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.
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.
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
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.
/sys/kernel/debug
filesystem is mounted...
Oct 16, 2011 at 17:23