Hi, i’m the maintainer of snap anki package. I’ve noticed a blank main window issue with the latest version 25.09, while the previous build, the version 25.07.5 doesn’t have this issue. After comparing, I’ve discovered that this might be due to the PyQt6 being updated to 6.9.2. I’d like to know ho…

And this issue can be resolved by switching the driver to vulkan or software. Since OpenGL is the default option and most users should be using the default option, so still need fix out.

I am not familiar with how snap packages are built. But, the following might be relevant. [image] Provide an easier way to change PyQt version Suggestions Due to the issue mentioned in Anki 25.07/08 Beta 1-2 - #21 by vaibhav (issue introduced in pyqt-qt6 v6.8.…

Tried revert to 6.9.1 but the problem persists. Keep getting these error messages. Starting main loop... Qt warning: Backend texture is not a Vulkan texture. Qt debug: Compositor returned null texture Qt warning: Backend texture is not a Vulkan texture. Qt debug: Compositor returned null textur…

Have you tried downgrading pyqt6-webengine?

Yes, did. But unfortunately it didn’t work.

How can i fall back to pyqt6.9.1 version when installed by pypi?

Anki Help

vaibhav September 14, 2025, 7:17am 3

I am not familiar with how snap packages are built. But, the following might be relevant.

Topic		Replies	Views
Getting Qt5 version from the Python wheel Help	2	1076	May 1, 2023
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Anki-24.04.1-linux-qt6 ImportError Qt undefined symbol Help	7	263	June 21, 2024
Build failing on Linux (Ubuntu) after latest update Development	7	245	February 11, 2025
[Linux] How to resolve `No module named ‘PyQt6.QtQuick’`? Help	3	146	January 20, 2026

How can i fall back to pyqt6.9.1 version when installed by pypi?

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