Sony with Intel 815 won't turn off screen backlight

chris1379 · 11-11-2010, 11:32 AM

I can't turn off the LCD backlight on my Sony PCG-FX150. I'm currently running Ubuntu 10.04 but Fedora 14 has the same issue.

Code:

xset dpms force off'

turns off the display but the backlight stays on. I can adjust the brightness with Fn+F5/F6 but can't turn it off. Windows has no problems with it.

Thanks,
Chris

H_TeXMeX_H · 11-11-2010, 11:44 AM

Make sure to have the 'sony-laptop' module inserted. See:

http://www.kernel.org/doc/Documentat...ony-laptop.txt

on how to use it.

chris1379 · 11-12-2010, 01:35 AM

The sony-laptop module seems to have been installed with Ubuntu.

H_TeXMeX_H · 11-12-2010, 07:33 AM

Also, DPMS should be enabled in xorg.conf if you want the screen to turn off.

chris1379 · 11-13-2010, 02:43 AM

Quote:

Originally Posted by H_TeXMeX_H

Also, DPMS should be enabled in xorg.conf if you want the screen to turn off.

It is.