https://bugs.kde.org/show_bug.cgi?id=499893
Bug ID: 499893
Summary: No fingerprint auth option when laptop wakes from
sleep
Classification: Plasma
Product: plasmashell
Version: 6.2.5
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Screen locking
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
Created attachment 178195
--> https://bugs.kde.org/attachment.cgi?id=178195&action=edit
Updates list
SUMMARY
STEPS TO REPRODUCE
1. Put laptop to sleep
2. Wake laptop from sleep
3. Attempt to login with fingerprint
OBSERVED RESULT
No option for fingerprint login
EXPECTED RESULT
Option for fingerprint login should be shown
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 41
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.2
Kernel Version: 6.12.11-200.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
ADDITIONAL INFORMATION
I've been using fingerprint authentication for sudo and screen unlocking for a
few months. I am not using it for initial login. I've had no issues with
fingerprint authentication in all this time, until the 9/10th of February.
Fingerprint authentication still works for sudo authentication and for
unlocking the screen after I've manually locked it via Meta + L. However the
system is no longer prompting me for fingerprint authentication after it wakes
from sleep e.g. I close my laptop lid, wait a minute and then reopen the
laptop, I'm no longer prompted with the "or scan your fingerprint on the
reader" message and I have to use password auth. The same issue applies if I
use the "sleep" option in the application menu.
I see the following fprintd related messages in the journal log after waking
from sleep and seeing the missing "place your finger..." message on the lock
screen.
```
Feb 12 15:47:28 fedora-xps systemd[1]: Starting fprintd.service - Fingerprint
Authentication Daemon...
Feb 12 15:47:29 fedora-xps systemd[1]: Started fprintd.service - Fingerprint
Authentication Daemon.
Feb 12 15:47:29 fedora-xps fprintd[11244]: Authorization denied to :1.248 to
call method 'Claim' for device 'Goodix MOC Fingerprint Sensor': Device was
already claimed
Feb 12 15:48:16 fedora-xps fprintd[11244]: Authorization denied to :1.258 to
call method 'ListEnrolledFingers' for device 'Goodix MOC Fingerprint Sensor':
Not Authorized: net.reactivated.fprint.device.verify
Feb 12 15:49:19 fedora-xps systemd[1]: fprintd.service: Deactivated
successfully.
```
I've rolled back to a BTRFS snapshot from February 5th and the fingerprint
functionality works fine when waking from sleep. However if I apply updates,
the problem returns. So it seems like some update between 05/02/2025 and maybe
the 9th/10th started the issue.
I've attached a list of the updates that are applied before the issue returns.
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