I have a client that is using a Dell Wireless Keyboard and Mouse (KB&M), that was purchased as a part of a Dell Inspiron 530 system when originally purchased. The combo KB&M set has worked perfectly up until a few days ago when the keyboard and mouse suddenly started refusing to "wake up" the system from the SCREENSAVER (not sleep mode). I assume that the KB&M are timing out and/or being to told to be shut off and are some how failing to reactivate properly when user interacts with them. Or, the Bluetooth Receiver is somehow going to "sleep" and not responding when the KB&M are reactivated.
The desktop is still running when this problem occurs, Bluetooth interface still shows active (blue light is lit), and if you plug a USB keyboard in to the desktop, the system will respond to the the new HID and wake up as it should. When I check Bluetooth settings under Control Panel, it never shows any hardware in the hardware list either before or after failure.
I have also checked under Device Manager, but can't seem to find a listing for a Bluetooth receiver.
I have reset the Power Options so that nothing goes to sleep or is turned off in the the background. Yet the problem remains an issue.
Dell Wireless Keyboard (Y-RAQ-DEL2) and Mouse (M-RBB-DEL4)
Dell Inspiron 530: Service Tag 451215J1