Comment 5 for bug 348650

I have been trying to find out which package or packages might be at the root of the cause.
There is potentially hal (e.g. file /usr/share/hal/fdi/information/10freedesktop/30-keymap-module-thinkpad-acpi.fdi which sets up hotkeys to configure the volume), and gnome-applets.
Possibly this could be the integration of gnome-applets with hal which is buggy on Thinkpad laptops...

I was trying to get debug info from hal, but the man pahe of hald talks about a hal-debuginfo package which is not in the Ubuntu's repositories...