Cant use second monitor

[Yochanan]

Welcome to the forum!

Please edit your post to use proper formatting.

Please post your system info as outlined here:

[HowTo] Find system information

Difficulty: ★☆☆☆☆ Rather than providing the commercial reference of a computer or piece of hardware, it is usually better to directly ask the system to describe itself. On top of saving time to everyone, this also often provides more details, including something specific to the running system. Below is a (not exhaustive) list of commands for retrieving system information. If you don’t know how to use those commands, or how to provide them to support, see: [HowTo] Use the terminal / TTY …