Dell P2223HC 21.5" 16:9 IPS Monitor - Manual (Page 65)

Operating the monitor
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When the monitor is under DP/HDMI input and a USB Type-C cable is connected to
a notebook that supports DP Alternate Mode, if
Auto Select for USB-C is enabled,
the following message appears:
You will see the following message before the Lock function is activated:
NOTE: The message may be slightly different according to the selected
settings.
When Factory Reset is selected, the following message appears: