It is great that Plasma immediately recognizes the fact that it has a dual screen.We see this choice when you boot up. Check out the video or this bmp that shows the options. There is a variety of choices for your system. You can invoke this window by pressing Super +...
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20 What to do if the screen resolution is not optimal
Sometimes you need to manually intervene to change the resolution in Awesome. He did recognize my screen resoltution on virtual box but NOT on bar metal aka my ssd. There is an easy way to set the right resolution with arandr. Check the screenlayout folder and...
11 – Setting your dual screen in Xfce
Go to the Xfce settings and look for the display icon. There you can set that you do not want to mirror your displays and that is all you need to do. You can use this also on openbox but not on i3.