@hui.wang I have a lenovo X1 7th gen; 20QD.
Alsamixer reports /proc/asound/cards as: sof-skl_hda_car - sof-skl_hda_card LENOVO-20QDCTO1WW-ThinkPadX1Carbon7th-20QDCTO1WW There are some changes between what I see today in alsamixer and what was shown before. Alsamixer now shows these levels after a reboot. name level Mic Boost 53 PGA10.0 10 83 PGA11.0 11 83 PGA2.0 2 Ma 46 PGA4.0 4 MA 32 -- 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