With the built-in radeonfb and KMS enabled by default, DRM is broken on eMacs.
See e.g. FDO#27502 [1].
Disabling KMS in /etc/modprobe.d/radeon-kms.conf works around the issue.
Not sure what a real fix would be in this case - is there a framebuffer driver that can coexist with drm?
Kernel: Linux 2.6.32-5-powerpc
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
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