Awful performance after upgrading Ubuntu from Feisty to Gutsy
I'm having some troubles with X since I upgraded Ubuntu. When I upgraded, I also recompiled the NVidia drivers (100.14.11, but I tried later with 100.14.19 and had the same problem) to bring them up to speed. Not sure what the cause is, but now X uses 100% of the CPU when doing anything other than idling, and performs really, really slowly. It looks like it's not passing anything to the graphics card.
When I try and run nvidia-settings, I get an error message saying "You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run `nvidia-xconfig` as root), and restart the X server."
I've attached my xorg.conf, latest Xorg.0.log and the output of glxinfo. I notice in glxinfo it says that direct rendering is disabled, but when I try setting the environment variable LIBGL_DEBUG to verbose and run glxinfo again, I don't get any more information.
Any ideas? TIA.
Mr Flibble's very cross.