[Bug 237277] www/qt5-webengine: HTML5 video rendering/play color problem

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237277

--- Comment #8 from Lorenzo Salvadore <phascolarctos at protonmail.ch> ---
I think this is not a real bug, but a misconfiguration with hardware
acceleration, as comment #6 and comment #7 also suggest.

If you have a recent enough hardware, you should try to get hardware
acceleration working properly. This page, although for arch linux, can help:
https://wiki.archlinux.org/index.php/Hardware_video_acceleration

If, on the contrary, you have an old graphic card, such as myself, you can
disable hardware acceleration by starting your browser with --disable-gpu. I
can confirm that this fixes the problem with falkon 3.1.0 and qt5-webengine
5.12.2_3 on FreeBSD 12.0-RELEASE r350836 amd64.

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