Setting screen timeout period on 14.04 clients?

[John Hupp]

On 2/6/2016 1:22 PM, David Groos wrote:
> Hi All,
> I'm trying to change the settings (on lts.conf?) such that when I'm 
> broadcasting an image/chart/presentation or whatever on student 
> screens (thanks to epoptes) the screen doesn't require a student to 
> move the mouse to keep the screen active. I searched this page: 
> http://manpages.ubuntu.com/manpages/trusty/man5/lts.conf.5.html to no 
> avail.
> Thanks,
> David G
>

I'm running Lubuntu and made a script to toggle a pseudo Presentation 
Mode.  As designed, each student would toggle the setting himself.

Note: The small package libnotify-bin must be installed to use notify-send.
Note: The Presentation Mode settings are not permanent; they expire with 
the session

#!/bin/bash
# /usr/local/share/applications/xset-mode.sh
# A script to toggle between Presentation and Normal mode and notify the 
user of the mode
STATUS_MONITOR=$(xset q | grep "DPMS is" | awk '{print $3}')

     if [ "$STATUS_MONITOR" == "Enabled" ]; then

        xset s off
        xset -dpms
        notify-send -t 5000 “The computer is now in Presentation Mode”

     else

        xset s on
        xset +dpms
        notify-send -t 5000 “The computer is now in Normal Mode”

     fi

------------------------------------------------------------------------

A desktop entry file to run the script (and appear in the Preferences menu):
/usr/local/share/applications/power-mode-toggler.desktop

[Desktop Entry]
Version=1.0

Type=Application

Name=Power Mode Toggle
Icon=xfpm-ac-adapter

Exec=bash /usr/local/share/applications/xset-mode.sh
Terminal=false

Categories=Settings
Name[en_US]=Power Mode Toggler
Comment[en_US]=Toggle between Presentation and Normal Mode

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