The same system as https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1973167/comments/6 no longer freezes on boot with 4.15.0-189. Sound also works.
The same system as https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1973167/ comments/ 6 no longer freezes on boot with 4.15.0-189. Sound also works.