@Janos, Since it is a Acer laptop, it is highly possible that the existing ucm doesn't support your machine. please refer to /usr/share/alsa/ucm/sof- skl_hda_card/*.conf and do a bit change on them according to your machine.
-- 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