https://bugs.kde.org/show_bug.cgi?id=336089
--- Comment #45 from Cor Blom <corne...@solcon.nl> ---
(In reply to Thomas Lübking from comment #43)
> Resp. this one (the ARGB32 translucency handling is uncritical, it's applied
> to the preconverted image. This should be the single point of failure)
>
> diff --git a/kcms/kfontinst/lib/FcEngine.cpp
> b/kcms/kfontinst/lib/FcEngine.cpp
> index 19b7206..012a9d5 100644
> --- a/kcms/kfontinst/lib/FcEngine.cpp
> +++ b/kcms/kfontinst/lib/FcEngine.cpp
> @@ -537,7 +537,14 @@ QImage CFcEngine::Xft::toImage(int w, int h) const
> if (!xImage) {
> return QImage();
> }
> - return QImage(xImage->data, xImage->width, xImage->height,
> xImage->stride, QImage::Format_ARGB32_Premultiplied, &cleanupXImage, xImage);
> + QImage::Format format = QImage::Format_RGB32;
> + switch (DefaultDepth(QX11Info::display(), 0)) {
> + case 32: format = QImage::Format_ARGB32_Premultiplied; break;
> + case 16: format = QImage::Format_RGB16; break;
> + case 8: format = QImage::Format_Grayscale8; break;
> + default: break;
> + }
> + return QImage(xImage->data, xImage->width, xImage->height,
> xImage->stride, format, &cleanupXImage, xImage);
> }
>
> inline int point2Pixel(int point)
This patch solved the bug on openSUSE Leap 42.1 and nouveau (a NVD9 card)
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