KMS seems broken in vc4.ko

[Maxime Ripard]

On Wed, Mar 17, 2021 at 06:12:33PM +0900, Ryutaroh Matsumoto wrote:
> >> I mean, it depends on what mesa and kmscube are trying to do? Can you
> >> enable drm.debug and see if there's any clearer error message?
> > I have no access to my RPi4B now. I will report it back when I return from my travel.
> 
> I got the following kernel log by drm.debug=1 in cmdline.txt:

Can you try with drm.debug=0x1f ?

Maxime
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