** Description changed:

+ [ Impact ]
+ 
+ No fingerprint errors are exposed on fingerprint login failures.
+ 
  from journalctl, gdm-fingerprint shows error there after retried 5 times
  of fingerprint login failed, so I open this issue here.
  
- Steps to reproduce issue:
+ 
+ [ Test case ]
+ 
  1. enroll fingerprint for your right index finger.
  2. logout
  3. login and try login by incorrect finger e.g. middle finger
- 4. after 5 times retry. There's no error popup, then re-try index finger 
still no any message remind users they can not try fingerprint anymore.
+ 4. Each time the wrong finger is used an error is shown
+ 5. After 3 times retries, an authentication error is shown, suggesting
+    to use another method.
  
- It will confuse user.
+ [ Regression potential]
  
- Suggest behavior:
-  1. Each time user try fingerprint failed, show error message to remind user.
-  2. When user exceed 5 time errors, show error message to remind user input 
password instead.
+ Wrong errors are shown during both fingerprint auth and other kinds of 
authentications.
+ Password failures aren't properly exposed. Verification can't restart on 
error.
  
- ProblemType: Bug
- DistroRelease: Ubuntu 20.04
+ ---
+ 
+ ProblemType: BugDistroRelease: Ubuntu 20.04
  Package: gdm3 3.34.1-1ubuntu1
  ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
  Uname: Linux 5.4.0-14-generic x86_64
  ApportVersion: 2.20.11-0ubuntu18
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Mar  3 15:32:00 2020
  InstallationDate: Installed on 2020-03-02 (0 days ago)
- InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200301)
- SourcePackage: gdm3
+ InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 
(20200301)SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1865838

Title:
  no error displayed on failed fingerprint authentication

Status in gdm:
  New
Status in OEM Priority Project:
  New
Status in fprintd package in Ubuntu:
  Triaged
Status in gnome-shell package in Ubuntu:
  In Progress
Status in fprintd source package in Focal:
  Triaged
Status in gnome-shell source package in Focal:
  In Progress

Bug description:
  [ Impact ]

  No fingerprint errors are exposed on fingerprint login failures.

  from journalctl, gdm-fingerprint shows error there after retried 5
  times of fingerprint login failed, so I open this issue here.

  
  [ Test case ]

  1. enroll fingerprint for your right index finger.
  2. logout
  3. login and try login by incorrect finger e.g. middle finger
  4. Each time the wrong finger is used an error is shown
  5. After 3 times retries, an authentication error is shown, suggesting
     to use another method.

  [ Regression potential]

  Wrong errors are shown during both fingerprint auth and other kinds of 
authentications.
  Password failures aren't properly exposed. Verification can't restart on 
error.

  ---

  ProblemType: BugDistroRelease: Ubuntu 20.04
  Package: gdm3 3.34.1-1ubuntu1
  ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
  Uname: Linux 5.4.0-14-generic x86_64
  ApportVersion: 2.20.11-0ubuntu18
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Mar  3 15:32:00 2020
  InstallationDate: Installed on 2020-03-02 (0 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 
(20200301)SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

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