from qt5-qtbase-examples-5.12.5-1.fc31.x86_64 the dropEvent never fires rendering drag and drop, well, drag only. Not so useful!
I should probably note that this also occurs when I use the precompiled version: /usr/lib64/qt5/examples/widgets/draganddrop/draggableicons/draggableicons
When I run the Qt4 version (from package qt-examples-4.8.7-50.fc31.x86_64) of the same program it works just fine. /usr/lib64/qt4/examples/draganddrop/draggableicons/draggableicons
Can anyone else verify this behavior? Also, any suggestions about how to further troubleshoot would be most welcome. I’m running kernel 5.3.14-300.fc31.x86_64.
I encountered a problem with drag&drop in OpenShot.
I’m not an expert, so I don’t know if it is the same issue as yours, but I read about a workaround, I can’t remember where, for QT programs on wayland. env QT_QPA_PLATFORM=xcb openshot-qt
Because this occurs on the mutter compositor but not on weston, I’m beginning to think this is a mutter problem. I ran the application under both compositors like this:
Comparing the result I see a wl_data_device@11.drop() under weston but not under mutter. I have also tried mutter-3.35.1-2.fc32.x86_64 from the Rawhide repo, but get the same result. I think I’ll do a little more digging and file a bug against mutter.