White flash on startup resolved after KMS

Hi there,

Recently I noticed a white flash on startup, right after the kernel mounts the root filesystem. I figured that this was caused by my graphics driver (amdgpu driver with RX-480). After I put the amdgpu module in the initcpio, the issue was resolved. However I still wonder what caused it. The flash looks like a regular small grid of all kinds of colors. It's there for a split second.

Other people might experience the same thing, is it possible to include this fix in mhwd? How would I write such a patch myself?

Thank you in advance!

CC @philm

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