# Bug:Qt D3D Rendering Error **URL:** \ **Category:** Help\ **Created:** [February 2, 2024, 2:00pm UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637 "2024-02-02T14:00:33Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![BiYT](https://avatars.discourse-cdn.com/v4/letter/b/35a633/32.png) [@BiYT](https://forums.ankiweb.net/u/BiYT)\ **Post date:** [February 2, 2024, 2:00pm UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/1 "2024-02-02T14:00:33Z")
Bug behavior： ![image](https://us1.discourse-cdn.com/flex002/uploads/anki2/original/2X/7/7d974741f35238838f0257dccf3ff0aecd26abb2.png) Tested by git bisect in default video driver,I located the bug begin from a31d669a90b2931a4c335a9b68332197aa93e67d After the bisect,I also try stable Anki Version ⁨23.12.1 (1a1d4d54)⁩ Python 3.9.15 Qt 6.6.1 PyQt 6.6.1.Bug appear in Direct3D but not in OpenGL. It seems a Qt bug.Really rare bug? Windows 11,NVIDIA RTX 3060,the latest drivers available as of now ---
**Author:** ![NameLessGO](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/namelessgo/32/34298_2.png) [@NameLessGO](https://forums.ankiweb.net/u/NameLessGO)\ **Post date:** [February 2, 2024, 7:17pm UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/2 "2024-02-02T19:17:37Z")
Check if [Qt5](https://github.com/ankitects/anki/releases/tag/23.12.1) have the same problem hard to say if it is a Qt or Direct3D problem Could you share your card/note type as a sample? ---
**Author:** ![BiYT](https://avatars.discourse-cdn.com/v4/letter/b/35a633/32.png) [@BiYT](https://forums.ankiweb.net/u/BiYT)\ **Post date:** [February 3, 2024, 7:54am UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/3 "2024-02-03T07:54:12Z")
[The bug cards](https://ankiweb.net/shared/info/1725605012) is written by HTML. [Another cards](https://ankiweb.net/shared/info/34073638) that I haven’t reproduced bug is just simply written without HTML. Qt5 version is testing. ---
**Author:** ![BiYT](https://avatars.discourse-cdn.com/v4/letter/b/35a633/32.png) [@BiYT](https://forums.ankiweb.net/u/BiYT)\ **Post date:** [February 3, 2024, 8:51am UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/4 "2024-02-03T08:51:10Z")
There is no option to use Direct3D in Anki Qt5 Windows. ---
**Author:** ![abdo](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/abdo/32/654_2.png) [@abdo](https://forums.ankiweb.net/u/abdo)\ **Post date:** [February 4, 2024, 2:54pm UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/5 "2024-02-04T14:54:55Z")
Direct3D is not available for Qt5. The software driver will probably work with no issues in Qt6. [https://docs.ankiweb.net/platform/windows/display-issues.html](https://docs.ankiweb.net/platform/windows/display-issues.html) ---
**Author:** ![dae](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/dae/32/65_2.png) [@dae](https://forums.ankiweb.net/u/dae)\ **Post date:** [February 5, 2024, 10:04am UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/6 "2024-02-05T10:04:27Z")
OpenGL is a better choice than software if the former is working correctly. Unfortunately the best driver depends on each user’s system, which is why we have to offer a choice. ---
**Author:** ![BiYT](https://avatars.discourse-cdn.com/v4/letter/b/35a633/32.png) [@BiYT](https://forums.ankiweb.net/u/BiYT)\ **Post date:** [February 5, 2024, 2:49pm UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/7 "2024-02-05T14:49:55Z")
I would believe the bug derive from [the decks](https://ankiweb.net/shared/info/1725605012). ---
**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/anki2/original/1X/8f1279ababc5879d54e4838989f606cfe55af8c7.jpeg) [@system](https://forums.ankiweb.net/u/system)\ **Post date:** [March 6, 2024, 2:50pm UTC](https://forums.ankiweb.net/t/bug-qt-d3d-rendering-error/40637/8 "2024-03-06T14:50:18Z")
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