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Troubleshooting
Product-specific problems
Table 34. Product-specific problems
Specific symptoms What you experience Possible solutions
The screen image is too
small
Image is centered on the
screen, but does not fill
the entire viewing area
• Check the Aspect Ratio setting in the Display menu OSD.
• Reset the display to factory settings.
Cannot adjust the
monitor with the
joystick control on the
rear of the monitor
OSD does not appear on
the screen
• Turn off 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
Up, Down, Left, or Right navigation keys 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.
• Ensure the signal cable is securely connected. If needed, disconnect and
reconnect the cable to confirm a proper connection.
• 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
DP connection to the
computer
Black screen
• Verify the DisplayPort (DP) certification (DP 1.1a or DP 1.4) of your
graphics card. Download and install the latest graphics card driver.
• Some DP 1.1a graphics card cannot support DP 1.4 monitors.
No image when using
USB-C connection to
computer, laptop, and
so on
Black screen
• Verify if the USB-C interface of the device can support DP alternate mode.
• Verify if the device requires more than 90 W power charging.
• USB-C interface of the device cannot support DP alternate mode.
• Set Windows to Projection mode.
• Ensure that the USB-C cable is not damaged.
No charging when using
USB-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 laptop requires a >90 W power adapter.
• If the laptop requires a >90 W power adapter, it may not charge with the
USB-C connection.
• Ensure that you use only Dell approved adapter or the adapter that comes
with the product.
• Ensure that the USB-C cable is not damaged.
Intermittent charging
when using USB-C
connection to computer,
laptop, and so on
Intermittent charging
• Check if the maximum power consumption of the device is over 90 W.
• Ensure that you use only Dell approved adapter or the adapter that comes
with the product.
• Ensure that the USB-C cable is not damaged.
No image when using
USB-C MST
(P3225DE only)
Black screen or second
DUT is not Prime mode
• USB-C input - Go to OSD menu. Under Display Info, check if the Link Rate is
HBR2 or HBR3. If the Link Rate is HBR2, suggest using USB-C to DP cable
to turn on the MST.
No display output on
P3225QE when its
connected as a 2
nd
daisy chained monitor
With an AMD graphic
card, connecting
P3225QE as a second
daisy chained monitor
at 3840 x 2160@100 Hz,
no signal output/display
is observed.
• Due to bandwidth limitation, DP is unable to support dual 4K monitors
at 100 Hz refresh rate. As such, this refresh rate is hidden on non-AMD
graphic cards. Do connect both monitors to separate DP/HDMI ports if
3840 x 2160@100 Hz is required. Alternatively, do set the refresh rate of
the 2
nd
monitor (P32225QE) to 60 Hz. (PC> Display> Advanced display >
Choose a refresh rate)
No network connection Network dropped or
intermittent
• Do not toggle Off/On the power button when network is connected, keeps
the power button On.
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