Just a heads up.. Noticed this post digging into the same exact syptoms with a schiit hel on arch linux. (5.8.8 kernel). I was able to resolve the lack of audio by installing and using pulsemixer. Using pulsemixer if you hit f3 (cards) and set the audio source from off to digital stereo duplex it should prevent alsa crashing and actually allow the audio source to work.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1267866 Title: usb audio: cannot get ctl value: req = 0x81, wValue = 0x0, wIndex = 0x1400, type = 3 Status in alsa-driver package in Ubuntu: Expired Bug description: I typed in terminal: alsamixer Then I wanted to change the sound card (I have connected an external sound card via USB). I pressed F6, selected the external sound card and pressed enter. alsamixer crashed and outputed: cannot load mixer controls: Broken pipe My ALSA information is located at http://www.alsa- project.org/db/?f=1871c086b58a2965d18cfb38483794788187edfb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1267866/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
