Product-specific problems – Dell U2715H Monitor User Manual
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| Troubleshooting
Missing Color
Picture missing
color
∞ Perform monitor self-test feature check.
∞ Ensure that the video cable connecting the monitor
to the computer is connected properly and is
secure.
∞ Check for bent or broken pins in the video cable
connector.
Wrong Color
Picture color not
good
∞ Change the Color Setting Mode in the Color
Settings OSD to Graphics or Video depending on
the application.
∞ Try different Preset Modes in Color settings OSD.
Adjust R/G/B value in Custom Color in Color
settings OSD.
∞ Change the Input Color Format to RGB or YPbPr in
the Color settings OSD.
∞ Run the built-in diagnostics.
Image retention
from a static
image left on the
monitor for a long
period of time
Faint shadow from
the static image
displayed appears
on the screen
∞ Use the Power Management feature to turn off
the monitor at all times when not in use (for more
information, see
).
∞ Alternatively, use a dynamically changing
screensaver.
Wireless mouse
is not working or
lagging
Do not respond or
responds slowly
∞ Increase the distance between the USB 3.0
peripherals and the wireless USB receiver.
∞ Position your wireless USB receiver as close as
possible to the wireless mouse.
∞ Use a USB-extender cable to position the wireless
USB receiver as far away as possible from the USB
3.0 port.
Video Ghosting or
Overshooting
Moving image
appears to have
trailing shadow or
bright edge.
∞ Change the Response Time in the Display OSD to
Fast or Normal depending on your application and
usage.
Product-Specific Problems
Specific
Symptoms
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
settings OSD.
∞ Reset the monitor to Factory Settings(Factory
Reset) .
Cannot adjust the
monitor with the
buttons on the
side panel
OSD does not
appear on the
screen
∞ Turn Off the monitor, unplug the power cord, plug
it back, and then turn On the monitor.
∞ Check whether the OSD menu is locked. If yes,
press and hold the button above the Power button
for 10 seconds to unlock (for more information, see