Monitors go black

Monitor flicker issues.

I’m using UD-ULTCDL.

They go black as if it has lost signal . Repeating between 5 to 10 minutes.

When they come back anything on the second monitor has moved to the main monitor.

Using an XPS 13 9350 running Windows 10 64bit.

Using USB-C docking station with 2 view sonic VX2252mh Monitors. One is connected HDMI the other is DVI.

Hi John,

Sorry to hear about the issues, but we’ll be happy to help!

A good place to start will be to try running the XPS in Airplane Mode to see if it helps with the behavior.

(Some Dell systems experience interference between their wi-fi card and USB-C port, which we discuss in depth in the following post:… )

Could you please give this a try and see if it helps? If not, please let us know and we’ll dig in further to determine the best next steps.


Your suggestion worked perfectly. Airplane mode worked.

Thank you.

Hi John,

Great, glad to hear it!

If you’d like to try additional some potentially permanent fixes such as Dell BIOS and driver updates, or other specific Dell settings which can impact this behavior, please contact and we’ll be glad to look at some log files and dig further.

However, many choose to stick with the Airplane Mode workaround, which should continued to work fine.