https://bugs.kde.org/show_bug.cgi?id=476566

            Bug ID: 476566
           Summary: Wine drag & drop coordinates off with Wayland
                    fractional scaling
    Classification: Plasma
           Product: kwin
           Version: 5.27.9
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: wayland-generic
          Assignee: kwin-bugs-n...@kde.org
          Reporter: david.p.war...@gmail.com
  Target Milestone: ---

Created attachment 162872
  --> https://bugs.kde.org/attachment.cgi?id=162872&action=edit
foobar2000 screenshot

SUMMARY
Drag & drop coordinates in Wine apps are wrong when Wayland fractional scaling
is enabled.

STEPS TO REPRODUCE
1. Set monitor to 150% scaling (Wayland session).
2. Install foobar2000, select Album List + Properties layout.
3. Drag file(s) from Dolphin to foobar2000 playlist area.

OBSERVED RESULT
The drop target area is off by a factor of 1.5. For example, if the playlist
area top left corner is positioned at (640,360), the mouse needs to be moved to
(960,540) for the drop reticle to appear.

EXPECTED RESULT
The mouse coordinates should match the drop target coordinates.

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.10

ADDITIONAL INFORMATION
Wine DPI scaling doesn't make seem to make a difference (configured via
winecfg).

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