notebook run ubuntu 15.04 is too hot
1、run terminal by root user
2、add follow text to file /etc/rc.local in front of "exit 0"
echo IGD > /sys/kernel/debug/vgaswitcheroo/switch
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
The first one is to switch to the integrated graphics;
The second sentence is to turn off unconnected video card.
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