关闭DSL (校园内网) :
sudo poff dsl-provider
尝试 套用华硕/宏碁机器的通病
华硕:
echo "options asus_nb_wmi wapf=1" | sudo tee /etc/modprobe.d/asus_nb_wmi.conf
宏碁:
echo "blacklist acer-wmi" | sudo tee /etc/modprobe.d/blacklist-acer-wmi.confubuntu peizhi
原文：http://www.cnblogs.com/To-Leven/p/5040465.html
