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Old 11-09-2021, 04:31 PM   #1
leetuckert
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Join Date: Nov 2021
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Default Ubuntu 20.04 Software Update Killed Displaylink

So, being prompted this morning by Ubuntu 20.04, to do a software update, I stupidly agreed. It was of those that required a reboot. Upon reboot, my Displaylink device is completely broken. I removed the driver and reinstalled. No help. I removed the driver, downloaded the latest from Displaylink, installed it but, no help. The displaylink service shows up as dead. I can restart it and systemctl status shows that it is alive and running. However, lsusb does not show the evdi loaded. So, I am back to a single monitor. Anyone else having this problem today?
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Old 11-17-2021, 09:37 PM   #2
caitifty
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Join Date: May 2020
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Default Kernel update killed displaylink

Same problem - regular update updated kernel from 5.55.0-38 to 5.11.0-40 which stopped displaylink recognizing external monitors completely.

Only solution which worked was to force grub to load the previous kernel. Instructions for that here: https://www.systutorials.com/how-to-...-ubuntu-20-04/
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Old 11-19-2021, 09:28 PM   #3
pjones1063
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Default Ubuntu 20.04 Software Update Killed Displaylink

I have the same issue. It wont run at all with 5.11.0-40. The installer actually fail with 5.11.0-40 running. Had to reinstall it with 5.55.0-38 running. Below is error in the kernel ring buffer - dmesg when 5.11.0-40 is up:


[ 30.391112] module: x86/modules: Skipping invalid relocation target, existing value is nonzero for type 1, loc 000000004e8c48c2, val ffffffffc14c3d80
[ 30.516312] module: x86/modules: Skipping invalid relocation target, existing value is nonzero for type 1, loc 000000009acc30c1, val ffffffffc14e1d80

Hope this gets corrected soon. Its a drag use in older kernel.
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