Go Back   DisplayLink Forum > DisplayLink Graphics Technology > Linux and Open Source

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-11-2021, 11:32 AM   #1
victore99
Junior Member
 
Join Date: Nov 2021
Posts: 2
Default poor performance @ ubuntu with ryzen

Hello,

when using (connected + active display) my displaylink dual DP adapter to my notebook, the input starts lagging and the UI laggs behind even further. This does not only affect the displays connected via displaylink, but the eDP and HDMI of the Laptop-iGPU.
Once the Displaylink-Display is disabled or the adapter unplugged, this immediately goes back to flawless operation.
When disabling two displays (L24T-2 and built-in eDP), the system locks up until it recovers due to the 20s timer running out.
This only affects my Ubuntu Install, the same setup has no problems under windows.
This happens with and without amdgpu installed (versions 21.10 and 21.30 and uninstalled)

System:
Thinkpad E485 with Ryzen 2500U, 16GB RAM
xserver-xorg-core version 2:1.20.11-1ubuntu1~20.04.2
displaylink graphics software 5.4.1
currently running x11

Displays:
Fujitsu E19-7 via Displaylink (60hz and 75hz modes)
Fujitsu L24T-2 via Displaylink (60hz)
LC-Power UWQHD100C via HDMI 1.4 (56hz)
Integrated FHD via eDP (60hz)

I hope there is a solution to this "Linux + AMD" problem.
If I can provide any more useful info, please let me know.

Greetings, victore99

Last edited by victore99; 11-11-2021 at 12:16 PM.
victore99 is offline   Reply With Quote
Old 11-15-2021, 03:16 PM   #2
victore99
Junior Member
 
Join Date: Nov 2021
Posts: 2
Default

well uhm, does nobody have any ideas? I am out of ideas..
victore99 is offline   Reply With Quote
Reply

Tags
delay, lag, ryzen, stutter, ubuntu

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 04:26 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.