EasyEffects 8.0 does not launch on Ubuntu 25.10

[Denebet]

EasyEffects Version

EasyEffects 8.0

What package are you using?

Flatpak (Flathub)

Distribution

Ubuntu 25.10

Describe the bug

EasyEffects 8.0 does not launch on ubuntu 25.10 (GNOME-Shell 49, Wayland).

Expected Behavior

No response

Debug Log

Debug Log

/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=easyeffects com.github.wwmm.easyeffects
qt.qpa.xcb: could not connect to display 
qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin.
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: xcb, vkkhrdisplay, vnc, minimalegl, eglfs, minimal, linuxfb, wayland-brcm, wayland-egl, wayland, offscreen.

Additional Information

No response

[wwmm]

qt.qpa.xcb: could not connect to display

It is the first time I see an error like this. Are you trying to start EasyEffects through ssh or something similar?

[moritzderallerechte]

I use Ubutu 25.10 and it works for me. Flatpak version 8.0.0

[Denebet]

Neither ssh nor anything else. It works for me by disabling the "Wayland windowing system" option via Flatseal.

[wwmm]

It works for me by disabling the "Wayland windowing system" option via Flatseal.

Very strange. We do not do calls directly related to wayland or Xorg for something like this to be necessary.

Considering the error messages are directly related to a Qt plugin the only thing that comes to my mind is some kind of problem in the Qt files installation or configuration. But what could this be I do not know.

[Denebet]

Thank you, in any case, for your attention!

[Denebet]

In this last context (disabling the "Wayland windowing system" option via Flatseal), the terminal returns:

/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=easyeffects com.github.wwmm.easyeffects
QApplication: invalid style override 'kvantum' passed, ignoring it.
	Available styles: Breeze, Windows, Fusion
easyeffects: stream_input_effects.cpp:243 Before: 51 -> alsa_input.usb-Sonix_Technology_Co.__Ltd._USB_2.0_Camera-02.mono-fallback
easyeffects: stream_input_effects.cpp:243 Before: 51 -> alsa_input.usb-Sonix_Technology_Co.__Ltd._USB_2.0_Camera-02.mono-fallback
easyeffects: main.cpp:139 Enabling global bypass
QWebEngineDesktopMediaRequest is neither a default constructible QObject, nor a default- and copy-constructible Q_GADGET, nor a QObject marked as uncreatable.
You should not use it as a QML type.
QSystemTrayIcon::setVisible: No Icon set
qrc:/ui/PageStreamsEffects.qml:12:1: QML PageStreamsEffects: Created graphical object was not placed in the graphics scene.
qt.graphs2d.series: points list size is 0, can't calculate spline points.

The lines:

QApplication: invalid style override 'kvantum' passed, ignoring it.
Available styles: Breeze, Windows, Fusion

are only due to an attempt to use Kvantum to apply a graphics style.

[wwmm]

In this last context (disabling the "Wayland windowing system" option via Flatseal), the terminal returns:

Hum... So far I did not see anything that could justify the window not being able to open.