Dell XPS15 9550
Kernel 5.6.7 hangs during reboot and power off. This has happened on all kernels after 5.4.20-200 with BIOS version 1.13.1
I have downgraded the BIOS to 1.12.0 and everything works fine including power off and reboot on all kernels.
What do I need to do to report a kernel bug to get this fixed ?