[konsole] [Bug 492845] New: Konsole screen flickers and clears text selection

[Oded Arbel]

https://bugs.kde.org/show_bug.cgi?id=492845

            Bug ID: 492845
           Summary: Konsole screen flickers and clears text selection
    Classification: Applications
           Product: konsole
           Version: master
          Platform: Neon
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: oded at geek.co.il
  Target Milestone: ---

Created attachment 173460
  --> https://bugs.kde.org/attachment.cgi?id=173460&action=edit
screen cast showing the problem.

SUMMARY
With a few tabs and a full screen application (such as mc or watch), Konsole
screen flickers constantly. Aside from being really annoying, this messes up
with selecting text - as the flicker clears the text selection.

STEPS TO REPRODUCE
Reproduction is unstable for me, but generally I can get it to flicker by:
1. Start a few tabs, in each run something that blocks the shell, such as
tailing a log file, journal or dmesg.
2. In the last tab, run a full screen app such as MC or `watch` on something.
3. try to select text off the screen (when using MC, remember to hold SHIFT).

OBSERVED RESULT
The screen flickers every few seconds, and any text selected is cleared.

EXPECTED RESULT
The screen should not flicker and text selection should remain until the user
clears it.

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 6.1.80
KDE Frameworks Version: 6.6.0
Qt Version: 6.7.2
Kernel Version: 6.8.0-41-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 12th Gen Intel® Core™ i7-12700H
Memory: 31.0 GiB of RAM
Graphics Processor: Mesa Intel® Graphics

ADDITIONAL INFORMATION
Using Konsole from Neon noble unstable, reporting itself as version 24.11.70

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