[Bug 201183] AMDGPU Dual displays and only DP screen works after grub.

https://bugzilla.kernel.org/show_bug.cgi?id=201183

--- Comment #6 from marten (marten.b@gmail.com) --- (In reply to Nicholas Kazlauskas from comment #4)

Do you only see this problem occur before you start an X session?

It might help if you could post a log from 4.18 with drm.debug=6 included in your boot parameters.

Im running Fedora 28 so it wayland. When I remove the quiet from the kernel line the HDMI display works so a few seconds until the GUI for the boot drive encryption displays only on the second display only.

I attached the file with drm.debug=6