Comment 0 for bug 1070468

The slider in the "Brightness and Lock" settings panel does not respond to brightness changes by keyboard hotkeys.

Steps to reproduce:

1) Open "Brightness and Lock" from the control center
2) Change the brightness witht he keyboard hotkeys
3) See that the brightness slider does not change

I read the similar (fixed) bug #893851 and I saw the attached patch that updated the DBus interface. Now it seems the signal is not reaching the UI for some reason. If I run "dbus-monitor type=signal" and set the brightness up and down with the keyboard, the following output shows:

signal sender=:1.9 -> dest=org.gnome.SettingsDaemon serial=289 path=/org/gnome/SettingsDaemon/Power; interface=org.gnome.SettingsDaemon.Power.Screen; member=Changed
signal sender=:1.9 -> dest=org.gnome.SettingsDaemon serial=295 path=/org/gnome/SettingsDaemon/Power; interface=org.gnome.SettingsDaemon.Power.Screen; member=Changed

This seems to imply the signals are issued but does not reach the UI.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gnome-control-center 1:3.4.2-0ubuntu19
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
NonfreeKernelModules: nvidia wl
ApportVersion: 2.6.1-0ubuntu3
Architecture: i386
Date: Tue Oct 23 15:22:25 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to quantal on 2012-10-19 (4 days ago)
usr_lib_gnome-control-center:
 activity-log-manager-control-center 0.9.4-0ubuntu4
 deja-dup 24.0-0ubuntu1
 gnome-control-center-signon 0.0.18-0ubuntu1
 indicator-datetime 12.10.2-0ubuntu3