I was helping a friend, trying to enable Compiz/Beryl in his Ubuntu box (Ubuntu Ultimate 1.4). He'd previously used an ATI X1300 card with the fglrx module that did not support texture_from_pixmap. This prevented him from using any kind of compositing window manager like Compiz/Beryl. So he removed the ATI card & was hoping to use the on-board Intel 965.
This afternoon I logged into his system through ssh. According to Ubuntu, the fglrx module has to be removed, so I removed it with #apt-get remove xorg-driver-fglrx. Still nothing worked after that. I had to install libgl1-mesa-glx. I tried this but kept getting the same error, something about unable to create symbolic link. Later in Synaptics I found out that removing the xorg-driver-fglrx had broken some 48 packages. fixing it involved installing libgl1-mesa-glx, but it's exactly libgl1-mesa-glx that refused to install. Now the system is in a state of dead lock. I can't install libgl1-mesa-glx, it will always give the same error & I can't reinstall xorg-driver-fglrx because it also needed libgl1-mesa-glx. So the system is now royally screwed, It's stuck forever with no hardware acceleration & the only choice left is to reinstall Ubuntu.
I can't understand how the "oh so much better than rpm" apt-get can allow me to screw-up the system so badly. 4 years of using urpmi, I've never seen anything this bad happen. The only time I had an issue was 2 years ago after upgrading my distro from Mandrake 10.1 to Mandriva 2006. Even this was easily fixed with #rpm --rebuilddb
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