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So I am trying to install the NVIDIA GPU Driver Version 346.35 (http://www.geforce.com/drivers/results/81252) for my GTX 970 and am running into a lot of issues. I have tried to run the file and get an error saying that I cannot install the driver while I am using X server. I have searched for a fix to this and have had no luck, as the most common response is to stop lighdm from the terminal, however; when I do this my screen goes black and won't allow me to pull up a terminal, or do anything. Help! I need 1080p!

I should probably mention that the driver installation I performed a couple weeks ago when I initially installed Ubuntu had worked, but apparently stopped working recently and I am not sure why. I think it was after I updated the driver on the Windows side or switched the port my monitor was plugged into, but I don't know enough to understand how either of these would affect my display on my Ubuntu OS.

Connor
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First try: askubuntu > nvidia-drivers-mystery

and use @robblue2x's method.

Finishing with sudo apt-get install nvidia-346

What screen resolution are you using? eg. 1920x1080 (Full HD), 2560x1600, 4K, etc.

And what port/cable? eg. DisplayPort, DVI Dual-Link, etc.

You may need to remove your earlier effort (driver download, from Nvidia).

Also, do you even need a driver for 1920x1080?

Does the 'inbuilt' Nouveau driver not work?

See: nouveau > feature matrix and 'NV110' (right most) column.

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david6
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