Uninstallation Testing in nVidia Proprietary Drivers in Natty Week01 (archived)

$ dpkg -l '*nvidia*'
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==============-==============-============================================
un nvidia-180-mod <none> (no description available)
un nvidia-185-mod <none> (no description available)
ii nvidia-common 0.2.28 Find obsolete NVIDIA drivers
rc nvidia-current 270.30-0ubuntu NVIDIA binary Xorg driver, kernel module and
un nvidia-current <none> (no description available)
un nvidia-glx <none> (no description available)
un nvidia-setting <none> (no description available)

$ glxinfo | grep 'renderer'
OpenGL renderer string: Software Rasterizer

$ glxgears
4337 frames in 5.0 seconds = 867.282 FP

Instead of Unity I get a Gnome desktop.

Same as Sheerio (beside of the TORCS FPS) but: Both before the installation and after the deinstallation of the proprietary driver I got a fallback standard Gnome desktop. lsmod reported that nouveau is running though. Only after installing the experimental free driver I got the Unity desktop and basic 3D capabilities (flickering in games, ~22FPS in Nexuiz at high versus 40-50FPS with the proprietary driver; Unity is running fine though) back.

/var/log/Xorg.0.log reports:
[ 21.394] (EE) Failed to load module "nvidia" (module does not exist, 0)
[ 21.394] (II) LoadModule: "nouveau", OK
[ 21.394] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
...
[ 21.497] (EE) Failed to load module "nv" (module does not exist, 0)

$ glxgears
3241 frames in 5.0 seconds = 648.093 FPS
Glxgears run well.

$ torcs
TORCS, The Open Racing Car Simulator cannot be driven. It's too slow.