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Old 04-13-2021, 09:33 PM   #1
MT223
Junior Member
 
Join Date: Apr 2021
Posts: 3
Default DisplayLink 5.4 and Linux Kernel 5.11 not working

Greetings, I'm new to the forum and am currently experiencing an issue. I'm a novice linux user and installed linux on my primary laptop to force myself to learn. :-) Any and all assistance is greatly appreciated.

Background on my environment:
- Plugable UD-3900
- DisplayLink Link 5.4 installed
- Linux: Pop_OS! 20.04 (Based upon Ubuntu 20.04) & latest updates
- Linux Kernel: 5.11.0-7612-generic
- Xorg Version: xorg-server 2:1.20.9-2ubuntu1.2~20.04.2

When I was on Linux Kernel 5.8, my dual displays presented from my Plugable universal docking station worked and allowed me to extend the desktop from the primary display on my laptop. I was hoping to not have to boot into a downgraded linux kernel! :-)

However, since upgrading the kernerl to 5.11, the displays aren't working fom my docking station. If I connect the HDMI cable from one of the displays directly to the HDMI port on my laptop, the functionality works as expected. Is there some tool or configuration that I can use to help resolve this? According to the latest release, DisplayLink 5.4 is supposed to work on the 5.11 kernel. The Plugable website points me to use the displaylink drivers posted on the displaylink or synaptics website.

This is the behavior that is exhibited when connected to the docking station:
- When I run "lsusb -d 17e9:", it sees the device as "Bus 002 Device 003: ID 17e9:4323 DisplayLink USB3.0 Hub"
- When I go to settings -> displays, I can see the display from the drop down (deactivated). When I go to activate, it shows up temporarily. When I select apply and keep changes, it goes back to deactivated.

Last edited by MT223; 04-14-2021 at 11:19 PM. Reason: Providing clarity and details
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