** 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

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