When I use System Settings-Additional drivers- and try to activate; NVIDIA binary Xorg driver, kernal module and VDPAU library,
I get this message; SystemError:Unable to correct problems,you have held broken packages.
Is there anyway to fix this? Ubuntu 12.04 LTS
sudo apt-get update
&sudo apt-get dist-upgrade
&lspci -nnk | grep -iA2 vga
. What is the output ? Edit the OP and add the results.