you installed 20.04 on your machine, but the kernel version in your log is 5.11.0-generic, how did you install the 5.11 kernel under 20.04, I remember it is 5.8 kernel under 20.04 if you run update.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1933361 Title: Audio Problem, soundcard not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1933361/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs