[systemsettings] [Bug 448388] New: Weird behaviour when openning Gamma with Night color enabled

[Iyán Méndez Veiga]

https://bugs.kde.org/show_bug.cgi?id=448388

            Bug ID: 448388
           Summary: Weird behaviour when openning Gamma with Night color
                    enabled
           Product: systemsettings
           Version: 5.23.90
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: kcm_kgamma
          Assignee: unassigned-bugs at kde.org
          Reporter: me at iyanmv.com
                CC: plasma-bugs at kde.org
  Target Milestone: ---

SUMMARY
If Night color is enabled and you go to System Settings -> Display and Monitor
-> Gamma, it is abruptly disabled. This is fine although it could be improved
by a smoother transition, like when it's properly enabled and disabled by the
user, the problem is that after exiting the Gamma menu, Night color is not
enabled again. The solution is to disable and enable manually again.


STEPS TO REPRODUCE
1. Enable night color
2. Go to Gamma settings

OBSERVED RESULT
Night color suddenly disabled, and not restored after exiting Gamma menu.

EXPECTED RESULT
Night color is disabled with a smooth transition, and enabled back again when
exiting Gamma menu.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.23.90
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Kernel Version: 5.16.0-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-4790K CPU @ 4.00GHz
Memory: 15.5 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1070/PCIe/SSE2

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