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#1 2005-02-05 05:38:39

Father
Member
From: Australia
Registered: 2004-06-01
Posts: 209

LCD Monitor not powering down after X idle time

i posted about this here http://bbs.archlinux.org/viewtopic.php?t=4155 and got no help.. so here goes again

essentially the problem is, my monitor doesnt go into power saving mode after X amount of time.
it remains powered with the backlight on and everything.. which worries me..

the 3 options i xscreensaver dont make a difference, those being:
standby after
suspend after
off after

to test them i set them all to 0 (disabled) and then one at a time set them to 1 minute... non send my monitor into power saving mode.. the monitor just goes black and the backlight remains on.. ive resorted to turning my monitor off every time i leave my computer.. which i DONT want to do..

any help would be GREATLY appreciated..
thanks

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#2 2005-02-05 06:37:19

Hum
Member
Registered: 2004-06-13
Posts: 46

Re: LCD Monitor not powering down after X idle time

Do you have dpms setup for your video card? If you do try "xset dpms 60 60 60" which will turn off the monitor and backlight after 60 seconds of inactivity

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#3 2005-03-22 13:01:04

Father
Member
From: Australia
Registered: 2004-06-01
Posts: 209

Re: LCD Monitor not powering down after X idle time

just for future reference.. ive managed to get my monitor to standby..
however, my monitor only blanks with the `standby' and `suspend times'.. i have to use the `offtime' setting to get it to standby

in my xorg.conf under the `ServerFlags' section, i added the following

# Energy Saver settings

# Time in minutes
#    Option "StandbyTime"  "15"
#    Option "SuspendTime"  "20"
    Option "OffTime" "15"

and under my `Monitor' section i added the following

# Energy Saver settings
    Option "DPMS" "on"


you can then test the dpms works by entering at a console

xset dpms force off

and the monitor should stand-by

if not, try enabling dpms without an X restart with

xset +dpms

and then try the previous command again

you can also use `standby' or `suspend' in the place of `off'

if the monitor went into stand-by, then it should automatically stand-by after the time periods entered in the xorg.conf file after X is restarted..


for laptop users, the LCD backlight shouldnt go off with just this, i believe that is part of ACPI / APM.
if you have experience compiling a kernel, under the `power management' settings there is a checkbox for LCD backlights. this is only needed for laptops, not desktop LCD monitors.
I have no experience with using this however.

hope that helps someone.

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#4 2005-03-22 15:55:33

nggalai
Member
From: Switzerland
Registered: 2004-08-01
Posts: 215
Website

Re: LCD Monitor not powering down after X idle time

I have a similar problem. xset dpms force off turns off the backlight, but nothing happens "automatically" after the 15 minutes I have specified in xorg.conf. XScreensaver, too, just blanks the screen, but doesn't turn off the backlight.

I followed Father's suggestions, still no dice ...

93,
-Sascha.rb

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#5 2005-05-11 21:22:25

iBertus
Member
From: Greenville, NC
Registered: 2004-11-04
Posts: 2,228

Re: LCD Monitor not powering down after X idle time

I was just wondering if any progress had been made on fixing this issue. I just -Syu'ed an now my monitor doesn't go into powersave either after the idle timeout. Also, if I make a change to power management settings in the Xscreensaver config tool it doesn't seem to save them as the options are disabled next time I look at the config tool.

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