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Yubikey suddenly stopped working on Ubuntu

If you are on ubuntu and/or your web browser is installed via snap and you use yubikey or any other physical 2fa device, there is a chance that the key suddenly stops working. It might not be broken as there seems to be a bug in snapd v2.62.

I went to report it but someone has already done that (

The solution is to downgrade your snapd (at least at the moment).

Check what versions you currently have installed:

$ snap --version
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If you are not currently using snapd 2.62, then you might want to stop and investigate the issue further (or downgrade nevertheless to eliminate snapd as culprit)

List available ones

$ snap list --all snapd
Name   Version  Rev    Tracking       Publisher   Notes
snapd  2.62     21465  latest/stable  canonical✓  snapd,disabled
snapd  2.61.2   21184  latest/stable  canonical✓  snapd
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Note the revision numbers, in this case we want to use 2.61.2 with revision number 21184. Yours might differ.


$ sudo snap refresh snapd --revision=21184
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You might have to (however in my case it was not necessary) relaunch the affected web browser for this change to take effect.

Hope this helps!

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