Finally I upgraded my Ubuntu 20.10 to "groovy-proposed" and the issue seems to be fixed. More likely this bug is a duplicate of https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1901922 .
Finally I upgraded my Ubuntu 20.10 to "groovy-proposed" and the issue seems to be fixed. /bugs.launchpad .net/ubuntu/ +source/ alsa-lib/ +bug/1901922 .
More likely this bug is a duplicate of https:/