Dell U4320Q Users Guide - Page 56

Problem, What you, experience, Possible solutions, Set Windows to Projection mode.

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Problem What you experience Possible solutions No Input Signal when user controls are pressed No picture, the • Check the signal source. Ensure the computer is LED light is white 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 The picture not fill the entire cannot fill the screen height or width of the screen • Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen. • Run the built-in diagnostics. No image Black screen when using USB Type-C connection to computer, laptop, and so on • Verify if the USB Type-C interface of the device can support DP alternate mode. • Verify if the device required more than 65 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 No charging when using USB Type-C connection to computer, laptop, and so on • Verify if the device can support one of 5 V/9 V/15 V/20 V charging profiles. • Verify if the Notebook requires a >65 W power adaptor. • If the Notebook requires a >65 W power adaptor, it may not charge with the USB Type-C connection. • 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, Intermittent charging • Check if the maximum power consumption of device is over 65 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. laptop, and so on No image when using DP connection to the PC Black screen • Verify which DP standard (DP 1.1a or DP 1.4) is your Graphics Card certified to. Download and install the latest graphics card driver. • Some DP 1.1a graphics card cannot support DP 1.4 monitors. Go to OSD menu, under Input Source selection, press and hold DP select key for 8 sec to change the monitor setting from DP 1.4 to DP 1.1a. 56 | Troubleshooting

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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 different 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 65 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 profiles.
•
Verify if the Notebook requires a >65 W power
adaptor.
•
If the Notebook requires a >65 W power adaptor, it
may not charge with the USB Type-C connection.
•
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 65 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.
No image
when using DP
connection to
the PC
Black screen
•
Verify which DP standard (DP 1.1a or DP 1.4) is your
Graphics Card certified to. Download and install the
latest graphics card driver.
•
Some DP 1.1a graphics card cannot support
DP 1.4 monitors. Go to OSD menu, under Input
Source selection, press and hold DP select
key for 8 sec to change the monitor setting from
DP 1.4 to DP 1.1a.