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Lenovo NotebooksLenovo B and G Series Notebooks Knowledge Base

B570 Sleep or screensaver will not activate - system will not go to sleep

Question

I just purchased a B570 laptop and found that the screen saver does not activate and the machine does not go to sleep even after the time requirements have elapsed.  I have reset the Power Options in Control Panel and restarted.  Any ideas? 

Answer

 

1) Try to manually force the system to sleep.  Start -> Shutdown menu -> Sleep.

 

2) Check for bluetooth or other wireless input devices (mouse with USB dongle that may be providing activity signals to the system and preventing the sleep timers from functioning normal and triggering sleep based on no activity.

 

bluetooth mouse.gif

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