Problem with Kubuntu 16.04
 

There was a few problems with Kubuntu 16.04 LTS :
1) After install the DisplayLink driver (I used the latest driver 1.1.62 для HP DL 3005pr the use device) - the mouse pointer hovers constantly on the screen. (Ie, it is now possible to draw )
2) Redrawing the screen comes with a large deceleration.

3) After the system is rebooted third monitor does not turn on automatically, it is necessary to connect it manually.

Under Windows, this problem is absent.

The mere fact that you are able to capture it on a screenshot is a proof that what you see is what was drawn on framebuffers by the system, and therefore was transmitted to DisplayLink devices and displayed on the screen. Change your compositor to something else (e.g. Xrender) and see if this helps.

Cheers,
Michal

Yes, XRender - helped, the problem with the mouse solved. However, the second problem has not been solved: after reboot - third monitor (DP Port) not start automaticaly.