The dmesg log looks OK to me at least the snd_hda_codec_realtek has the chance to configure. The weird part is why still dummy output. Can you give me the output of the commands "pactl list sinks`, `pactl list sources`, `aplay -l` and `arecord -l`?
Could you also try to boot the kernel with the parameter "snd_intel_dspcfg.dsp_driver=2" per https://gist.github.com/crojewsk/4e6382bfb0dbfaaf60513174211f29cb in "Kernel modules" section to see if it makes any difference? Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1915117 Title: [Regression] Audio card [8086:9d71] not detected after upgrade from linux 5.4 to 5.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1915117/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs