Workaround: Comment out the following line:
ATTRS{idVendor}=="08bb", ATTRS{idProduct}=="2902", ENV{ACP_PROFILE_SET}="behringer-umc22.conf"
...wherever it appears in /lib/udev/rules.d. For me this is in 90-{pipewire-alsa,pulseaudio}.rules.
I don't understand why this workaround helps. I found it here: https://www.reddit.com/r/linuxaudio/comments/qerbqa/suddenly_cant_select_input_of_behringer_umc22/
Workaround: Comment out the following line:
ATTRS{idVendor} =="08bb" , ATTRS{idProduct }=="2902" , ENV{ACP_ PROFILE_ SET}="behringer -umc22. conf"
...wherever it appears in /lib/udev/rules.d. For me this is in 90-{pipewire- alsa,pulseaudio }.rules.
I don't understand why this workaround helps. I found it here: https:/ /www.reddit. com/r/linuxaudi o/comments/ qerbqa/ suddenly_ cant_select_ input_of_ behringer_ umc22/