Dell U2422HE Users Guide - Page 92

USB-C, Prioritization, High Data, Speed, Unplug the HDMI/DisplayPort cable

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Page 92 highlights

No video at HDMI When connected to • Unplug the HDMI/DisplayPort cable /DisplayPort some dongle/ from dongle/docking device, then port docking device at plug the docking Thunderbolt cable the port, there is no to the notebook. Plug the HDMI/ video when DisplayPort cable 7 seconds later. unplugging/plugging the Thunderbolt cable from the notebook No video at USB-C When connected to • Unplug the USB-C cable from port (U2422HE some dongle/ onl y) docking device at the port, there is no dongle/docking device, then plug the docking Thunderbolt cable to the notebook. Plug the USB-C cable 7 video when seconds later. unplugging/plugging the Thunderbolt cable from the notebook No network connection (U2422HE only) Network dropped or • Check to ensure USB-C intermittent Prioritization is set to High Data Speed. • Do not turn Off the display during network connection. 92 │ Troubleshooting

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92± ±
│
± ± Troubleshooting
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.
No video at USB-C
port
(U2422HE
only)
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 USB-C cable from
dongle/docking device, then plug the
docking Thunderbolt cable to the
notebook. Plug the USB-C cable 7
seconds later.
No network
connection
(U2422HE only)
Network dropped or
intermittent
•
Check to ensure
USB-C
Prioritization
is set to
High Data
Speed
.
•
Do not turn Off the display during
network connection.