Sony PCG-GRX560 Manual

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The power management setting is not responding. 
Your notebook's operating system may become unstable if it is interrupted or if you attempt to make changes before the
notebook completely enters a lower power state, such as Hibernate. 
To restore the notebook to its normal operating stability: 
1.
Close all open applications. 
2.
Restart the notebook by pressing the Ctrl+Alt+Delete keys simultaneously and then selecting Restart
from the drop-down list. 
  
 If this procedure does not work, press and hold the power button for four seconds or longer to shut down the
notebook. 
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