I compiled 5.9.1 with:
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
# CONFIG_TRANSPARENT_HUGEPAGE is not set
And after setting the provider output source and attempting to bring up the external display I get a kernel crash.
The computer becomes unresponsive, so the best I can get is a photo, which is attached here:
