https://bugs.freedesktop.org/show_bug.cgi?id=105251
--- Comment #15 from dergottdergrunten@gmail.com --- I think my issue is related. I get black screen boots roughly every 2/3 times I boot up my computer. This last time, it booted up, kernel panic'd and I could still see the output so I took some pictures.
https://imgur.com/gallery/T69zIjX
Info:
$ uname -a Linux itx-dev.local 4.17.12-arch1-1-ARCH #1 SMP PREEMPT Fri Aug 3 07:16:41 UTC 2018 x86_64 GNU/Linux
$ cat /proc/cpuinfo processor : 5 vendor_id : AuthenticAMD cpu family : 23 model : 17 model name : AMD Ryzen 5 2400G with Radeon Vega Graphics stepping : 0
$ pacman -Qs amdgpu local/xf86-video-amdgpu 18.0.1-2 (xorg-drivers) X.org amdgpu video driver
$ pacman -Qs mesa local/glu 9.0.0-5 Mesa OpenGL Utility library local/lib32-libva-mesa-driver 18.1.5-1 VA-API implementation for gallium (32-bit) local/lib32-mesa 18.1.5-1 An open-source implementation of the OpenGL specification (32-bit) local/lib32-vulkan-radeon 18.1.5-1 Radeon's Vulkan mesa driver (32-bit) local/libva-mesa-driver 18.1.5-1 VA-API implementation for gallium local/mesa 18.1.5-1 An open-source implementation of the OpenGL specification local/mesa-vdpau 18.1.5-1 Mesa VDPAU drivers local/vulkan-radeon 18.1.5-1 Radeon's Vulkan mesa driver