[dolphin] [Bug 485630] New: Dolphin crashes when dragging png file to a FF window

[Michał Dybczak]

https://bugs.kde.org/show_bug.cgi?id=485630

            Bug ID: 485630
           Summary: Dolphin crashes when dragging png file to a FF window
    Classification: Applications
           Product: dolphin
           Version: 24.02.2
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: michal.dybczak at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

Application: dolphin (24.02.2)

Qt Version: 6.7.0
Frameworks Version: 6.1.0
Operating System: Linux 6.8.6-1-MANJARO x86_64
Windowing System: Wayland
Distribution: Manjaro Linux
DrKonqi: 6.0.3 [CoredumpBackend]

-- Information about the crash:
This happened on one specific PNG file that I wanted to drag over to the
Firefox window/site to upload it. I tried several times and at first, Dolphin
was blocked (it happens once in a while), meaning, that dragging seems to be
deactivated from some reason. I restarted Dolphin, attempted to drag the
fileThis happened on one specific PNG file that I wanted to drag over to the
Firefox window/site to upload it. I tried several times and at first, Dolphin
was blocked (it happens once in a while), meaning, that dragging seems to be
deactivated from some reason. I restarted Dolphin, attempted to drag the file,
but as usual, it wasn't working, and I had to try it a few times, then Dolphin
crashed. After automatic restart, the first attempt to drag the file resulted
in another crash.

Dolphin has MASSIVE issues (many of them) with the drag-drop feature. I am
observing this since months on Wayland (don't know if it happens on X11). It's
even hard to describe, because the symptoms are various:
1) first drag-drop action doesn't work in 80% of cases
2) usually the second attempt was sucessful, but lately I have to try 3-6 times
till it works
3) drag-drop sometimes (sporadically) disables untill Dolphin is restarted
4) crash (very, very rarely)

The same issue was on a different laptop, with the same system but diffwerent
hardware (hybird setup with Intel/Nvidia).

Operating System: Manjaro Linux 
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
Kernel Version: 6.8.6-1-MANJARO (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840HS w/ Radeon 780M Graphics
Memory: 30.6 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: TUXEDO
Product Name: TUXEDO Sirius 16 Gen1

The crash can be reproduced sometimes.

-- Backtrace (Reduced):
#4  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::get
(this=0x8, this=<optimized out>) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/tools/qscopedpointer.h:110
[...]
#7  QObject::deleteLater (this=0x0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/corelib/kernel/qobject.cpp:2456
#8  0x0000731348836cce in KDEPrivate::KUrlNavigatorButton::dragMoveEvent
(this=0x5b97abc1d9e0, event=<optimized out>) at
/usr/src/debug/kio/kio-6.1.0/src/filewidgets/kurlnavigatorbutton.cpp:323
#9  0x00007313471470d3 in QWidget::event (this=0x5b97abc1d9e0,
event=0x7ffe0055ece0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/widgets/kernel/qwidget.cpp:9237
#10 0x00007313470fbfcb in QApplicationPrivate::notify_helper
(this=this at entry=0x5b97aa8e4290, receiver=0x5b97abc1d9e0,
e=e at entry=0x7ffe0055ece0) at
/usr/src/debug/qt6-base/qtbase-everywhere-src-6.7.0/src/widgets/kernel/qapplication.cpp:3287


Reported using DrKonqi

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