Dell P2421DCc User Manual page 67

Image retention from
a static image left
on the monitor for a
long period of time
Video Ghosting or
Overshooting
∞ 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.
∞ Change the Response Time in the Display OSD to
Fast or Normal depending on your application and
usage.
Power management
Troubleshooting
modes).
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