在ubuntu上安装CUDA8.0（已有7.5）碰到的问题记录

安装cuda8.0参考的文档：

http://blog.csdn.net/yhaolpz/article/details/71375762

http://www.jianshu.com/p/69a10d0a24b9

http://blog.csdn.net/zshouyi/article/details/63679539



Completely uninstall anything in the ubuntu repositories with nvidia-*. I used synaptic and did a purge, AKA completely uninstall programs and configuration.

安装cuda8.0会自动安装驱动，所以得卸载nvidia驱动

sudo apt-get --purge remove nvidia-*

如果提示说要关闭X server的话：

sudo /etc/init.d/lightdm stop

查看cuda是否安装成功：

cd /usr/local/cuda/samples/1_Utilities/deviceQuery
sudo ./deviceQuery