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Dell U2421HE Service Manual page 13

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Setting USB-C Prioritization when USB-C Charging is
set to On During Power Off
If
USB-C Charging
is set to On During Power Off, the monitor allows you to specify the
USB-C Prioritization settings only when your PC is powered off.
1 Ensure that your PC is powered off.
2 Press any control button other than the power button to display the shortcut menu
of Input Source.
3 Use the
or
4 Press and hold the
5 The USB-C Prioritization configuration message will appear.
6 Use the
or
7 The setting will be effective after you turn on the PC.
5. Trouble Shooting Instructions
button to highlight USB Type-C.
Dell UltraSharp 27 Monitor
Input Source:
Auto
USB Type-C
DP
HDMI
button for approximately 8 seconds.
Dell UltraSharp 27 Monitor
Select USB-C Prioritization:
High Resolution
button to specify the preferred transfer priority.
High Data Speed
U2721DE

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