Public bug reported:
After installation of fprintd, pam module and related middleware, and
enrolling fingerprint, it started to work within expected pattern in
command-line interface cases - in most cases it is enough one scan,
sometimes needs second scan and rarely third or even defaulting to
password.
When it comes to login into Mate desktop environment (I use Mate on
Ubuntu standard distribution), it has significantly worse misses rate -
password typed in approximately 60-70% cases.
This is snippet from syslog (hostname changed to host)
---
Mar 3 08:04:12 host fprintd[22006]: ** Message: identify_cb: result
verify-unknown-error (-5)
Mar 3 08:04:12 host fprintd[22006]: (fprintd:22006): GLib-ERROR **:
/build/glib2.0-prJhLS/glib2.0-2.48.2/./glib/gmem.c:130: failed to allocate
18446744073709551612 bytes
Mar 3 08:04:12 host kernel: [516405.322150] traps: fprintd[22006] trap int3
ip:7ff606c03a5b sp:7ffce41c2320 error:0
Mar 3 08:04:12 host systemd[1]: fprintd.service: Main process exited,
code=dumped, status=5/TRAP
Mar 3 08:04:12 host systemd[1]: fprintd.service: Unit entered failed state.
Mar 3 08:04:12 host systemd[1]: fprintd.service: Failed with result
'core-dump'.
Mar 3 08:04:12 host dbus[911]: [system] Activating via systemd: service
name='net.reactivated.Fprint' unit='fprintd.service'
---
Also dmesg has enough error messages grep-ped out
---
[Fri Feb 24 01:19:22 2017] usb 1-8: usbfs: process 16099 (fprintd) did not
claim interface 0 before use
[Fri Feb 24 01:19:23 2017] traps: fprintd[16099] trap int3 ip:7f924366fa5b
sp:7ffd459a4e40 error:0
[Fri Feb 24 03:20:34 2017] usb 1-8: usbfs: process 19276 (fprintd) did not
claim interface 0 before use
[Fri Feb 24 03:20:38 2017] traps: fprintd[19276] trap int3 ip:7f4f63b0fa5b
sp:7ffdeebbd5a0 error:0
[Fri Feb 24 23:51:36 2017] usb 1-8: usbfs: process 18722 (fprintd) did not
claim interface 0 before use
[Fri Feb 24 23:51:37 2017] traps: fprintd[18722] trap int3 ip:7fe868393a5b
sp:7ffd23400a30 error:0
[Sat Feb 25 00:10:03 2017] usb 1-8: usbfs: process 20018 (fprintd) did not
claim interface 0 before use
[Sat Feb 25 00:10:04 2017] traps: fprintd[20018] trap int3 ip:7f1297a07a5b
sp:7ffe59935da0 error:0
[Sat Feb 25 01:56:22 2017] usb 1-8: usbfs: process 22779 (fprintd) did not
claim interface 0 before use
[Sat Feb 25 01:56:23 2017] traps: fprintd[22779] trap int3 ip:7fa95f4cca5b
sp:7ffd52b3eeb0 error:0
[Sat Feb 25 02:41:52 2017] usb 1-8: usbfs: process 24659 (fprintd) did not
claim interface 0 before use
[Sat Feb 25 02:41:53 2017] traps: fprintd[24659] trap int3 ip:7f2b030e6a5b
sp:7ffdef0357c0 error:0
[Sat Feb 25 04:58:05 2017] usb 1-8: usbfs: process 29687 (fprintd) did not
claim interface 0 before use
[Sat Feb 25 04:58:09 2017] traps: fprintd[29687] trap int3 ip:7f88181d3a5b
sp:7ffe92f32e10 error:0
[Sat Feb 25 10:03:13 2017] usb 1-8: usbfs: process 4863 (fprintd) did not claim
interface 0 before use
[Sat Feb 25 10:03:14 2017] traps: fprintd[4863] trap int3 ip:7f78778daa5b
sp:7fff440f4f00 error:0
[Sat Feb 25 10:06:39 2017] usb 1-8: usbfs: process 5588 (fprintd) did not claim
interface 0 before use
[Sat Feb 25 10:06:40 2017] traps: fprintd[5588] trap int3 ip:7f96d9173a5b
sp:7ffe0a52b550 error:0
[Sat Feb 25 17:37:24 2017] traps: fprintd[14277] trap int3 ip:7fc86c46ca5b
