Universal Serial Bus (Usb) Specific Problems - Dell UltraSharp UP3221Q User Manual

Universal Serial Bus (USB) Specific Problems

Specific
Symptoms
USB interface
is not working
Thunderbolt™
3 port does not
supply power
No video 
when using
Thunderbolt™
3 connection
after DC On/
Off, wake up
from Sleep
│
94 Troubleshooting
What You
Experience
USB • Unplug/plug Thunderbolt™ 3 Active cable.
peripherals
• Check that your monitor is turned On.
are not
• Reconnect the Thunderbolt™ 3 Active cable
working
• Reconnect the USB peripherals (downstream
• Switch Off and then turn On the monitor
• Reboot the computer.
• Some USB devices like external portable HDD
USB • Check that the connected device is compliant
peripherals
can not be
charged
• Check that you use the Thunderbolt™ 3
No picture is • Unplug/plug Thunderbolt™ 3 Active cable.
showing
• Check that the connected device is compliant
• Check that the Thunderbolt™ 3 Active cable
• Use the Thunderbolt™ 3 Active cable that
• In Windows, click on the Thunderbolt™ logo
Possible Solutions
to your computer.
connector).
again.
require higher electric current; connect the
device directly to the computer system.
with the Thunderbolt™ 3 specification. The
Thunderbolt™ 3 port supports USB 3.2 with
speeds up to 10 Gbps and an output of 90 W.
Active cable shipped with your monitor.
with Thunderbolt™ 3 specification.
connected from the computer to the USB-C
upstream port on the monitor.
was shipped with the monitor.
in Windows system tray (located at bottom
right corner of the screen). Under Approve
Thunderbolt Devices, select "Always
Connect" for this monitor.