Dell C2723H Monitor Users Guide - Page 87

notebook. Plug the HDMI/DisplayPort, Unplug the HDMI/DisplayPort cable

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No Input Signal No picture, the LED when user controls light is white are pressed • Check the signal source. Ensure the computer is not in the standby 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. The picture does not fill the entire screen The picture cannot • Due to different video formats fill the height or (aspect ratio) of DVDs, the monitor width of the screen may display in full screen. • Run the built-in diagnostics. No video at HDMI/ When connected to Unplug the HDMI/DisplayPort cable DisplayPort port some dongle/ from dongle/docking device, then plug docking device at the docking Thunderbolt cable to the the port, there is no notebook. Plug the HDMI/DisplayPort video when cable 7 seconds later. unplugging/plugging the Thunderbolt cable from the notebook Monitor buttons Monitor buttons Use Microsoft Teams® App to perform (Speaker mute/ (Speaker mute/ the below tasks: Volume down/ Volume down/ Volume up/ Volume up/ Microphone mute) Microphone mute) not working with not working on • Call Icon to accept / hang up call • Volume down / Volume up adjustment Microsoft Teams® Microsoft Teams® • Mic mute / unmute App App with Chrome OS • Camera on / off / Ubuntu Video recording not working Video recording App • Windows 7 not supported not working with Win • Switch to Windows 10 7 Troubleshooting │ 87

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Troubleshooting± ±
│
± ± 87
No Input Signal
when user controls
are pressed
No picture, the LED
light is white
•
Check the signal source. Ensure the
computer is not in the standby 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.
The picture does
not fill the entire
screen
The picture cannot
fill the height or
width of the screen
•
Due to different video formats
(aspect ratio) of DVDs, the monitor
may display in full screen.
•
Run the built-in diagnostics.
No video at HDMI/
DisplayPort port
When connected to
some dongle/
docking device at
the port, there is no
video when
unplugging/plugging
the Thunderbolt
cable from the
notebook
Unplug the HDMI/DisplayPort cable
from dongle/docking device, then plug
the docking Thunderbolt cable to the
notebook. Plug the HDMI/DisplayPort
cable 7 seconds later.
Monitor buttons
(Speaker mute/
Volume down/
Volume up/
Microphone mute)
not working with
Microsoft Teams
®
App
Monitor buttons
(Speaker mute/
Volume down/
Volume up/
Microphone mute)
not working on
Microsoft Teams
®
App with Chrome OS
/ Ubuntu
Use Microsoft Teams
®
App to perform
the below tasks:
•
Call Icon to accept / hang up call
•
Volume down / Volume up
adjustment
•
Mic mute / unmute
•
Camera on / off
Video recording
not working
Video recording App
not working with Win
7
•
Windows 7 not supported
•
Switch to Windows 10