Comment # 9 on bug 1094394 from Stefan Dirsch

Hmm. Still I believe it would be worth a try to install our kernel-of-the-day.
You can install it in parallel to the kernel of Leap 15.

  https://en.opensuse.org/openSUSE:Kernel_of_the_day

Unfortunately we haven't seen the issues on our Coffeelake machines on Leap 15,
which you are reporting.