Bring this to the attention of the person who wrote the offending commit: On Sun, Jun 28, 2020 at 03:19:06PM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=208353 > > Bug ID: 208353 > Summary: Distorted Audio Output Through USB C Docking Station > Product: Drivers > Version: 2.5 > Kernel Version: 5.4.49 > Hardware: All > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: USB > Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx > Reporter: pbui@kernel.bx612.space > Regression: No > > Created attachment 289909 > --> https://bugzilla.kernel.org/attachment.cgi?id=289909&action=edit > Output of alsa-info.sh > > With kernel 5.4.49 the audio output through my Dell WD19 Docking station is now > laggy and distorted (sounds like only bass frequencies are emitted). > Previously, audio output through the dock worked just fine with all versions of > 4.19.x and 5.4.x. > > After looking through the changelog for 5.4.49, I was able to locate the > offending patch: > > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/patch/?id=aba41867dd66939d336fdf604e4d73b805d8039f This is upstream commit f0bd62b64016 ("ALSA: usb-audio: Improve frames size computation"). Alan Stern > Reverting this patch allows audio to play normally through my docking station.
