When you have two monitors, and the screen saver comes on, in some cases the laptop screen might not come back after you *wake-up* your computer. This is a known issue with our Lenovo laptops.
The fix is to change the power saving settings so that the monitor *never* goes into sleep mode when connected to power.
- Right-click on an empty area of your laptop and select Properties
- Select the Screen Saver tab Click on the Power button
- Under the Plugged in column, select Never in the Turn off monitor row
- Click OK and Ok again to complete the change
Alternatively, when this happens, briefly press the power button on the laptop to wake up the screen.