Public bug reported:
Bug Report: Fingerprint Enrollment Issues on Ubuntu 24.10
1. Ubuntu Version
Ubuntu 24.10
2. Package Version
`fprintd` 1.94.4-1
3. Expected Behavior
Fingerprint enrollment should work seamlessly, allowing me to use fingerprint
authentication for login without any issues.
4. Actual Behavior
- During fingerprint enrollment, the process fails almost immediately.
- Sometimes, the error appears before I touch the fingerprint scanner.
- The error message displayed is: "Fingerprint device disconnected."
- After closing the fingerprint enrollment window by clicking "Cancel," another
error appears:
- "Failed to claim fingerprint device ElanTech fingerprint sensor: the device
is already claimed by another process."
5. Troubleshooting Attempts
1. Identifying the Claiming Process
- Ran the following command to check if any process is using the fingerprint
device:
lsof /dev/bus/usb/* | grep fprint
- This returned no results.
2. Researching Online
- Found similar reports on other distributions (e.g., Fedora).
- Followed the guide
https://safereddit.com/r/Fedora/comments/12dv9ce/i_finally_got_my_fingerprint_working_on_fedora_so/?rdt=64246),
but encountered issues:
- The file `polkit-1` was missing from `/etc/pam.d/`.
3. Manual Enrollment
- Attempted to enroll a fingerprint via the terminal.
- Multiple attempts resulted in the same error messages before one
enrollment succeeded.
- However, the fingerprint was not recognized at the login screen.
4. Testing in the Settings App
- After enrolling the fingerprint via the terminal, the Settings app
displayed it as enrolled but allowed for "re-enrollment."
- Re-enrollment from the app reproduced the "Fingerprint device
disconnected" error and deleted the enrolled fingerprint, disabling fingerprint
login.
5. Restarting the Service
- Restarted `fprintd` using:
sudo systemctl restart fprintd
- This had no noticeable effect.
6. Additional Information
- The fingerprint scanner is an ElanTech fingerprint sensor with an ID of
04f3:0c6e.
- The issue appears to affect multiple distributions (e.g., Fedora), suggesting
a broader problem with the `fprintd` package or its interaction with certain
hardware.
ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: fprintd 1.94.4-1
ProcVersionSignature: Ubuntu 6.11.0-9.9-generic 6.11.0
Uname: Linux 6.11.0-9-generic x86_64
ApportVersion: 2.30.0-0ubuntu4
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Dec 9 11:59:29 2024
InstallationDate: Installed on 2024-12-07 (2 days ago)
InstallationMedia: Ubuntu 24.10 "Oracular Oriole" - Release amd64 (20241009.4)
SourcePackage: fprintd
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: fprintd (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oracular wayland-session
** Attachment added: "the fp enrollment window"
https://bugs.launchpad.net/bugs/2091281/+attachment/5843043/+files/image.png
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2091281
Title:
fingerprint login fails to enroll my fingerprint
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/fprintd/+bug/2091281/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
