Hello, my name is Jan and I'm happy to help you today. I'm sorry you're having this problem with your monitors. There are many possible reasons why the screen turns black. This could be due to drivers, cables, or docking stations. Please try the following suggestions.
- Power cycle/reset your computer.
Press the power button for 10 seconds to turn off
then unplug your AC adapter for 30 seconds
then plug in your adapter.
then start your device.
- Press Windows Key + X
select Device Manager.
Expand the Display Adapter
select the graphics driver
Try to disable and re-enable the driver
- Reinstall the graphics driver. Download the latest driver from the manufacturer's site and install it. Also, try the old driver if the latest driver does not work.
If you have Nvidia or AMD graphics, select the custom install and
Perform a clean install option.
- Ensure the monitor resolution and refresh rates match the monitor's native resolution /refresh rates.
- Reinstall and update the docking station drivers. Download the drivers directly from the Manufacturer's support website. Restart your computer.
- Try replacing the secondary monitor's display/HDMI cables.
- Try removing other external devices connected to the docking station.