Dock/DisplayLink crashes repeatedly, Dell D6000, Ubuntu 20.04

[serf]

Originally Posted by Brewhaus

An additional issue I am having, though I'm not sure if it's a DisplayLink or Ubuntu issue is that along the right edge of my left most monitor there is about a half inch section that flickers the mouse pointer between the right edge of the left most monitor and the right edge of my middle monitor (both monitors that are connected through my DisplayLink dock). ....

I had a similar problem. My workaround was to connect the middle monitor directly to the Dell 5500 with HDMI.