Crash of kDrive AppImage on Fedora KDE Wayland — requires QT_QPA_PLATFORM=xcb to start

[manuel09]

Note: Please write your issue only in english

Description
When launching the kDrive AppImage (version 3.7.2.20250703) on Fedora 41 with KDE Plasma running on Wayland, the app crashes immediately. The kDrive_client process aborts with signal SIGABRT and no GUI appears. The app only works if launched with QT_QPA_PLATFORM=xcb.

Steps to reproduce
Steps to reproduce the behavior:

1. Use Fedora 42 with KDE Plasma on Wayland session (default).
2. Download the official kDrive AppImage version 3.7.2.20250703.
3. Run the AppImage normally via terminal or double-click:
4. Observe the app crashes with no GUI shown.

Expected behavior
The application should start normally and show the GUI without needing to set any environment variables.

Screenshots
N/A (app crashes immediately, no GUI shown)

Logs
From system logs (journalctl):
Process 12534 (kDrive_client) terminated abnormally with signal 6/ABRT

Additional context
Launching the AppImage with this command works as a workaround:
QT_QPA_PLATFORM=xcb ./kDrive-3.7.2.20250703-amd64.appimage

This suggests an incompatibility with native Wayland support or Qt backend selection.
Please consider improving Wayland support or adding an automatic fallback to xcb. Alternatively, document this requirement for Wayland users.

System info:

Fedora 42 KDE Plasma 6.4.3 (Wayland)

Qt6 version 6.9.1

Linux 6.16.0-0.rc7.250727.ec2df436.263.vanilla.fc42.x86_64

AppImage downloaded from official Infomaniak site

[NovaliX-Dev]

For those who use Gear Lever for the appimages integrations, remove also the default DESKTOP_INTEGRATION=1 to make it work

[NovaliX-Dev]

Do you have the same backtrace as #880 ? It might be the issue you have

[vb-git]

Just to confirm i had the same issue and the fix worked fine to get it going again, thanks!

[guerrajose]

Maybe have also a look at #1015, for me it was a problem with Wayland on KDE and it got solved by logging in a temporary X11 session: #1015 (comment)

There is also a proposed fix without the need to use X11: #977 (comment) (not tested on my side)

Launching the AppImage with this command works as a workaround: QT_QPA_PLATFORM=xcb ./kDrive-3.7.2.20250703-amd64.appimage

[pintaf]

Hello.

I also had this issue under omarchy (arch linux)

Solved it by creating a file (I named it kdrive-wrapper.sh):

#!/bin/bash
export QT_QPA_PLATFORM=xcb
export QT_QPA_PLATFORMTHEME=qt5ct
export WAYLAND_DISPLAY=
exec /usr/local/bin/kDrive.AppImage "$@"

Then you can call this kdrive-wrapper.sh and it might work for you as well !