[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[Thomas Lübking via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

Thomas Lübking  changed:

   What|Removed |Added

   See Also||https://bugs.kde.org/show_b
   ||ug.cgi?id=362826

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[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[Thomas Lübking via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

Thomas Lübking  changed:

   What|Removed |Added

 Resolution|FIXED   |DUPLICATE

--- Comment #8 from Thomas Lübking  ---
then the workaround from comment #5 has no impact beause it works around the
wrong bug in qt.

*** This bug has been marked as a duplicate of bug 352019 ***

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[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[court via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

--- Comment #7 from court  ---
@Thomas, I did both of your suggestions and the dragging issue still persists
both with system tray icons and folders/files in Dolphin anywhere on the screen
and over the glxgears window

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[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[Thomas Lübking via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

--- Comment #6 from Thomas Lübking  ---
> 3. Remove finger from left-click button to end mouse input on the object 
> being drug

> Actual Results:  
> Icon moves in super slow motion and does not properly follow the mouse

This is bug  #352019 - altering the type won't help you since the morph ends
within 250ms or so anyway.
I don't say QTBUG-52560 isn't an *additional* "who cares about desktops" bug in
Qt5, but I'd rather not expect this bug to be fixed by a workaround on the
window type.

@court, run "kcmshell5 kwineffects" and deactivate the "morphing tooltips"
effect. Then check whether there's still a problem.

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[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[Thomas Lübking via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

--- Comment #4 from Thomas Lübking  ---
The compositor settings won't matter - it's most likely a known problem in Qt.
Try to suspend the compositor (SHIFT+Alt+F12), run glxgears and move a drag
over the running glxgears window. See what happens.

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[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[court via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

--- Comment #3 from court  ---
I should also note that I was using OpenGL 3.1 for rendering with this

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[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[Thomas Lübking via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

Thomas Lübking  changed:

   What|Removed |Added

 Resolution|--- |DUPLICATE
 Status|UNCONFIRMED |RESOLVED

--- Comment #2 from Thomas Lübking  ---
That's a bug in Qt event handling forgot how to compress events and/or Qt DnD
is causing "something™" that is slow on at least the nvidia blob.

The problem seem the repaints below (the faster the update, the more obvious
the problem becomes, the compositor being a natural trigger but not the
problem)
https://bugs.kde.org/show_bug.cgi?id=352019#c28

You'll rather not get this problem with DnDs that are NOT Qt5, compositing or
the tooltip animation should not matter.

*** This bug has been marked as a duplicate of bug 352019 ***

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[kwin] [Bug 361296] draggable objects don't move at the same speed as mouse input

[Marco Martin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=361296

Marco Martin  changed:

   What|Removed |Added

  Component|general |effects-various
   Assignee|k...@davidedmundson.co.uk|kwin-bugs-n...@kde.org
   Target Milestone|1.0 |---
Product|plasmashell |kwin

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