[HOW-TO] Disable Nvidia Discrete Graphics on Asus N53SV with Ubuntu 11.04
This solution worked for me. 1. First install acpi-call-tools sudo apt-get install acpi-call-tools 2. sudo modprobe -v acpi_call 3. sudo echo “\_SB.PCI0.PEG0.GFX0.DOFF” > /proc/acpi/call Note : I had to face permission denied when I did sudo as well. This quick fix solved that as well. sudo chmod 777 /proc/acpi/call