There is a known issue, where SecureBoot prevents DisplayLink from working, when you install the official DisplayLink drivers on an Ubuntu version or Ubuntu-based Linux distribution, that is not officially supported. You can find the supported distributions on the Synaptic website: https://www.synaptics.com/products/disp ... /downloads
The problem is caused by DisplayLink drivers -actually, a kernel module- not being trusted by your computer, causing it to reject it for security reasons. This article explains how you can enroll a MOK (Machine Owner Key) for DisplayLink, so that your computer accepts it as a trusted.
Keep reading: https://www.tierone.eu/knowledge-base/d ... secureboot
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