Dell P2223HC 21.5" 16:9 IPS Monitor - Manual (Page 79)

Troubleshooting
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79
Universal Serial Bus (USB) specific problems
No video at HDMI/
DisplayPort/USB
Type-C port When connected to
some dongle/
docking device at
the port, there is no
video when
unplugging/plugging
the cable from the
notebook • Unplug the HDMI/DisplayPort/USB
Type-C cable from dongle/docking
device, then plug the docking HDMI/
DisplayPort/USB Type-C cable to the
notebook.
Common
symptoms
What you
experience
Possible solutions
USB interface is
not working USB peripherals
are not working • Check that your monitor is turned On.
• Reconnect the upstream cable to your
computer.
• Reconnect the USB peripherals
(downstream connector).
• Turn off the monitor and turn it on
again.
• Reboot the computer.
• Certain USB devices such as portable
hard drive require higher power source;
connect the drive to the computer
directly.
USB Type-C port
does not supply
power USB peripherals
can not be charged • Check that the connected device is
compliant with the USB-C
specification. The USB Type-C port
supports USB 3.2 Gen1 and an output
of 65 W.
• Check that you use the USB Type-C
cable shipped with your monitor.