[kde] [Bug 499124] New: Login Manager (sddm): Don't switch between screens on resume

[Jens]

https://bugs.kde.org/show_bug.cgi?id=499124

            Bug ID: 499124
           Summary: Login Manager (sddm): Don't switch between screens on
                    resume
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Neon
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: jens-bugs.kde.org at spamfreemail.de
  Target Milestone: ---

SUMMARY
When my laptop resumes from hibernation or sleep, the external screens I have
connected take some time to sync and in this time, the login window's focus
bounces several times between screens. It is impossible to enter the password
until all screens have woken up fully (~ 10..20 seconds) although my laptop's
screen is already on and usable and I *could* have already logged in. If I type
anyway, the characters of my password get distributed somewhat by random
between all password fields on all connected screens.

STEPS TO REPRODUCE
1. Connect some slow external screens
2. Sleep mode
3. Resume from sleep

OBSERVED RESULT
Flickering

EXPECTED RESULT
The login window focus should stay on the primary (internal) screen unless the
mouse is actually moved to another screen and clicked, or the internal screen
is deactivated for, say, >3s. This way it is possible to log in while the
external screens are still synchronizing. This bugs me about 10 times a day and
I suppose I'm not alone so I think an investigation would be worth it.

SOFTWARE/OS VERSIONS: KDE Neon 24.04 with all updates applied.
Operating System: KDE neon 6.2
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
Kernel Version: 6.8.0-51-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 13th Gen Intel® Core™ i7-1370P
Memory: 31.0 GiB of RAM
Graphics Processor: Mesa Intel® Graphics
Manufacturer: LENOVO
System Version: ThinkPad T16 Gen 2

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