Dell D2719HGF User Manual page 26

Image retention
from a static
image left on the
monitor for a long
period of time
Screen image is
too small
No Input Signal
when user
controls are
pressed
The picture does
not fill the entire
screen
USB interface is
not working
│
26 Troubleshooting
Faint shadow
from the static
image displayed
appears on the
screen
Image is centered
on screen, but
does not fill entire
viewing area
No picture, the
LED light is blue
The picture
cannot fill the
height or width of
the screen
USB peripherals
are not working
• Use the Power Management feature
to turn off the monitor at all times
when not in use (for more information,
see Power management
• Alternatively, use a dynamically
changing screensaver.
• Check the Video Mode Adjust
setting in the Image Adjust menu
OSD.
• Reset the monitor to factory settings.
• 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. Re-plug the
signal cable if necessary.
• Reset the computer or video player.
• Due to different video formats (aspect
ratio) of DVDs, the monitor may
display in full screen.
• Check that your monitor is turned on.
• Reconnect the upstream cable to
your computer.
• Reconnect the USB peripherals
(downstream connector).
• Switch off and then turn on the
monitor again.
• Reboot the computer.
• Some USB devices like external
portable HDD require higher electric
current; connect the device directly to
the computer system.
modes).