Solution given in https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1867474/comments/3 does not resolve issue on my install. I've attached the dmesg
Solution given in https:/ /bugs.launchpad .net/ubuntu/ +source/ alsa-driver/ +bug/1867474/ comments/ 3 does not resolve issue on my install. I've attached the dmesg