Bug 458633 - When unplugging a docking station with LID closed and locked screen, unlocking UI never appears on the lockscreen background
Summary: When unplugging a docking station with LID closed and locked screen, unlockin...
Status: RESOLVED WORKSFORME
Alias: None
Product: kscreenlocker
Classification: Plasma
Component: general (show other bugs)
Version: 5.25.4
Platform: Other Linux
: NOR major
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-09-02 09:51 UTC by frederic.parrenin@univ-grenoble-alpes.fr
Modified: 2022-11-25 14:54 UTC (History)
1 user (show)

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Description frederic.parrenin@univ-grenoble-alpes.fr 2022-09-02 09:51:29 UTC 
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. Connect a KDE laptop to a docking station, close the LID and lock the screen.
2. Unplug the docking station
3. Open the LID

OBSERVED RESULT
There is no greeter to unlock the screen
The only way I found to get the greeter is to connect back to the docking station.

EXPECTED RESULT
There should be a greeter to unlock the screen.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian 12
(available in About System)
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.4
Comment 1 frederic.parrenin@univ-grenoble-alpes.fr 2022-09-02 09:54:33 UTC 
I forgot to say that this is with X11.
Comment 2 frederic.parrenin@univ-grenoble-alpes.fr 2022-09-09 15:31:00 UTC 
Just to add that this problem does not always happen, it is not 100% reproducible.
I would say something like 50% on average.
It is not clear to me in which circumstances it happens.
Comment 3 Nate Graham 2022-11-10 17:53:52 UTC 
When you say "there is no greeter", is the screen blank?" Or do you see the blurred wallpaper, but with no unlocking UI? Or something else?

Can you attach a photograph of what it looks like when it's in this state? Thanks!
Comment 4 frederic.parrenin@univ-grenoble-alpes.fr 2022-11-10 18:52:13 UTC 
Hi Nate, from what I remember, there was the wallpaper but no UI to unlock.
I will try to reproduce and post a picture next time I go to my office.
Nowadays I am on Wayland and I do not see this problem anymore.
Comment 5 Nate Graham 2022-11-10 18:58:11 UTC 
In that case the bug was in KScreenLocker, not KScreen. Moving it there.
Comment 6 Bug Janitor Service 2022-11-25 05:21:52 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 7 frederic.parrenin@univ-grenoble-alpes.fr 2022-11-25 11:09:17 UTC 
So I tried today to reproduce this bug, but it did not show up.
I am on Wayland nowadays, so this bug does not affect me anymore.
Comment 8 Nate Graham 2022-11-25 14:54:27 UTC 
OK cool, thanks!