closing laptop lid incorrectly throttles screensaver, even with external display

[Florian Echtler]

When I close the lid of my laptop, gnome-power-manager always throttles the screensaver (as indicated by the following output):
$ gnome-screensaver --debug --no-daemon |& grep -i throttle
[listener_add_ref_entry] gs-listener-dbus.c:716 (10:53:12): adding throttler from Power screensaver for reason 'Laptop lid is closed' on connection :1.18
[listener_check_throttle] gs-listener-dbus.c:353 (10:53:12): Checking for throttle
[list_ref_entry] gs-listener-dbus.c:279 (10:53:12): throttler: Power screensaver for reason: Laptop lid is closed
[gs_listener_set_throttle] gs-listener-dbus.c:340 (10:53:12): Changing throttle status: 1

However, this should not happen when external displays are connected, as it is the case for me.

1)
Description: Ubuntu 11.04
Release: 11.04

2)
gnome-power-manager:
  Installed: 2.32.0-2ubuntu2
  Candidate: 2.32.0-2ubuntu2
  Version table:
 *** 2.32.0-2ubuntu2 0
        500 http://de.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
        100 /var/lib/dpkg/status

3)
Screensaver should activate on external display, even when laptop lid closed.

4)
Screen is blanked only due to throttling.