ubuntu 14.04 双显电脑 安装 cuda7.5

1.  download .run file

enter the web page: http://developer.download.nvidia.com/compute/cuda/7.5/Prod/local_installers/cuda_7.5.18_linux.run

save file cuda_7.5.18_linux.run

2. shut down X server

first, log out

second, CTRL + ALT + F1 enter Command line and login useing your name and passwd

third, kill X server by command: sudo server lightdm stop

then, sudo init 3 and sudo sh cuda_7.5.18_linux.run

Note when installing cuda_7.5.18, do not install openGL

3. SetPath

(1). set Path

sudo nano /etc/environment

appending: :/usr/local/cuda-7.5/bin

into PATH

(2) set LD_LIBRARY_PATH

nano ~/.bashrc

appending : export LD_LIBRARY_PATH = $LD_LIBRARY_PATH:/usr/local/cuda-7.5/lib64