qt.qpa.wayland: Wayland does not support QWindow::requestActivate

[sagitter]

Hi all.

What happens?

PPSSPPQt-1.10.2 crashes on Fedora 32 Gnome + Wayland:

$ PPSSPPQt
QWaylandGLContext: failed to create EGLContext, error=3009
QObject::connect: No such slot MainWindow::frameSkippinGroup_triggered(QAction *)
I: Core.cpp:190: pixel_res: 960x544. Calling NativeResized()
I: NativeApp.cpp:1340: NativeResized - setting flag
06:52:565 UI/NativeApp.cpp:402 E[LOADER]: Failed graphics backends: OPENGL
06:52:565 Core/Config.cpp:609 E[LOADER]: Graphics backend failed for 0, trying another
06:52:565 Core/Config.cpp:634 E[LOADER]: All graphics backends failed
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
I: QtMain.cpp:346: MainUI::Destructor
Segmentation fault (core dumped)

The opened window is empty

What should happen?

Correctly showed and usable.

Other softwares had same problem on Fedora (for example, Paraview); a workaround was to use:

$ QT_QPA_PLATFORM=xcb PPSSPPQt

[chriztheanvill]

This issue also happens in KDE plasma in Kubuntu: With

$ sudo apt install ppsspp-qt
$ QT_QPA_PLATFORM=xcb PPSSPPQt

Thank you.

[ghost]

I didn't have any such issue when I used QT and Wayland recently.
Didn't need to use XWayland to fix it like someone suggested here.
There is another issue that the UI doesnt scale correctly and that even happens on X11 though.

[unknownbrackets]

Sounds to me like this was a Qt issue, then, and has been fixed now.

I think we might already have an issue about scaling in Qt? But it should probably be separate.

Closing based on the above. If you're still seeing this issue with latest versions of Qt and PPSSPP, please comment and we can reopen.

-[Unknown]

[sagitter]

This issue is still unresolved. PPSSPP is not correclty visualized under with Qt-5.15.5 under Wayland on Fedora 36:

$ /usr/bin/PPSSPPQt
QSocketNotifier: Can only be used with threads started with QThread
ThreadManager::Init(compute threads: 8, all: 16)
04:39:108 Net/NetBuffer.cpp:41 E[IO]: FlushSocket failed
QObject::connect: No such slot MainWindow::frameSkippinGroup_triggered(QAction *)
04:39:158 Core/Config.cpp:1587 E[LOADER]: Failed to download http://www.ppsspp.org/version.json: 0
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: setGrabPopup called with a parent, QtWaylandClient::QWaylandXdgSurface(0x55c667fb0950) which does not match the current topmost grabbing popup, QtWaylandClient::QWaylandXdgSurface(0x55c66879f200) According to the xdg-shell protocol, this is not allowed. The wayland QPA plugin is currently handling it by setting the parent to the topmost grabbing popup. Note, however, that this may cause positioning errors and popups closing unxpectedly because xdg-shell mandate that child popups close before parents

[unknownbrackets]

Does it happen with Qt 6? It sounded like this is a Qt issue.

-[Unknown]

[sagitter]

Does it happen with Qt 6? It sounded like this is a Qt issue.

-[Unknown]

I don't know, i must try to rebuild PPSSPP with Qt6

[sagitter]

Does it happen with Qt 6? It sounded like this is a Qt issue.

-[Unknow

It's not ready for Qt6, i seen.
Is there a patch for that?