On Wed, 09 Dec 2020 13:10:17 +0100, meschi@posteo.de wrote:
Then try to pass implicit_fb=1 option to snd-usb-audio module. It's a new option that was added recently.
Takashi
Nice, that did the trick. there was a small glitch on first playback but I can not reproduce it now. Playback seems glitch-free now. I will test it with pulseaudio in the gui if I can. It's not quite easy to test, because the system locks up after a while with the new kernel and gnome 3. I will also test concurrent playback and recording, too. Thank you very much, that was a huge help!
Good to hear. If the implicit_fb option works, we can add a static quirk table entry easily. Just add IMPLICIT_FB_GENERIC_DEV() with the device ID to playback_implicit_fb_quirks[] table in sound/usb/implicit.c.
Takashi