The reason I ask is that, while suspend under lid closure and fn-F4 work perfectly in the Ubuntu (gnome) desktop, I cannot get them to work when using a different window manager (fvwm) on my thinkpad X201. I thought this was taken care of by gnome-power-manager, but when running gnome-power-manager within fvwm, I get no suspend from lid closure or fn-F4. I tried starting other processes as well, like gnome-settings-daemon, but this had no effect. I also tried fiddling with acpi settings, without sucess.