This bug was fixed in the package gnome-shell - 3.36.9-0ubuntu0.20.04.1
---------------
gnome-shell (3.36.9-0ubuntu0.20.04.1) focal; urgency=medium
* New upstream release (LP: #1921963):
- Improve login screen accessibility
- Prefer image-data hint over app-icon in notifications
- Plugged leak
- Fixed crashes
* debian/patches:
- Correctly handle login cancellation and failures (LP: #1915066)
- Show errors on fingerprint failures and limit retries (LP: #1865838)
- gdm: Don't try to retry authenticating when the service is unavailable
(LP: #1915570)
- Enable to use Escape to cancel auth requests (with limits) (LP: #1921929)
-- Marco Trevisan (Treviño) <[email protected]> Wed, 31 Mar 2021
00:50:16 +0200
** Changed in: gnome-shell (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1915066
Title:
Authentication is cancelled (and immediately restarted) hitting Escape
causing fingerprint to stop working and multiple stale gdm working
Status in GNOME Shell:
Unknown
Status in gnome-shell package in Ubuntu:
Fix Released
Status in gnome-shell source package in Focal:
Fix Released
Status in gnome-shell source package in Groovy:
Fix Committed
Bug description:
[ Test case ]
In the user session lockscreen (gdm login screen is fine):
- Lock the screen
- Hit Enter
- Hit Escape
- Repeat
Checking watch -n1 "ps aux |grep gdm-session-worker" (or just ps'ing
after unlocked) gdm workers should not be running (a part the one used
for logging in).
Fingerprint unlocking is particularly hit by this as the service may
prevent further authentication to happen until the PAM module times
out.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3654
[ Regression potential ]
Authenticating at login screen or at unlock screen stops working after
wrong credentials have been used once or the request has been
cancelled via escape key.
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