Dell C3422WE Podręcznik - Strona 17
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Product specific problems
Problem
What you
experience
Screen image is
Image is
too small
centered on
screen, but does
not fill entire
viewing area
Cannot adjust
OSD does not
the monitor
appear on the
with the
screen
buttons on the
front panel
No Input Signal
No picture, the
when user
LED light is white
controls are
pressed
The picture
The picture
does not fill the
cannot fill the
entire screen
height or width
of the screen
No image
Blank screen
when using DP
connection to
the PC
No image
Blank screen
when using
USB Type-C
connection
to computer,
laptop, and so
on
5. Trouble Shooting Instructions
Possible solutions
• Check the Aspect Ratio setting in the Display
menu OSD.
• Reset the monitor to factory settings.
• Turn off the monitor, unplug the monitor
power cable, plug it back, and then turn on the
monitor.
• 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.
• Due to different video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
• Run the built-in diagnostics.
• Verify which DP standard (C2422HE/
C3422WE:DP 1.1a or DP 1.2)(C2722DE: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
1.2(C2422HE/C3422WE),DP1.4(C2722DE)
monitors. Go to OSD menu, under Input Source
selection, press and hold DP select joystick key
for 8 seconds to change the monitor setting
from DP 1.2 to DP 1.1a, DP 1.4 to DP 1.1a
• Verify if the USB Type-C interface of the device
can support DP alternate mode.
• Verify if the device required more than 90 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.