After Update: No more sound. Downgrading solved it.

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alsa-project/alsa-ucm-conf issue #131 was edited from aljazzair:

Hello.

I am on Manjaro Linux, an Arch derivative.
Recently, after a system update, sound was gone.
After a couple of hours investigation, I narrowed it down to an update of alsa-ucm-conf.
Basically after downgrading 1.2.6.3-0 => 1.2.5.1-1, my problem is gone. 

Symptom: With 1.2.6.3-0, there was no sound.
Running aplay -l listed my hardware.
Also I was able to hear sound from my monitor using the following command:

> aplay -D plughw:0,7 /usr/share/sounds/alsa/Front_Right.wav     


But pactl list sinks came back empty. Pavucontrol showed no output devices either. Rebooting several times, editing various config files did not help.

I looked at the list of recent upgrades and saw alsa-ucm-conf in the logs. Downgrading solved my issue.

Distribution:

> Linux homelab 5.13.19-2-MANJARO #1 SMP PREEMPT Sun Sep 19 21:31:53 UTC 2021 x86_64 GNU/Linux

List of PLAYBACK Hardware Devices from aplay -l:

> card 0: PCH [HDA Intel PCH], device 0: ALC1220 Analog [ALC1220 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 1: ALC1220 Digital [ALC1220 Digital]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
>   Subdevices: 0/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0

Sound managed with:

>  pipewire --version
> pipewire
> Compiled with libpipewire 0.3.40
> Linked with libpipewire 0.3.40
> 

I am posting this in order to document what happened in case someone has a similar issue, and searches google for hints.
Also to inform the developer, maybe something can be done to avoid this.

Thank you.

Issue URL     : https://github.com/alsa-project/alsa-ucm-conf/issues/131
Repository URL: https://github.com/alsa-project/alsa-ucm-conf



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