Windows 10: Weird random monitor blackout

I dont even know how it happened, it just does that once every 2 weeks or so minimum timeit didnt get to the No Signal part, nor the logo part, it just kind of blacked out for 2 seconds then get back upi checked the cables and even jiggled it around, it didnt disconnect the monitorit isnt really that bad, it just throw me off guard everytime im trying to do something

:)

 

Blackout while installing windows ?

Just clean install my computer yesterday and right in the Finishing Up step after Installing features and updates step done, there is blackout and my computer turn off right in the Finishing up step and back on after 2 minutes and windows continue the installation as usual without problem, until windows successfully installed on my computer. I've been using my computer for couple of hours and nothing problem, everything just fine. But i am worried about the blackout during the installation can cause damage which will happen later because maybe some file not yet installed because blackout.

 

Blackout screen.

My HP Envy TS 15 Notebook, Windows 10 will blackout on a frequent random basis. It lasts for ~30 seconds. Hit space or entry key and will return to previous screen??

 

Laptop with a couple different multiple monitor configurations - blackouts

I have a work laptop that I have to use at home and at work. At home I have a docking station with 2 external monitors using the Display ports on the dock. At work I use the laptop monitor with 1 external monitor plugged into the laptop's HDMI port.

After using the work configuration, when I get home and plug the laptop into the docking station, it reconfigures automatically as expected. However, every so often the screens go black for a few seconds, then come back on. It starts out happening every few seconds then stretches out to longer intervals between blackouts.

What is wrong and how do I stop the blackouts?

Thanks,