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
