Touch ID doesn't work when using DisplayLink

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Touch ID doesn't work when using DisplayLink

Hello,

I am using the M2 Macbook Air with Sonoma 14.0 (although this problem has been present since I've bought the Macbook Air with Ventura installed).

I use my Macbook with two external monitors attached via the Dell Docking Station (D3100), which uses the DisplayLink technology.

It works great, but the only problem is that when I use this setup, the Touch ID seems to get disabled. So whenever I need to purchase something via ApplyPay for instance, the prompt to touch the fingerprint sensor comes up, but when I press it with my finger, nothing happens. It does not recognise that a finger is being pressed against it.

Touch ID doesn't work on login either, if I turn the macbook on with the docking station attached.

I would appreciate any advice! Thank you.

MacBook Air, macOS 14.0

Posted on Oct 7, 2023 2:47 PM

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Answer 1

Oct 22, 2023 12:25 PM in response to Harky167

Hi @Harky167,

I have the same problem too which even Apple Genius Bar couldn't isolate because I didn't know that it was because of the DisplayLink and even a new External Magic Keyboard with Touch ID didn't help.

For me, always resetting the keyboard was helpful (Off and On again) but every time the Macbook locks/sleeps, I have to do it again.

I'm very happy to find this fix which has been working for me for a few days so far!

Basically, run this command in your terminal and then restart

/usr/bin/defaults write ~/Library/Preferences/com.apple.security.authorization.plist ignoreArd -bool TRUE

Hope it works for you as well!

Cheers!

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Answer 2

JJRASC

Community Specialist

Oct 9, 2023 8:05 AM in response to Harky167

Hello Harky167,

Welcome to the Apple Support Communities.

Start here for troubleshooting suggestions to help with Touch ID issues: If Touch ID isn't working on your Mac.

To isolate this issue on your Mac, try starting in safe mode before testing Touch ID again: Start up your Mac in safe mode.

Please reply back if the issue continues.

Cheers!

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Touch ID doesn't work when using DisplayLink

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