Capabilities grayed out.
>
> Change back to 1eacadd5f413197746cb61ea036c522c65f95936 from Apr 9 22:49:25
> Everything working fine, related to Dolby Digital 5.1!
>
> Jim A.
>
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Thanks for doing the bisecting and identifying the commit. I will have a
look at it. It could be that I ask you to test something once I have a
potential fix. It could also be that it is beyond my paygrade but then I
will make a  ticket.

Klaas.
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