$ dpkg -l | grep nvidia
ii nvidia-304 304.116-0ubuntu0.0.1 NVIDIA binary Xorg driver, kernel module and VDPAU library
ii nvidia-common 1:0.2.44.2 Find obsolete NVIDIA drivers
ii nvidia-current 304.116-0ubuntu0.0.1 Transitional package for nvidia-current
ii nvidia-settings 331.20-0ubuntu0.0.1 Tool for configuring the NVIDIA graphics driver
ii nvidia-settings-304 331.20-0ubuntu0.0.1 Transitional package for nvidia-settings
[sorry for the flurry of speparate posts]
$ dpkg -l | grep nvidia 0ubuntu0. 0.1 NVIDIA binary Xorg driver, kernel module and VDPAU library 0ubuntu0. 0.1 Transitional package for nvidia-current
ii nvidia-304 304.116-
ii nvidia-common 1:0.2.44.2 Find obsolete NVIDIA drivers
ii nvidia-current 304.116-
ii nvidia-settings 331.20-0ubuntu0.0.1 Tool for configuring the NVIDIA graphics driver
ii nvidia-settings-304 331.20-0ubuntu0.0.1 Transitional package for nvidia-settings