ubuntu 12.04 双显卡切换

参考：

sudo add-apt-repository ppa:bumblebee/stable
sudo apt-get update
sudo apt-get install bumblebee bumblebee-nvidia

查看显卡状态：

lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1058 (rev ff)

ff表示显卡已经关了

Uninstall

If you're unsatisfied with Bumblebee, you can remove it via:

1. sudo apt-get install ppa-purge

2. sudo ppa-purge ppa:bumblebee/stable

If you want to keep some programs from the bumblebee repository, you can also suffice by removing Bumblebee only (including its dependencies):

1. sudo apt-get purge bumblebee

2. sudo apt-get --purge autoremove