Scripts for hybrid graphics discreete card disable on startup

Question

A lot of time ago I've used a simple script in /etc/rc.local to disable discrete graphics during bootup. But now it's not allowed to do anything with /sys/kernel/debug/vgaswitcheroo/switch when you not logged in as root (I can use it only after "sudo su"), so the script can not do anything. Any ideas how to escalate privileges or simply how to make it work?

Thanx in advance.

Ah, /etc/rc?.d/* scripts doesn't work this way too. – Oleg_Andreych Feb 09 '12 at 18:46 — Oleg_Andreych, Feb 09 '12 at 18:46
Possibly duplicate of http://askubuntu.com/q/20578/6969 – Lekensteyn Feb 09 '12 at 18:47 — Lekensteyn, Feb 09 '12 at 18:47

score 1 · Answer 1 · answered Feb 09 '12 at 19:08

1

I'm using

chmod -R 705 /sys/kernel/debug

chown -R $YOURUSERNAME:$YOURUSERNAME /sys/kernel/debug/vgaswitcheroo

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

in my rc.local and it works often for me (not always though).

answered Feb 09 '12 at 19:08

onse

1,109

seems to work randomly for me too, have you figured out why? – Ivan G. Jun 20 '12 at 19:26
no, sadly I have not. Are you using an AMD ATI card? – onse Jun 21 '12 at 08:34

Scripts for hybrid graphics discreete card disable on startup

1 Answers1