Black window on Windows 11

[thedevleon]

Describe the bug
Rnote shows as a black / blank window on Windows 11. The cursor changes to a dot when hovering the window, and clicking in the rough area of the maximise button also maximizes the window (still black).

To Reproduce

1. Launch RNote
2. Get a black window

Expected behavior
RNote should launch normally.

Console Output
Unable to do in windows. I tried launching it via CMD and Powershell, but get no console output.

PS C:\Program Files\Rnote\bin> .\rnote.exe
PS C:\Program Files\Rnote\bin>

Screenshots

Desktop (please complete the following information):

• OS: Windows 11 Pro, 24H2, 26100.1301
• CPU: AMD Ryzen AI 9 HX 370 w/ Radeon 890M
• GPU: NVidia RTX 4060 Laptop
• App Version: Rnote v0.12.0
• Installation Source: GitHub (https://github.com/flxzt/rnote/releases/tag/v0.12.0)

[thedevleon]

I also tried 0.11.0 and 0.10.0, same issue. Graphics drivers are up to date.

[thedevleon]

After installing the dependencies for building from source (https://github.com/flxzt/rnote/blob/main/misc/building/rnote-windows-build.md#dependencies), the window is no longer black, but there's still a black outline around the window:

[Doublonmousse]

For the last one, that's #842 (so changes have to happen with gtk4 upstream).

For building the application, are you running it from the msys terminal or did you create the .exe and then installed it ?

[dax-leo]

Same problem on Windows 10. Black screen. Didn't try to compile it, just reverted back to 0.11.

[Doublonmousse]

Does this happen with the build from https://github.com/Doublonmousse/rnote/actions/runs/15075694294 ? This is from #1443, using windows server 2025 (instead of 2022) for building rnote on windows.

As compiling from source seems to work, seems like this is more related to the build process