Hello.
I have a user that would to have his mouse/keyboard wake his docked laptop from sleep. Unfortunately, there is no option to enable this is Power Options, and in Device Manager the option is greyed out for all items in the USB category, as below:
I have checked the BIOS and made sure the option is enabled. I was thinking maybe there was a group policy setting prohibiting this setting, but I don't know of any.
The user is running Windows 7 x64 (the picture shown is Windows 8, obviously, but the situation is the same for the user). Any ideas as to what might be causing this?