Support Ubuntu 20.04 LTS (Focal Fossa)

[Stofe7]

I can confirm Tiberius's issue.

[specialworld83]

Good evening, the lag are very evident and even if imposed the effects of plasma with xrender are still visible. If I remove the dock everything goes back to normal. I am attaching the debug file.

In fact, on ubuntu 18.04 I had no problem with any lag.

It doesn't allow me to attach the file. I enclose it with connection via gdrive

https://drive.google.com/open?id=1wa...h_w2132Fj25snP

[Jeins]

Same here. Big lag's when using external screen only.

[shellfyred]

Confirming there is still an issue with the latest package for Ubuntu 20.04. I recently upgraded 20.04 and installed the latest DL package, displaylink-driver-5.3.1.34. Now if I close the lid, the UI lags 3-5 seconds on input (e.g. button click does nothing for 5 seconds). Opening the lid and the issue immediately goes away. Nothing from htop seems to indicate this is in anyway tied to CPU/memory load.

[Tiberius]

tonight i tried on other laptop ubuntu 20.04. same problems lags badly on external monitor (intel graphics).

[snipe122]

Confirming happening for me as well. Maybe after latest kernel upgrade? Was working fine for me before. Have to keep the lid open now

[michal.postrozny]

Interestingly the mouse movement does not lag. Just the click and keyboard. This happens even though mouse/keyboard is not connected to the dock. Dual monitor setup. Does not matter if lid is open or close.

I would be happy tho share the logs gathered with displaylink tool on priv to DisplayLink support. I'm not comfortable to share anything gathered using 'sudo' on public forum.