Incomplete sound device detection in PulseAudio with alsa-lib 1.2.5

[GitHub issues - opened]

alsa-project/alsa-lib issue #143 was opened from foutrelis:

(Copying my comments over from #142 since it appears to be a different issue to that one. Sorry for the noise there!)

After upgrading to alsa-lib 1.2.5 Chromium stopped playing audio until pulseaudio was restarted. Upon closer inspection, `pactl list cards` is now missing the `HDA Intel HDMI` card and only shows the `HDA Intel PCH` one.

Some error messages I've gathered:

- After upgrading to alsa-lib and before restarting pulseaudio, attempting to play a video in Chromium would result in:
  `pulseaudio[625]: Error opening PCM device front:0: Invalid argument`

- Restarting pulseaudio with alsa-lib 1.2.5 installed logs the following to the journal:
  ```
  pulseaudio[66345]: Failed to find a working profile.
  pulseaudio[66345]: Failed to load module "module-alsa-card" (argument: "device_id="1" name="pci-0000_00_03.0"
  card_name="alsa_card.pci-0000_00_03.0" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no
  deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""):
  initialization failed.
  ```

Git bisect points to commit 63f7745be504e447923f2cde421177a2fca99340 as the first commit that results in the `Failed to find a working profile` error.

After restarting pulseaudio with alsa-lib 1.2.5 installed, it appears that `pactl list cards` shows one fewer cards on my laptop which has this audio hardware:

```
$ lspci | grep Audio
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
```

[alsa-lib-1.2.4-pactl-list-cards.txt](https://github.com/alsa-project/alsa-lib/files/6575475/alsa-lib-1.2.4-pactl-list-cards.txt)
[alsa-lib-1.2.5-pactl-list-cards.txt](https://github.com/alsa-project/alsa-lib/files/6575476/alsa-lib-1.2.5-pactl-list-cards.txt)

`pulseaudio -v` output:

[pulseaudio-verbose.txt](https://github.com/alsa-project/alsa-lib/files/6577650/pulseaudio-verbose.txt)

Issue URL     : https://github.com/alsa-project/alsa-lib/issues/143
Repository URL: https://github.com/alsa-project/alsa-lib