Command at startup or login

Question

I would like to run the following command after every boot (or login).

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

It turns off my discrete GPU. To what script should I add this command. I would appreciate any help.

score 2 · Answer 1 · answered Oct 16 '11 at 17:30

2

Instead of running a script you could install the package sysfsutils and add the line

kernel/debug/vgaswitcheroo/switch=OFF

to the file /etc/sysfs.conf

answered Oct 16 '11 at 17:30

don_jones

196

score 0 · Answer 2 · answered Oct 16 '11 at 17:14

You need root privileges to run that command, so you can add it to /etc/rc.local (but before the exit 0 line) to have it run at the end of the boot process.

Otherwise you can add it to /etc/gdm/PostLogin/Default to have it run after any graphical login (when using GNOME GDM, default for Ubuntu before 11.10). If the file does not exist, just rename /etc/gdm/PostLogin/Default.sample and edit it.

Command at startup or login

2 Answers2