Recently I have overcame most annoying problem with my T61 Xubuntu configuration.
This is first IBM/Lenovo hardware I've ever have to configure sounds buttons but maybe I screw up something before.
Anyway, it seams that tpb doesn't help in this case. Fortunately, I've found this blog entry. To make it simple you need to configure your XFCE keyboard shortcuts as follow:
| XF86AudioLowerVolume | amixer -q set Master 3%- unmute |
| XF86AudioRaiseVolume | amixer -q set Master 3%+ unmute |
| XF86AudioMute | amixer -q set Master toggle |
Yes, I know this is only solution for XFCE but more detailed configuraiton can be read under link specified above.
