Dell U2724DE - Product Specific Problems

94 | Troubleshooting
Product specific problems
Problem What you
experience
Possible solutions
Screen image is
too small
Image is
centered on
screen, but
does not fill
entire viewing
area
•Check the Aspect Ratio setting in the Display
menu OSD.
•Reset the monitor to factory settings.
Cannot adjust
the monitor
with the
buttons on the
front panel
OSD does not
appear on the
screen
•Turn o the monitor, unplug the monitor power
cable, plug it back, and then turn on the monitor.
•Check whether the OSD menu is locked. If yes,
move and hold the joystick forward/back/left/
right for 4 seconds to unlock.
No input signal
when user
controls are
pressed
No picture, the
LED light is
white
•Check the signal source. Ensure that 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 dierent video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
•Run the built-in diagnostics.
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 certied to. Download and
install the latest graphics card driver.
•Some DP 1.1a graphics card cannot support DP
1.4 monitors.
No image
when using
Thunderbolt
TM
4 connection
to computer,
laptop, and so
on
Black screen •Verify if the Thunderbolt
TM
4 interface of the
device can support DP alternate mode.
•Verify if the device required more than 90 W
power charging.
•Thunderbolt
TM
4 interface of device cannot
support DP alternate mode.
•Set Windows to Projection mode.
•Ensure that the Thunderbolt
TM
4 cable is not
damaged.