[SOLVED] Second screen does not work

[kristianonline28]

I have installed BackBox on my laptop an wanted to connect the laptop with a second screen, which has the size 1920 x 1080. But when I choose this size, I cannot really see anything on the screen, because it flickers.

But on the screen on my laptop, everything works find.

How to solve this problem?

[ZEROF]

Hi,

Google is your best friend in situation like this, search for "How To Setup Dual Monitor". Just add your laptop model. With provided info we can't help you more.

[kristianonline28]

What information do you need to help me?

The resolution of the laptop is 1280x800, on my second screen 1920x1080. I want that the output is only on my second (bigger) screen.

I tried to set it up with arandr, but that does not help.

Edit: On the laptop, there was Windows Vista erlier. With Windows Vista, it worked without any problems.

Edit 2: The maximum resolution, where the screen of the laptop is black and the bigger screen is working properly, is 1280x720. Are there any other settings I can change, so I can get a bigger resolution for my second screen  ??? ??? ???

[ZEROF]

Like I said, there is no way we can do your job:

https://miguelmenendez.pro/en/articles/use-multiple-monitors-screens-xfce-extended-display-desktop-mirror.html

And that was found after 30sec of googling. Many others shared their solutions as well.