rt721: capture switches (FU0F/FU1E) default to OFF on AMD SoundWire
GitHub issues - edited <[email protected]> Mon, 6 Jul 2026 15:46:11 +0200 (CEST)
| Newsgroups | org.alsa-project.alsa-devel |
|---|---|
| Message-ID | <[email protected]> |
alsa-project/alsa-ucm-conf issue #805 was edited from BenSharir: The RT721 codec capture switches for ASUS ProArt PX13 (AMD SoundWire) default to OFF, which mutes the DMIC microphone. **Symptom**: Microphone records silence despite being selected in system settings. **Cause**: The following ALSA mixer controls are off by default: - `rt721 FU0F Capture Switch`: off,off - `rt721 FU1E Capture Switch`: off,off,off,off **Proposed Fix**: The UCM profile should enable these switches by default in the HiFi verb. **Hardware**: - Laptop: ASUS ProArt PX13 HN7306EAC - Chipset: AMD ACP70 SoundWire - Codec: Realtek RT721 - Card components: `cfg-amp:2 mic:acp-dmic cfg-mics:1 hs:rt721` **System Info**: - OS: Fedora 44 - Kernel: 7.0.13-200.fc44.x86_64 - alsa-ucm: 1.2.16.1-1.fc44 **Workaround**: ```bash amixer -c 1 cset name='rt721 FU0F Capture Switch' on,on amixer -c 1 cset name='rt721 FU1E Capture Switch' on,on,on,on ``` **Verification**: ```bash # Record 5 seconds of audio timeout 5 arecord -D hw:amdsoundwire,4 -f S32_LE -r 48000 -c 2 /tmp/mic-test.wav # Play back aplay /tmp/mic-test.wav ``` Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/805 Repository URL: https://github.com/alsa-project/alsa-ucm-conf