1 out of 2 external displays lagging on Ubuntu 20.04

alhae · 05-19-2020, 08:56 AM

Hello,

I am using a ThinkPad E595 with Ubuntu 20.04 as well (Ryzen 7 with Radeon RX Vega 10 Graphics) and experience the same issues. It is not only about lag but an extremely choppy and laggy image. The issue seems to be related to the Ryzen Processors and the EVDI Interface, as can be found here: https://github.com/DisplayLink/evdi/issues/164.

The link also includes a video that is an exact representation of my current experience.

I can confirm that the problem is the same when using Wayland, maybe a tiny bit better but still unusable.

I really hope this issue can be solved in the near future.

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05-19-2020, 08:56 AM	#3
alhae Junior Member Join Date: May 2020 Posts: 1	Hello, I am using a ThinkPad E595 with Ubuntu 20.04 as well (Ryzen 7 with Radeon RX Vega 10 Graphics) and experience the same issues. It is not only about lag but an extremely choppy and laggy image. The issue seems to be related to the Ryzen Processors and the EVDI Interface, as can be found here: https://github.com/DisplayLink/evdi/issues/164. The link also includes a video that is an exact representation of my current experience. I can confirm that the problem is the same when using Wayland, maybe a tiny bit better but still unusable. I really hope this issue can be solved in the near future.