Users Guide
42 | Troubleshooting
Problem What you
experience
Possible solutions
No Input Signal
when user
controls are
pressed
No picture, the
LED light is white
•Check the signal source. Ensure the computer is
not in the power saving mode by moving the mouse
or pressing any key on the keyboard.
•Check whether the signal cable is plugged in
properly. Connect the signal cable again, if
necessary.
•Reset the computer or video player.
The picture does
not fill the entire
screen
The picture
cannot fill the
height or width
of the screen
•Due to dierent video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
•Run the built-in diagnostics.
No image
when using
USB Type-C
connection
to computer,
laptop, and so on
Black screen •Verify if the USB Type-C interface of the device can
support DP alternate mode.
•Verify if the device required more than 45 W power
charging.
•USB Type-C interface of device cannot support DP
alternate mode.
•Set Windows to Projection mode.
•Ensure that the USB Type-C cable is not damaged.
No charging
when using
USB Type-C
connection
to computer,
laptop, and so on
No charging •Verify if the device can support one of 5 V/9 V/15
V/20 V charging proles.
•Verify if the device requires more than 45 W power
charging.
•Ensure that you use only Dell approved adapter or
the adapter that comes with the product.
•Ensure that the USB Type-C cable is not damaged.
Intermittent
charging
when using
USB Type-C
connection to
computer,
laptop, and so on
Intermittent
charging
•Check if the maximum power consumption of
device is over 45 W.
•Ensure that you use only Dell approved adapter or
the adapter that comes with the product.
•Ensure that the USB Type-C cable is not damaged.