Ensure that nothing overwrites the settings, e.g. xscreensaver,
xfce4-power-manager or anything else. I set up
Section "ServerFlags"
Option "BlankTime" "0"
Option "StandbyTime" "0"
Option "SuspendTime" "0"
Option "OffTime" "0"
EndSection
by xorg.conf and then use xscreensaver-command or
xfce4-power-manager-settings or xset dpms force && xset to set up the
wanted values, when the CRT-Monitor should go to sleep.
For my openbox Arch Linux I use xfce4-power-manager.
[rocketmouse@archlinux ~]$ xset q | grep -A2 "Screen Saver:"
Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 540 cycle: 0
[rocketmouse@archlinux ~]$ xset q | grep -A3 "DPMS (Energy Star):"
DPMS (Energy Star):
Standby: 600 Suspend: 0 Off: 3000
DPMS is Enabled
Monitor is On
The monitor is turned off after a while. However, I have different
Linux installs and IMO xfce4-power-manager isn't the best choice.
However, I have no issues with using different xfce4-power-manager or
xscreensaver profiles, but I'm lazy, so my momentarily scripts aren't a
pleasure to read.
Maybe this does help:
[rocketmouse@archlinux ~]$
cat .config/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml
<?xml version="1.0" encoding="UTF-8"?>
<channel name="xfce4-power-manager" version="1.0">
<property name="xfce4-power-manager" type="empty">
<property name="dpms-on-ac-sleep" type="uint" value="10"/>
<property name="dpms-on-ac-off" type="uint" value="50"/>
<property name="show-tray-icon" type="int" value="0"/>
<property name="blank-on-ac" type="int" value="9"/>
<property name="presentation-mode" type="bool" value="false"/>
<property name="general-notification" type="bool" value="false"/>
</property>
</channel>
