https://bugs.kde.org/show_bug.cgi?id=505794
Bug ID: 505794
Summary: VLC + Wayland + KWin: Missing window decorations
Classification: Plasma
Product: kwin
Version First 5.27.5
Reported In:
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: decorations
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Here’s a properly formatted bug report for **bugs.kde.org** based on your issue
with VLC on KDE Plasma (Wayland):
---
### **SUMMARY**
VLC (v3.0.21) launches in fullscreen mode by default on KDE Plasma (Wayland),
missing window decorations (title bar, minimize/maximize/close buttons).
Forcing XWayland (`QT_QPA_PLATFORM=xcb`) or adjusting VLC settings does not
resolve the issue.
### **STEPS TO REPRODUCE**
1. Launch VLC on KDE Plasma (Wayland session).
2. Observe: Window opens in fullscreen with no decorations (cannot
minimize/resize/close via standard controls).
3. Attempted fixes (none worked):
- Launching with `QT_QPA_PLATFORM=xcb`.
- Disabling "Start in fullscreen" in VLC settings.
- Changing video output to "X11 (XCB)" in VLC.
- Creating KWin window rules to enforce decorations.
### **OBSERVED RESULT**
- VLC ignores KDE’s window management rules under Wayland.
- No title bar or window controls are visible, even when explicitly disabled in
fullscreen settings.
### **EXPECTED RESULT**
- VLC should respect KDE’s window decorations and open in a resizable window
with standard controls (minimize/maximize/close).
### **SOFTWARE/OS VERSIONS**
- **Linux/KDE Plasma**: openSUSE Tumbleweed 20250606
- **KDE Plasma Version**: 6.3.5
- **KDE Frameworks Version**: 6.14.0
- **Qt Version**: 6.9.1
- **Kernel Version**: 6.15.0-1-default (64-bit)
- **Graphics Platform**: Wayland
- **VLC Version**: 3.0.21
### **ADDITIONAL INFORMATION**
- **Workarounds attempted**:
- Running under X11 session works (window decorations appear).
- Other Qt/GTK apps (e.g., MPV, QMPlay2) handle Wayland decorations
correctly.
- **Relevant logs**:
- No crashes occur (no backtrace needed).
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