This does not work for me. Seems to disable a PCI bus on my Dell Precision 7520 that causes both integrated mice (the touchpad and the nib) to stop working as well as the wifi/bluetooth card. Also breaks my TB-16 dock from working and therefore my monitors are blank, except for if I take it off the dock and use the integrated panel. I looked at dmesg and didn't see any error so I'm at a loss for what broke. 5.3.13-200.fc30.x86_64 even with the new boot screen works fine.

Beware amdgpu CIK users (R9 290, 390): https://bugs.freedesktop.org/show_bug.cgi?id=108781 GPU does not init properly:

kern  :err   : [Mon Nov 19 12:11:42 2018] [drm:amdgpu_vce_ring_test_ring [amdgpu]] *ERROR* amdgpu: ring 12 test failed
kern  :err   : [Mon Nov 19 12:11:42 2018] [drm:amdgpu_device_init.cold.28 [amdgpu]] *ERROR* hw_init of IP block <vce_v2_0> failed -110