* SSL2.conf Defines Incorrect Number of Capture Channels
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@ 2026-01-05 23:21 ` GitHub issues - opened
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From: GitHub issues - opened @ 2026-01-05 23:21 UTC (permalink / raw)
To: alsa-devel
alsa-project/alsa-ucm-conf issue #676 was opened from TheBakedPotato:
The file at `ucm2/USB-Audio/SolidStateLabs/SSL2.conf` has the line
```
Define.DirectCaptureChannels 4
```
However, I believe that should actually be
```
Define.DirectCaptureChannels 2
```
since the SSL2 (**not** the SSL2+) only has 2 physical inputs.
As well, now, with that change, a third audio "profile" appears ago for the SSL2 output device of `Direct SSL 2`.
<img width="416" height="78" alt="Image" src="https://github.com/user-attachments/assets/14998079-d81d-444f-80b1-b198ad049428" />
The `[ALSA UCM error]` still appears, but now the correct "profile" is available. As well, now my music player, Amberol, is able to persist the volume change between songs. Before if I changed the volume and proceed to the next song the audio in the Amberol application would get set to max.
The output in `journalctl` is still present
```
Jan 05 18:11:39 endeavour-zone wireplumber[1533]: spa.alsa: Error in ALSA UCM profile for _ucm0001.hw:S2,0 (HiFi: Mic2: source): CaptureChannels=4 > avail 2
Jan 05 18:11:39 endeavour-zone wireplumber[1533]: spa.alsa: Errors in ALSA UCM profile for card SSL 2
Jan 05 18:11:40 endeavour-zone wireplumber[1533]: spa.bluez5: BlueZ system service is not available
```
if the HiFi profile is selected. I'm assuming because the file `SSL2-HiFi.conf` needs to be updated for the correct number of hardware capture channels.
Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/676
Repository URL: https://github.com/alsa-project/alsa-ucm-conf
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