https://bugzilla.kernel.org/show_bug.cgi?id=209417
--- Comment #4 from Alex Deucher (alexdeucher@gmail.com) --- yeah, if it was working with 5.7.0 and not working with 5.8.0, you can just do a bit bisect on https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ between the v5.7 and v5.8 tags. Google for "kernel git bisect howto".