To set up an additional monitor, connect the monitor to your computer. If
your system does not recognize it immediately, or you would like to adjust
the settings:
-
Open the Activities overview and
start typing Displays.
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Click Displays to open the panel.
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In the display arrangement diagram, drag your displays to the relative
positions you want.
The numbers on the diagram are shown at the top-left of each
display when the Displays panel is active.
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Click Primary Display to choose your primary display.
The primary display is the one with the
top bar, and where the
Activities overview is shown.
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Select the orientation, resolution or scale, and refresh rate.
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Click Apply. The new settings will be applied for 20
seconds before reverting back. That way, if you cannot see anything with
the new settings, your old settings will be automatically restored. If
you are happy with the new settings, click Keep Changes.