Steinberg UR22 Crackling and Clicks

[Takashi Iwai]

On Wed, 09 Dec 2020 13:10:17 +0100,
meschi at 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