Dell UltraSharp 42.51" 4K Monitor - Manual (Page 78)

78 | Troubleshooting
Common
symptoms What you
experience Possible solutions
Intermittent
Problems Monitor
malfunctions on
& off • Ensure that the video cable connecting the
monitor to the computer is connected properly
and is secure.
• Reset the monitor to factory settings.
• Perform monitor self-test feature check to
determine if the intermittent problem occurs in
self-test mode.
Missing Color Picture missing
color • Perform monitor self-test.
• 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 • Try different Preset Modes in Color settings
OSD.
• Adjust R/G/B value under Custom Color in Color
menu OSD.
• Change the Input Color Format to RGB or
YCbCr 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 • Set the screen to turn off after a few minutes
of screen idle time. These can be adjusted in
Windows Power Options or Mac Energy Saver
setting.
• Alternatively, use a dynamically changing
screensaver.