laptop backlight control with X

Louis E Garcia II louisg00 at bellsouth.net
Fri Oct 27 22:10:28 UTC 2006


On Fri, 2006-10-26 at 23:48 -0700, Wolfgang S. Rupprecht wrote:
> On Fri, 2006-10-27 at 00:12 -0400, Louis E Garcia II wrote:
> > On Thu, 2006-10-26 at 22:02 -0400, Tony Nelson wrote:
> > > On Thu, 2006-10-26 at 18:45 -0400, Louis E Garcia II wrote:
> > > > I noticed that the backlight on my laptop will turn off in 20 min of
> > > > inactivity. How do I change this to 10 min? I fiddled with
> > > > gnome-power-manager but didn't help. Is this an X setting?
> > > > 
> > > > -Louis
> > > 
> > > It's part of xscreensaver, if that's installed.  Don't know about
> > > gnome-screensaver (sp?).
> > > -- 
> > > ____________________________________________________________________
> > > TonyN.:'    The Great Writ     <mailto:tonynelson georgeanelson com>
> > >       '      is no more.             <http://www.georgeanelson.com/>
> > 
> > gnome-screensaver has nothing for dpms, not even in gconf. xscreensaver
> > is not installed. Would it be hard coded in X?
> > 
> > -Louis
> 
> You can adjust it in xorg.conf or with xset(1).  The option lines
> below do the magic.  For CRT monitors I like to stagger the times a
> bit to minimize thermal cycling damage.  blank/standby/suspend/off get
> set to 10/11/12/13 minutes.  For laptop LCD's it hardly matters.  I
> just turn the sucker off in one go and with a shorter timeout.
> 
> >From my fc5 xorg.conf file:
> 
> Section "ServerLayout"
> #	Identifier     "Default Layout"
> 	Identifier     "ancho, ATI Radeon-200M,builtin WXGA LCD"
> 	Screen      0  "Screen0" 0 0
> 	InputDevice    "Keyboard0" "CoreKeyboard"
> 	InputDevice    "Synaptics" "CorePointer"
> 	InputDevice    "Mouse0" "AlwaysCore"
> 
> 	# added these next 4 -wsr
> 	# LCD monitors seem to only have two modes, on/off
> 	# don't bother going through all the intermediate modes.
> 	Option		"blank time"	"5"	# 5 minutes
> 	Option		"standby time"	"0"     # disable
> 	Option		"suspend time"	"0"     # disable
>       Option		"off time"	"5"	# same as blank time.
> EndSection
> 
> -wolfgang

I'm on fc6 and the xorg.conf lines didn't work. the manpage said to
put these under "ServerFlags" which didn't work either. The xset
command works but I'm looking for something more permanent.

Seems gnome-power-manager does nothing at all.

-Louis




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