Re: Nvidia Kernel Conflict
When an update nvidia driver is installed, all previous driver elements have first to be removed [or at least deactivated ].
If the downloaded nvidia-installer is used, this is done as part of the installation, but not necessarily so if the Ubuntu nvidia-current driver is installed by dpkg or jockey, from 'Additional Drivers'.
To cure it you need to shut down the graphics xserver; remove --purge all nvidia* components; reinstall the later driver and reboot.
How you do the last depends on how you got the 304.51 driver; either use "apt-get install nvidia-current", if you got it from the x-swat ppa, or run the downloaded nvidia '.run', file if that is what you did before.
If you are in doubt, run
to confirm if nvidia-current is installed.
sudo apt-cache policy nvidia-current
So, assuming you are using ubuntu 12.04 or 12.04.1, from the tty [ 'Ctrl+Alt+F1'] login and run:
You may get a script failed message and other options, accept them, navigating with the 'Tab' key & pressing 'Return' to accept.
sudo service lightdm stop # to stop the xserver
sudo apt-get remove --purge nvidia* # to remove all driver elements
# then either:
sudo apt-get update
sudo apt-get install nvidia-current
cd /home/user/Downloads # put your username in place of 'user',
# and the folder where the nvidia '.run' file is, if not 'Downloads'
ls # to check you are in the right place and the spelling of the file name
sudo sh NVIDIA- # Press 'Tab' to complete the name and press 'Return'
When complete run' sudo reboot'.
You should then be AOK. Please Post how you get on, or with any queries.
"Better Solutions may bring Worsened Problems": After Lao Tse, b. circa 405BC. a contemporary of Confucius, who died circa 600BC.
They did things differently in those days, apparently!!