7.1.0-0.rc7.260611g9716c086c8e8.50.fc45.x86_64 is last still working for me
after upgrade only screen buffer console will show, not even GDM shows up
Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Strix [Radeon 880M / 890M] (rev c1)
You are testing an unreleased and still in development kernel. Thanks for testing it!
You need to report the issue you have found to the kernel maintainers and if you can to the AMDGPU maintainers.
Until this is released the issue is not suitable for the Common Issues category.