Version:           0.2 (using KDE 3.5.5, Kubuntu (edgy) 4:3.5.5-0ubuntu3)
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.17-10-generic

I've a Kubuntu Toshiba A110 with a 1280x800 display. I did like to set poweroff time of my display at 5 minutes. After applying, it functioned properly.

Two problems were caused by this bug:
1. Next morning the X system didn't start. /etc/X11/xorg.conf was changed in such a way that my settings were incorrect. I assume that the settings were not completly accurately copied and consequently wrongly written back. I only wanted to change the poweroff time...

I replaced xorg.conf and started again.

2. Now the poweroff time was 5 hours instead of 5 minutes. I traced the file displayconfigrc (in .kde/share/config) with the following contents:

[General]
targetgamma=2.0

[Screen0]
dpmsEnabled=on
dpmsSeconds=300
height=800
reflectX=0
reflectY=0
refresh=60
rotate=0
width=1280

Obviously the dpmsSeconds are treated as minutes. I changed the dpmsSeconds to a value of 5 and indeed the display powered off after 5 minutes. Only exception is after starting a session, than it takes about 5 seconds to power of the display.

So I assume that on several places minutes and seconds are mixed up. Further I think that only setting poweroff behaviour should not change the xorg.conf file.

I'm installing two laptops, both had same problem.

Thanks for solving this.