Comment 33 for bug 222796

hotkey-setup (0.1-23ubuntu6) in intrepid fixes the problem of no OSD for the volume keys on Lenovo X60s. The former working (without OSD) mute key actually locks the screen now. This effect is new - never observed that before.

Results on Intrepid Beta on Lenovo X60s:
Lock Screen: Works and generates ACPI event
Sleep: Works and generates ACPI event
Switch displays: generates ACPI event (no external monitor for testing)
Hibernate: Works and generates ACPI event (laptop does hibernate properly)
Brightness up: Works with OSD and 3 ACPI events:
 ibm/hotkey HKEY 00000080 00001010
 video LCD0 00000086 00000000
 ibm/hotkey HKEY 00000080 00005010
Brightness down: Works with OSD and ACPI event
Volume up: Works with OSD, ACPI event, and software mixer adjusts
Volume down: Works with OSD, ACPI event, and software mixer adjusts, player stops!
Mute: Works with OSD, ACPI event, software mixer does not adjust, screen locks!
Keyboard light: Works but no ACPI event

Thinkpad Key generates ACPI event - no function, not mappable in Gnome Keyboard
MediaPlayer Keys (backward, stop, forward) work with banshee! (no ACPI events)