Product-Specific Problems - Dell P2720DCc User Manual

Product-specific problems

Specific
Symptoms
Screen image is too
small
Cannot adjust the
monitor with the
buttons on the
bottom of the panel
No Input Signal
when user controls
are pressed
The picture does
not fill the entire
screen
No image when
using USB Type C
connection to PC
or Notebook.
No charging when
using USB Type C
connection to the
Notebook
USB interface is
not working
Possible Solutions
∞ Check the Aspect Ratio setting in the Display settings
OSD.
∞ Reset the monitor to Factory Settings (Factory Reset).
∞ Turn Off the monitor, unplug the power cord, plug it back,
and then turn On the monitor.
∞ Check if the OSD menu is locked. If yes, press and hold
the menu button for 4 seconds to unlock.
∞ Check the signal source. Ensure the computer is not in
standby or sleep mode by moving the mouse or pressing
any key on the keyboard.
∞ Check if the video cable is plugged in properly. Disconnect
and reconnect the video 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.
∞ Run the built-in diagnostics.
∞ Verify if the PC or Notebook USB Type C interface can
support Alternate mode DP1.2.
∞ USB Type C interface of PC or Notebook can not support
Alternate mode DP1.2.
∞ Verify if the Notebook required >65W power charging.
∞ The Notebook required >65W power charging.
∞ Check that your monitor is turned ON.
∞ Reconnect the USB-C 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.
Troubleshooting │ 69