sp:7fff5a890910 error:0
[Sat Feb 25 17:38:44 2017] traps: fprintd[14912] trap int3 ip:7fa14a33fa5b
sp:7fff22baff20 error:0
[Sat Feb 25 18:25:25 2017] usb 1-8: usbfs: process 16069 (fprintd) did not
claim interface 0 before use
[Sat Feb 25 18:25:26 2017] traps: fprintd[16069] trap int3 ip:7f049f913a5b
sp:7ffe4e0b46e0 error:0
[Sun Feb 26 00:11:13 2017] traps: fprintd[24909] trap int3 ip:7fd91400da5b
sp:7ffdd53b7d80 error:0
[Sun Feb 26 00:20:46 2017] traps: fprintd[26005] trap int3 ip:7fc2a680aa5b
sp:7ffee019c2d0 error:0
[Sun Feb 26 10:39:20 2017] usb 1-8: usbfs: process 9160 (fprintd) did not claim
interface 0 before use
[Sun Feb 26 10:39:21 2017] traps: fprintd[9160] trap int3 ip:7fc1941cda5b
sp:7fff331362a0 error:0
[Sun Feb 26 10:40:22 2017] usb 1-8: usbfs: process 10457 (fprintd) did not
claim interface 0 before use
[Sun Feb 26 10:40:26 2017] traps: fprintd[10457] trap int3 ip:7fb799b9fa5b
sp:7ffcbfec2620 error:0
[Sun Feb 26 11:28:00 2017] usb 1-8: usbfs: process 11934 (fprintd) did not
claim interface 0 before use
[Sun Feb 26 11:28:01 2017] traps: fprintd[11934] trap int3 ip:7fcf7fce2a5b
sp:7ffe65251a90 error:0
[Sun Feb 26 12:55:48 2017] usb 1-8: usbfs: process 13959 (fprintd) did not
claim interface 0 before use
[Sun Feb 26 12:55:49 2017] traps: fprintd[13959] trap int3 ip:7f5d9538ba5b
sp:7ffce3b7aca0 error:0
[Sun Feb 26 18:56:34 2017] usb 1-8: usbfs: process 22004 (fprintd) did not
claim interface 0 before use
[Sun Feb 26 18:56:38 2017] traps: fprintd[22004] trap int3 ip:7f2eb9466a5b
sp:7ffed6e3f780 error:0
[Mon Feb 27 04:00:29 2017] usb 1-8: usbfs: process 12987 (fprintd) did not
claim interface 0 before use
[Mon Feb 27 04:00:30 2017] traps: fprintd[12987] trap int3 ip:7fb0a1eafa5b
sp:7ffd9b2325e0 error:0
[Mon Feb 27 10:56:49 2017] usb 1-8: usbfs: process 22006 (fprintd) did not
claim interface 0 before use
[Mon Feb 27 10:56:50 2017] traps: fprintd[22006] trap int3 ip:7ff606c03a5b
sp:7ffce41c2320 error:0
[Mon Feb 27 19:17:51 2017] usb 1-8: usbfs: process 31979 (fprintd) did not
claim interface 0 before use
[Mon Feb 27 19:17:52 2017] traps: fprintd[31979] trap int3 ip:7f9dcf696a5b
sp:7ffdb56e9050 error:0
---
These are basic facts about system. Hardware is Lenovo Thinkpad E560
---
$ lsb_release -rd
Description: Ubuntu 16.04.2 LTS
Release: 16.04
$ apt-cache policy fprintd
fprintd:
Installed: 0.6.0-1
Candidate: 0.6.0-1
Version table:
*** 0.6.0-1 500
500 http://fi.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: fprintd 0.6.0-1
ProcVersionSignature: Ubuntu 4.4.0-63.84-generic 4.4.44
Uname: Linux 4.4.0-63-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: MATE
Date: Fri Mar 3 21:38:55 2017
InstallationDate: Installed on 2016-08-31 (184 days ago)
InstallationMedia: Ubuntu-MATE 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
SourcePackage: fprintd
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: fprintd (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
** Attachment removed: "JournalErrors.txt"
https://bugs.launchpad.net/ubuntu/+source/fprintd/+bug/1669927/+attachment/4830995/+files/JournalErrors.txt
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https://bugs.launchpad.net/bugs/1669927
Title:
fprintd fails often and there are traces in log files
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