Can anyone tell me if I need to re-install the nvidia driver if I add a second card?

Reason for this question is, the nvidia user guide says (really for windows users) I have to completely get ride of whatever nvidia driver i have currently, and reinstall with the latest version on the DVD.

I'm trying to avoid doing that. Last time I installed nvidia driver on ubuntu, it was a nightmare. Everything broke and took me weeks to restore my system.

Here is my setup : Ubuntu 14.04. Current card is GTX 660 Ti, new card is GTX 980 Ti.


According to NVIDIA's documentation at http://www.nvidia.com/Download/driverResults.aspx/92826/en-us you don't need to install a new driver, as the Nvidia Linux-Drivers support a wide variety of models.

As per today, the latest stable release of the NVIDIA propetiary drivers (352.55) support both cards:

GeForce 900 Series: GeForce GTX TITAN X, GeForce GTX 980 Ti, GeForce GTX 980, GeForce GTX 970, GeForce GTX 960, GeForce GTX 950


GeForce 600 Series: GeForce GTX 690, GeForce GTX 680, GeForce GTX 670, GeForce GTX 660 Ti, GeForce GTX 660, GeForce GTX 650 Ti BOOST, GeForce GTX 650 Ti, GeForce GTX 650, GeForce GTX 645, GeForce GT 645, GeForce GT 640, GeForce GT 630, GeForce GT 620, GeForce GT 610, GeForce 605

Nevertheless, I'd recommend backing up your system before you attempt swapping the graphic card.


  • Just installed the second card in the third PCIe slot. Reboot. Then ls -l /dev | grep nvidia*. I only see 'nvidia0' and 'nvidiactrl', where the second is the controller. No sign of my GTX 980. – horaceT Nov 18 '15 at 4:51
  • What do you see in "Additional Drivers"? – Eduardo López Nov 18 '15 at 7:19
  • i see a list of 7 nvidia drivers with names "Using NVIDIA binary driver - version 346.96 from nvidia-346 (proprietary, tested)", some say "legacy". But they are all greyed out. The only active item is "Continue using a manually installed driver" – horaceT Nov 18 '15 at 17:58
  • Turns out the driver version is 340.29. Maybe too old for GTX980? – horaceT Nov 18 '15 at 19:33
  • Afraid so, your driver only includes until the 800M series... Nevertheless, you should be seing the latest version in that screen. If you don't, open a terminal window and do a "sudo apt-get update" followed by a "sudo apt-get upgrade" and try again. Do that with the old card installed. Update, select the newest driver, and switch to the new card. – Eduardo López Nov 18 '15 at 21:00

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