Could always install a different kernel and see what happens. Direct package recommended for testing, such as linux-image-4.18.0-18-generic maybe. If that works, you might switch metapackages for that track (linux-image-generic-hwe-18.04).
Could always install a different kernel and see what happens. Direct package recommended for testing, such as linux-image-4.18.0-18-generic maybe. If that works, you might switch metapackages for that track (linux-image-generic-hwe-18.04).