I have noticed similar issues with ALC892, please have a look at Bug #975135. For me alsa-only (with pasuspender) seems to keep sound quality ok, but that setup has issues mentioned at Bug #986774.
I have noticed similar issues with ALC892, please have a look at Bug #975135. For me alsa-only (with pasuspender) seems to keep sound quality ok, but that setup has issues mentioned at Bug #986774.