Bug#613274: gnome-power-manager: brightness applet slider does not react, middle, mouse button works

[Erik Meitner]

Note what appears to be a duplicate:   Debian bug #606650.
Note the upstream bug:  https://bugzilla.gnome.org/show_bug.cgi?id=611890

My system also has this behavior. It was installed only a few days ago.

Debian Squeeze on an HP Elitebook 8540w.
Kernel 2.6.32-5-amd64.

gnome-power-manager   2.32.0-2

Gpm dependencies:
consolekit   0.4.1-4
dbus-x11   1.2.24-4
gconf2   2.28.1-6
libbonobo2-0   2.24.3-1
libc6   2.11.2-10
libcairo2   1.8.10-6
libcanberra-gtk0   0.24-1
libcanberra0   0.24-1
libdbus-1-3   1.2.24-4
libdbus-glib-1-2   0.88-2.1
libgconf2-4   2.28.1-6
libglib2.0-0   2.24.2-1
libgnome-keyring0   2.30.1-1
libgtk2.0-0   2.20.1-2
libnotify1   0.5.0-2
libnotify1-gtk2.10 <none>
libpanel-applet2-0   2.30.2-2
libpango1.0-0   1.28.3-1+squeeze1
libunique-1.0-0   1.1.6-1.1
libupower-glib1   0.9.5-5
libx11-6   2:1.3.3-4
libxext6   2:1.1.2-1
libxrandr2   2:1.3.0-3
notification-daemon   0.5.0-2
upower   0.9.5-5