We often do not get enough information to be able to analyze the issue. If you think we need to know your hardware specifications to solve your issue, you have now since ArcoLinux 6.8.1 an extra icon in your Xfce settings. Quick System Info will give you the...
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hardware
11 – how to set up i3 with a dual monitor
I can only recommend you to try out i3 on a dual screen if possible. It opens up a different world. You can assign workspace 1-5 to monitor 1 and 6-10 to monitor 2. That creates a great workflow. We figure out the name and resolution with xrandr. We can use this name...