Dell Thunderbolt UltraSharp 34 User Manual page 88

When you change the default setting of power saving features for the first time,
such as Uniformity Compensation, USB-C Charging (90W), or Other USB
Charging, the following message appears:
NOTE: If you select Yes for any one of the functions mentioned above,
the message will not appear the next time you change the settings of
these functions. When you perform a factory reset, the message will
appear again.
You will see the following message before the Lock function is activated:
NOTE: The message may be slightly different according to the selected
settings.
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88 Operating the monitor