New answers tagged graphics
It was a kernel bug. For this version of the kernel, a line in the radeon KMS drivers needs to be tweaked and the kernel rebuilt. Most of this is moot, though, because it is fixed in newer kernel versions.
From the error message I would guess that means that the "diver is not new enough to support the nvidia-settings page" This is none too surprising since the GFX 5 series is over 10 years old which is like 80 in human years. The amazing bit is that nVidia maintained driver support for that antique through 2008.
You can see in your dmesg the order of discovery of the graphics chips. If they vary with the time, you could perhaps fix this compiling your stuff in your kernel not as a module. Or trying a workaround putting a rule that indicate the order of loading for the modules concerned...
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