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"No protocol specified" error occurs when I run USB Capture Utility on Ubuntu 17.10

Article ID: 302050044 USB Capture Gen 2 Family , USB Capture Plus Family , USB Capture Utility V3

QXcbConnection: Could not connect to display :0

In the terminal of Ubuntu 17.10, the following error messages are listed after running sudo usbcaptureutility:

No protocol specified

QXcbConnection: Could not connect to display :0

Aborted

You need to switch to Ubuntu on Xorg to solve the "No protocol specified" error.

Switch to Ubuntu on Xorg login

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