https://bugs.kde.org/show_bug.cgi?id=515390

            Bug ID: 515390
           Summary: With "negative" fractional scaling (i.e. less than 1),
                    Google Chrome can't handle it
    Classification: Plasma
           Product: kwin
      Version First 6.5.5
       Reported In:
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: wayland-generic
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Created attachment 189138
  --> https://bugs.kde.org/attachment.cgi?id=189138&action=edit
screencast showing the problem

SUMMARY
In Kwin wayland, when setting the fractional scaling of a screen to a value
less than 1, Google Chrome windows starts behaving really weirdly:
- windows maximize to a size of the pre-scaled screen (i.e. smaller than what
is actually presented)
- when trying to resize a window, it jump all over the place.
- When trying to use the mouse to point at things, the activation point is
always to the left and up from the actual mouse cursor - as if it doesn't scale
the input coordinates properly.

STEPS TO REPRODUCE
1. Set the a fractional scaling of one screen to 0.85
2. Open Google Chrome on that screen
3. Maximize the window

OBSERVED RESULT
Window maximizes to a size that is certainly less than the maximum size

EXPECTED RESULT
Window should maximize to cover the entire screen.

SOFTWARE/OS VERSIONS
Operating System: KDE neon User Edition
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.14.8-061408-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 12th Gen Intel® Core™ i7-12700H
Memory: 32 GiB of RAM (31.0 GiB usable)
Graphics Processor: Intel® Iris® Xe Graphics

ADDITIONAL INFORMATION
See attached screencast showing the problematic behaviors.

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