On 05/17/2014 02:30 PM, John Paul Adrian Glaubitz wrote:
> After some more testing it turned out that adding "video=radeonfb:off"
> to the kernel command line fixes the problem and makes modesetting
> work on the Mac Mini G4.
> 
> The driver is actually blacklisted by default:
> 
> root@test-adrian1:~# grep radeonfb /etc/modprobe.d/*
> /etc/modprobe.d/fbdev-blacklist.conf:blacklist radeonfb
> root@test-adrian1:~#
> 
> However, it's still loaded before the actual root filesystem is mounted
> and is later unloaded. Even after then, modesetting doesn't work after
> loading the "radeon" module.

did you rebuild your initramfs after blacklist the module?,
/etc/modprobe.d contents should be in initramfs

$ lsinitramfs /boot/initrd.img-3.2.0-4-amd64  |grep black
etc/modprobe.d/blacklist.conf
etc/modprobe.d/alsa-base-blacklist.conf
etc/modprobe.d/fbdev-blacklist.conf
scripts/init-top/blacklist


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