Laptop hardware buttons for sound doesnt work when there is a drop down menu

[Manish Sinha (मनीष सिन्हा)]

I have Compaq 3018TU Laptop and it has a web browser launcher, sound mute and Volume +/- buttons.

There are mainly two problems with it.
1) The +/- buttons work fine when am working as usual and when focus is on the desktop. When I press them, a small volume increase decrease notifier shows up on the screen which can be used to control sound.
The problem happens that when I right click anywhere or have any Menu under focus like Application, Places or System. When I have them selected with mouse and press the +/- buttons, no such notification shows up and volume doesnt increase decrease.
2) This is a minor problem, but am not very much frustrated with it. In this when I press the Mute button next to +/- buttons, the notification comes up, but sound still comes from the speaker. That is Mute fails even though it shows up.

My Computer specs are
Conexant High Defintion Audio,
Intel Core Solo Processor

I am attaching snapshots of the notification which comes up. Am unable to decide what is the name of the package.

[Charles Profitt (cprofitt)]

Used Hotkeys Troubleshooting guide to add files (attached below)

Also noted difference based on hardware.

T500 is able to do volume control with 'mute' and the T42p is not. (Also a MacBook (1,1) and a Compaq Presario R4000 were not able to do volume control while menus are opened). Some laptops are running compiz+emerald and others are not.

The T500's mute button does not result in an on-screen display so this may be a hint to why it can be used with a menu open.

[Charles Profitt (cprofitt)]

This is my best guess on the package; this may involve any of the following packages:

# gnome-power-manager - handles brightness and power hotkeys. Displays a popup 'OCD' display
# gnome-settings-daemon (handles visual feedback of volume changes, display toggling)
# gnome-control-center (gnome-sound-properties, gnome-keybinding-properties)
# pm-utils
# acpi-support
# gdm
# hotkey-setup
# xserver-xorg-input-evdev
# linux kernel
# hal
# hal-info (model specific keycode to key symbol mapping)
# xkeyboard-config