Incorrect aspect ratio / No fullscreen support for external monitors still in iPadOS 2026
1. Environment:
- Device: [iPad Air 5]
- OS Version: iPadOS 2026.2.1
- **Moonlight Version:**9.0.2
- Setup: iPad connected to an external monitor via Type-C, Stage Manager enabled (Extended display mode).
2. Steps to Reproduce:
- Connect the iPad to an external monitor and enable Stage Manager.
- Drag the
moonlight-ios window to the external monitor.
- Attempt to maximize/fullscreen the window on the external display.
3. Bug Description:
When running on an external monitor, moonlight-ios fails to recognize the external display's native aspect ratio (e.g., 16:9). The video stream remains strictly locked to the iPad's native 4:3 aspect ratio, resulting in massive black bars on the left and right sides of the external screen.
4. Analysis & Speculation:
The app currently does not seem to read the metadata/screen bounds of the extended display via the newer iPadOS screen APIs. It continues to report the local iPad screen resolution to the host instead of the external display's resolution.
5. Impact:
High. Since the iPadOS 2026 updates, almost all major remote desktop apps (StreamLink, Windows RDP, ToDesk, RustDesk) have successfully implemented proper extended display fullscreen support. Moonlight is currently falling behind in this regard, making external monitor usage very suboptimal. Adapting to the modern external display APIs would be a huge quality-of-life update for iPad power users.
Incorrect aspect ratio / No fullscreen support for external monitors still in iPadOS 2026
1. Environment:
2. Steps to Reproduce:
moonlight-ioswindow to the external monitor.3. Bug Description:
When running on an external monitor,
moonlight-iosfails to recognize the external display's native aspect ratio (e.g., 16:9). The video stream remains strictly locked to the iPad's native 4:3 aspect ratio, resulting in massive black bars on the left and right sides of the external screen.4. Analysis & Speculation:
The app currently does not seem to read the metadata/screen bounds of the extended display via the newer iPadOS screen APIs. It continues to report the local iPad screen resolution to the host instead of the external display's resolution.
5. Impact:
High. Since the iPadOS 2026 updates, almost all major remote desktop apps (StreamLink, Windows RDP, ToDesk, RustDesk) have successfully implemented proper extended display fullscreen support. Moonlight is currently falling behind in this regard, making external monitor usage very suboptimal. Adapting to the modern external display APIs would be a huge quality-of-life update for iPad power users.