On 2021-02-28 21:00:52 (+0200), tasos tsesmetzis wrote:
@David Runge: Many thanks for your reply.
Kernel log messages include no errors in v5.10.16. On the other hand there are no muted output channels in alsamixer. Also, the correct device is selected.
The output of 'aplay -l' is identical in both kernel versions. To playback files, aplay and audacity where used. JACK is started either with the default device ('jackd -d alsa'), or by selecting hw:0 ('jackd -d alsa -d hw:0') but with no success.
That is odd. Maybe a regression in the alsa modules. You could try getting some more information out of the alsa upstream (e.g. [1] or [2]). Other than that: I hope to upgrade the kernel to > 5.11 soon. Maybe that will fix your issues. You may of course also try linux-rt-lts. Best, David [1] https://alsa-project.org/wiki/Mailing-lists [2] https://github.com/alsa-project/alsa-lib -- https://sleepmap.de