Made the upgrade from Ubuntu 20.10 to 22.04. Ran into Wifi adapter issue but fixed that by upgrading the BIOS. Now only the USB hubs of my Displaylink hub works. Wondering if there’s an updated driver or some other configuration/troubleshooting steps. Any one run into this issue also?
Did you get the current driver from this site? Ubuntu Driver for Downloads Section | Synaptics
If not, please start there and note the release notes.
Yes. 5.6.1 is the version of this driver I updated to after updating to 22.04.
Anyone find a solution for this? I’ve tried connecting a display to two adapters (a Lenovo thunderbolt dock which I think uses DisplayLink), and a USB DisplayLink adapter that works on my other LinuxMint desktop. I’ve got the latest driver installed (5.8.0-33), and I’m running on a fresh install of Ubuntu (22.04.3 LTS).
I wanted to check my live logs and ran
sudo dmesg -w, and saw a TON of errors with
Loading of module with unavailable key is rejected.
I disconnected the module and reconnected it, got the errors
Warning! Unlikely big volume range... and
 FU [PCM Playback Volume]... in the screenshot.
Unplugging the adapter stopped the
unavailable key errors.
Plugging my monitor into the Lenovo dock revealed these lovely errors, so it looks like the issues are unrelated…
Anyway, if anyone thinks of anything else to do to troubleshoot, let me know! Otherwise I’ll poke around and see what I can find.
Oh, I remember; I think my issue is tied with Secure Boot and signed keys; I didn’t follow the full process detailed by Synaptic. Trying again and will report back. https://support.displaylink.com/knowledgebase/articles/1181617-how-to-use-displaylink-ubuntu-driver-with-uefi-sec