try with vga switcheroo
Originally Posted by trenthawkins
i do not know debian systems
ensure that exists /etc/X11/xorg.conf.d/10-monitor.conf (xorg.conf is deprecated)
Look at Device section. Driver fglrx must be in if you want to use dedicated graphics. Intel for integrated graphics.
If you use intel, I think that you have to load fglrx kernel module at startup for enery saving.
I had your problems, like head and fan at 100%, because the drivers where not correctly loaded.
Now they are loaded when X starts.