I have had this on 19.10 (see https://bugs.launchpad.net/ubuntu/+source /linux-oem-osp1/+bug/1864061/comments/42) and on 20.04.
Adding "options snd-hda-intel dmic_detect=0" to the end of /etc/modprobe.d/alsa-base.conf has apparently fixed the issue on 20.04 (microphone is still working). I probably would have tried this earlier if anyone (@Hui Wang ?) had explained a bit more understandably what the problem is, what the workaround does, why it fixes the issue, and what the possible side effects are. Also the bug description says this issue does not arise in focal (20.04), which is incorrect in my and several other commenters' cases. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1864061 Title: PCI/internal sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1864061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
