https://bugs.freedesktop.org/show_bug.cgi?id=107493
Bug ID: 107493 Summary: Screen goes blank while loading drm driver Product: DRI Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: esebaro@gmail.com
I have a PC with: MB: Asrock AM1B-ITX CPU: AMD Kabini Athlon 5350 APU iGPU: Radeon HD 8400 / R3 Series Displays: DVI Asus, HDMI Samsung
Kernels: 4.12/4.14/4.15/4.16/4.17 Drivers: radeon, amdgpu, amdgpu-dc
Booting in UEFI mode, EFIFB/SimpleFB
When the drm driver is loaded on system boot or when is loaded manually the screen goes blank. The screen content reappears after the driver has been loaded. I assume switching from efifb/simblefb to radeon/amdgpudrmfb causes this.