Mandatory idle_delay is not honored in Karmic

Binary package hint: gnome-screensaver

gnome-screensaver 2.28.0-0ubuntu1

Setting idle_delay as mandatory via gconf as no effect. Works in Jaunty, but not in recent Karmic release.

cat /etc/gconf/gconf.xml.mandatory/%gconf-tree.xml

<?xml version="1.0"?>
<gconf>
 <dir name="apps">
  <dir name="gnome-screensaver">
   <entry name="mode" mtime="1255489230" type="string">
    <stringvalue>blank-only</stringvalue>
   </entry>
   <entry name="lock_enabled" mtime="1255489223" type="bool" value="true"/>
   <entry name="idle_delay" mtime="1255489192" type="int" value="15"/>
   <entry name="idle_activation_enabled" mtime="1255489178" type="bool" value="true"/>
  </dir>
 </dir>
</gconf>

Users are still able to adjust the idle time; the slider is not disabled.

ProblemType: Bug
Architecture: i386
Date: Tue Oct 13 22:22:32 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu-Netbook-Remix 9.10 "Karmic Koala" - Alpha i386 (20091009)
NonfreeKernelModules: wl
Package: gnome-screensaver 2.28.0-0ubuntu1
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.46-generic
SourcePackage: gnome-screensaver
Tags: ubuntu-unr
Uname: Linux 2.6.31-14-generic i686