I am running Ubuntu 9.04 and I use a Logitech MX-5000 keyboard. The mediakeys on this keyboard where setup (auto-magically) with xfree86 (XF86VolumeUp, X86VolumeDown etc.).
Now, I have changed from using my bluetooth headset to using my speakers but the mediakeys still only control the headset volume.
So, the question is: how can I configure the sound mixer that xfree86 uses for VolumeUp and VolumeDown ??