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Running ubuntu 12.10 on a dell XPS15. To disable the second GPU on my laptop i used this code in my rc.local file (/etc/rc.local):

OFF > /sys/kernel/debug/vgaswitcheroo/switch

This code is doing its job just fine, but when i shutdown or reboot the pc (both with terminal commands and with the buttons in the top right) the GUI disappears and i am stuck with just the wallpaper and my laptop does not power down.

Does anyone know how to fix the this?

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