Dragonplayer should inhibit screensaver when playing a movie

[tuxo]

Description: Kubuntu 9.04
Release: 9.04

dragonplayer:
  Installed: 4:4.2.4-0ubuntu1~jaunty1~ppa2
  Candidate: 4:4.2.4-0ubuntu1~jaunty1~ppa2
  Version table:
 *** 4:4.2.4-0ubuntu1~jaunty1~ppa2 0
        500 http://ppa.launchpad.net jaunty/main Packages
        100 /var/lib/dpkg/status
     4:4.2.2-0ubuntu2 0
        500 http://ch.archive.ubuntu.com jaunty/main Packages

What I expected to happen
When playing a movie with dragonplayer, I expected the screensaver not to kick in after some time and ask me for a password. However, when not watching a movie, I would like the screensaver to start after some time and locking the desktop (that's how I configured it in the screensaver configuration window).

What happened instead
While watching the movie, the screensaver started up and locked the screen.

Related bugs:
Bug #312583:
[Kubuntu 8.10][KDE4.2.BETA2] Display locks automatic, when watching a movie ect

-> This bug is about the same subject, however, it has been marked as a duplicate of bug #321165 (Dragonplayer should inhibit suspension when playing a movie) that was marked with a "fix released". Reason given: "This bug was fixed in the package kdemultimedia - 4:4.2.1-0ubuntu1"

However, As of KDE 4.2.4 (installed via the ppa repositories) this is still an issue for me.

Bug #378510:
While playng a video dragon lets the system go in stand by mode

-> Related but this bug is not about the screensaver starting up but about the computer going into standby mode while watching a movie.

[Elsevier (kofferpc)]

I can confirm this problem.

Dragonplayer still allows screensafer as in KDE 4.6.3 Kubuntu 11.04_64.

Regards