I think the problem may even more specifically come from the package "xorg-driver-fglrx", which is installed automatically when I try to install the radeon driver. I suspect this because if the radeon driver is present, but not used in xorg.conf (using driver "VESA" there instead), my system refuses to boot.
If I uninstall "xorg-driver-fglrx", using driver "radeon" in xorg.conf, my system boots but I get the runaway XOrg process (> 95% CPU as seen in top).
Similarly if the package "xorg-driver-fglrx" is installed and I use the radeon driver in xorg.conf, my system does not boot completely.
The only way I can currently get my system to boot and be semi-usable is to uninstall all the video drivers, and use the vesa driver. This is of course not even close to sub-optimal, as it loads at 640x480.
I have attached the Xorg.0.log and dmesg outputs from each of three conditions; running the vesa driver (radeon uninstalled completely), running the vesa driver (radeon installed but not used in xorg.conf), running the radeon driver.
I welcome any insight anyone may have on this. Bonus points for anyone who can explain why on earth kubuntu also decided to trash my wife's login account on my laptop.
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