Comment # 50
on bug 109206
from Ondrej Lang
I tested this yesterday with kernel 5.1.8 and if the file raven_dmcu.bin is present in the /lib/firmware/amdgpu/ folder when you are updating the kernel (or manually rebuilding the initramfs), the computer will boot with a blank screen next time. There are 2 pieces to this. The linux-firmware package provides the binary files (i.e. the raven_dmcu.bin) so every time this package gets updated, you should rename/move the file and rebuild the initramfs. The linux-firmware updates are not as frequent as the kernel updates so if you do the workaround, you might go through several kernel updates without issues, but once linux-firmware updates, you have to repeat the workaround... All the patch in the kernel will do is to ignore the raven_dmcu.bin file automatically (for raven 1 cpus) when building the initramfs so you don't have to rename/move it every time linux-firmware updates.
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