Bug#968181: 968181 and 968188 are fixed in 5.10.5-1
Control: close 968181 5.10.5-1
Control: close 968188 5.10.5-1
968181 missing DRI/DRM support on Raspberry Pi
968188 4K display resolution is not recognized with Raspberry Pi 4B
I confirm that vc4.ko in 5.10.5-1 can show 4K output and it provides /dev/dri/card0.
The gdm3 display manager and the gnome session (both using wayland) work well
with vc4.ko on my raspi 4B 8GB mode.
Some comments:
The default CMA size 64 MB is insufficient for gdm3 with 4K resolution as reportet at
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=980536
"disable_fw_kms_setup=1" is necessary in "config.txt" of raspi, as reported at
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977642
The latter is actually a bug in the upstream kernel. Today I was told that
it has been fixed upstream at the dri-devel mailing list from Maxime Ripard.
Best regards, Ryutaroh Matsumoto
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