I have an L70-B119 Satellite upgraded to Windows 10. Just recently the laptop has been going in to sleep mode after approx. 1-2 minutes of no activity for no reason ! I have now changed the settings to over 2 hours but when returning from sleep by hitting a key or moving the mouse all starts up except the display screen which stays black. I then have to hold the power button down to switch of and re-boot from fresh.

Any ideas or help to solve this would be much appreciated !

Thanks, Rob