Bug 404405 - Needs to unlock twice occasionally
Summary: Needs to unlock twice occasionally
Status: RESOLVED WORKSFORME
Alias: None
Product: kscreenlocker
Classification: Unmaintained
Component: general (other bugs)
Version First Reported In: unspecified
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-02-15 16:53 UTC by hexchain
Modified: 2021-04-10 17:00 UTC (History)
5 users (show)

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Description hexchain 2019-02-15 16:53:30 UTC 
SUMMARY

No matter how the screen lock is triggered (either by timeout or resuming from suspend), it sometimes appears immediately again after unlocking.


STEPS TO REPRODUCE

There is no stable way to reproduce, it just happens randomly.

1. Lock screen (by timeout or resuming from suspend)
2. Input password to unlock

OBSERVED RESULT

Sometimes the screen is immediately locked again.

EXPECTED RESULT

The screen is unlocked.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.15.0
KDE Frameworks Version: 5.55.0
Qt Version: 5.12.1

This issue is also seen on 5.14.*.

ADDITIONAL INFORMATION
Comment 1 hexchain 2019-02-15 17:04:14 UTC 
Here are some logs that appeared when this issue last happened:

Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: Qt: Session management error: networkIdsList argument is NULL
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: UdevQt: unable to create udev monitor connection
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/WallpaperFader.qml:138:13: QML PropertyChanges: Cannot assign to non-existent property "opacity"
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/VirtualKeyboard.qml:20:1: module "QtQuick.VirtualKeyboard" is not installed
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/Clock.qml:40:13: Unable to assign [undefined] to QColor
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/Clock.qml:39:13: Unable to assign [undefined] to int
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/Clock.qml:47:13: Unable to assign [undefined] to QColor
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/Clock.qml:46:13: Unable to assign [undefined] to int
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/lockscreen/LockScreenUi.qml:166: ReferenceError: clockShadow is not defined
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/UserDelegate.qml:174: ReferenceError: ColorScope is not defined
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/UserDelegate.qml:161:9: Unable to assign [undefined] to QColor
Feb 15 17:29:20 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/UserDelegate.qml:160:9: Unable to assign [undefined] to int
Feb 15 17:31:20 hostname kscreenlocker_greet[13859]: couldn't lock local file
Feb 15 17:37:37 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/WallpaperFader.qml:119:13: QML PropertyChanges: Cannot assign to non-existent property "opacity"
Feb 15 17:37:47 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/WallpaperFader.qml:138:13: QML PropertyChanges: Cannot assign to non-existent property "opacity"
Feb 15 17:37:54 hostname kscreenlocker_greet[13859]: file:///usr/share/plasma/look-and-feel/org.kde.breeze.desktop/contents/components/WallpaperFader.qml:119:13: QML PropertyChanges: Cannot assign to non-existent property "opacity"
Comment 2 S. Bryant 2020-03-04 16:52:03 UTC 
This bug is over a year old, but I had not seen it in that year despite keeping relatively up to date.  I have now updated to Plasma 5.18.2, and now this happens quite often.

I've generally noticed the behaviour after suspending, but it is not reproducible after a short suspend.  There may be a time factor involved.

Possibly relevant: the first unlock screen has the user picture enclosed and cropped in a circle; the second does not.  Perhaps the behaviour is caused by a bug in the lock screen theme.  I'll see if I can test that; I was using "Breeze for openSUSE".
Comment 3 hexchain 2021-04-10 13:18:11 UTC 
I have not seen this issue happen for a long time. Can other subscribers also confirm?
Comment 4 David Edmundson 2021-04-10 17:00:08 UTC 
Ok, lets close it can always be reopened.

There isn't enough information to active work on it in the current state without it being reproducible