alsa-project/alsa-ucm-conf issue #371 was edited from ricciolino: I posted [this](https://ubuntuforums.org/showthread.php?t=2486774) some weeks ago and I thought I had been able to solve the issue. Unfortunately, it does not seem like so. **Summary of the issue**: attaching my headphone to the rear jack, sound is emitted correctly, whilst frontal AUX jack it just looks dead (headphone device is correctly recognized in sound system settings but no sound is emitted). Summary of steps that brought me to the initial solution. Check the sound card USB device with: ``` > lsusb | grep -i audio Bus 001 Device 003: ID 0db0:b202 Micro Star International USB Audio ``` Execute the following commands in sequence: ``` sudo mv /usr/share/alsa/ucm /usr/share/alsa/ucm.bak sudo mv /usr/share/alsa/ucm2 /usr/share/alsa/ucm2.bak curl -L -o alsa-ucm-conf.tar.gz https://github.com/alsa-project/alsa-ucm-conf/archive/refs/heads/master.tar.gz sudo tar xvzf alsa-ucm-conf.tar.gz -C /usr/share/alsa --strip-components=1 --wildcards "*/ucm" "*/ucm2" rm alsa-ucm-conf.tar.gz ``` Reboot... than check: ``` > cat /usr/share/alsa/ucm2/USB-Audio/USB-Audio.conf | grep 0db0:b202 # 0db0:b202 MSI MAG Z690 Tomahawk Wifi ``` Attaching the headphone now sound is emitted correctly from frontal AUX jack. After a few weeks I returned to the initial situation, the front AUX jack does not emit any sound. After a few weeks I returned to the initial situation, the front AUX jack does not emit any sound. I checked USB-Audio.conf file for being sure still MSI MAG Z690 Tomahawk Wifi MoBo is supported and output is confirmed. ``` > cat /usr/share/alsa/ucm2/USB-Audio/USB-Audio.conf | grep 0db0:b202 # 0db0:b202 MSI MAG Z690 Tomahawk Wifi ``` Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/371 Repository URL: https://github.com/alsa-project/alsa-ucm-conf
