Hello. I installed Fedora 42 today in a dual boot config and I am not able to get any audio output. I am using a Behringer UMC404HD audio interface. Interface is working fine on same PC on Windows and works fine when plugged into my laptop running Nobara 42. I found this quick doc earlier and followed some of it, installing ALSA firmware, reinstalling pipewire components, adding my user to the audio group, and rebooting, but still no audio. Something that might be helpful is when I run alsamixer and press F6, then select my audio interface, it exits with: “cannot load mixer controls: No such file or directory”. However, trying the same on my laptop (Nobara) works and does not exit
That’s the first thing I did. My bad for not mentioning it. The interface shows up, is selected, and not muted. I also tried the Line B output as well as opening the sound settings and trying the test option on all playback devices - never got any audio.
I tried that and the interface shows up when I press F6, but when I select it and hit enter alsamixer closes and returns to the terminal with an error message:
Looking at the audio profile, I see the interface’s outputs are separated. I’m wondering if you changed the audio profile from the default to something else. You didn’t use Pro Audio, did you?
In my experience, even when recording and playing back in multi-channel mode, the interface typically handles one input and one output. When multiple channels are involved, routing is usually handled within the recording software like a DAW and its session manager.
Can you test it with one input and one output on the default audio profile of KDE plasma?
Everything looks ok except that default 0 is nvidia sound card that is problem you should try pavucontrol application and configuration try to set your sound card
Ok qustion you triple boot your system do you shutdown nobara and windows systems before you run fedora because sometime different systems could interfere kernel of fedora and make trouble to it. If you could go to win and nobara and shutdown please not reset do shutdown .Reboot system and chose fedora kernel from grub menu
