Dell UltraSharp 38" 1600p Curved Monitor - Manual (Page 79)

Operating the monitor
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When you switch the USB Switch from PC 1 to PC 2, and Ethernet Switch Mode
is set to Prompt when KVM switches , the following message appears:
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 set to
Prompt for Multiple Inputs , the following message appears:
When the monitor goes into Standby mode, the following message appears:
Activate the computer and wake up the monitor to gain access to the OSD .