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Wireless Adapter Driver with DKMS always fails on new kernel

asked 2019-04-16 06:29:47 -0500

joem86 gravatar image


I've been running my workstation with a wireless adapter RTL871X that needs an external driver (currently using this one). Once the driver is built/installed with dkms everything works well.

The problem occurs when I upgrade the kernel via normal dnf upgrade. I observe DKMS attempting to rebuild the module, but when my computer reboots it shows that the version magic is incorrect:

[ 5.562719] 8814au: version magic '5.0.6-200.fc29.x86_64 SMP mod_unload ' should be '5.0.7-200.fc29.x86_64 SMP mod_unload '

The only way to get wifi working again is to uninstall/reinstall the module using dkms. I've put this in a script on my home directory called, but obviously this is not the correct solution.

For completeness, here's my script:

#!/usr/bin/env bash

sudo dkms uninstall -m rtl8814au -v 4.3.21
sudo dkms install -m rtl8814au -v 4.3.21

This has been happening for months now, and doesn't seem to be tied to a specific Fedora version. From what I can ascertain the new module is being built with the old kernel sources. How do I fix this so my wifi works after a new kernel upgrade without this hacky workaround?

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Well, it was an accepted problem, but it is said to have been fixed and closed. Maybe it is a regression.

dkms modules not built automatically for Fedora update or upgrade

tim8723 gravatar imagetim8723 ( 2019-04-16 07:58:37 -0500 )edit

That issue seems like it's related to the RPM package. I think the symptoms are similar but it sounds like a different issue.

joem86 gravatar imagejoem86 ( 2019-04-16 08:05:50 -0500 )edit

This may be the same issue: I'll try this and report back with a self-answered question if this fixes the issue.

joem86 gravatar imagejoem86 ( 2019-04-16 12:45:38 -0500 )edit

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answered 2019-04-24 08:34:30 -0500

joem86 gravatar image

Yep, it was exactly thisproblem. I submitted a patch upstream:

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Asked: 2019-04-16 06:29:47 -0500

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Last updated: Apr 24 '19