Comment 18 for bug 1888570

Just one more information:
Befor the bug ocours I had two kernels that gets maintaind by apt: The one without "hwe" and the newer hwe versions. Because the non HWE kernel wasn't used (pulled in via linux-generic).
While searching the problem I found that i can remove this non used kernel by doing:
apt purge linux-generic linux-headers-generic linux-image-generic linux-modules-nvidia-440-generic
Now I had only kernel 5.3.0-61-generic running. The newer ones 5.3.0-62-generic and 5.4* will all result in the mentioned poweroff problem.