bug#54033: Calibre's ebook-viewer only shows white-on-white or dark-on-dark.

[Guillaume Le Vaillant]

"bdju" <bdju@tilde.team> skribis:

> On Fri Mar 4, 2022 at 8:07 AM CST, Guillaume Le Vaillant wrote:
>> Hi,
>>
>> FreeCAD also has some issues with the rendering of its "start page"
>> where the text is missing.
>> And as Calibre and FreeCAD are apparently both Python applications using
>> QtWebEngine, it may indicate that there is something not working
>> correctly in QtWebEngine or in the Python bindings to QtWebEngine.
>
> qutebrowser and anki are also affected. There's an issue somewhere about
> it already.

Zhu Zihao found a workaround (see issue 54297): passing "--no-sandbox"
to Chromium.

So the text is rendered correctly when using:
--8<---------------cut here---------------start------------->8---
QTWEBENGINE_CHROMIUM_FLAGS="--no-sandbox" ebook-viewer
QTWEBENGINE_CHROMIUM_FLAGS="--no-sandbox" calibre
QTWEBENGINE_CHROMIUM_FLAGS="--no-sandbox" FreeCAD
--8<---------------cut here---------------end--------------->8---

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