https://bugs.kde.org/show_bug.cgi?id=483534

bugs_kde_...@ck.waw.pl changed:

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--- Comment #3 from bugs_kde_...@ck.waw.pl ---
(In reply to Jakob Hellermann from comment #1)
> AS a workaround you can set the environment variable
> QT_IMAGEIO_MAXALLOC=8192 as described in
> https://doc.qt.io/qt-6/qimagereader.html#setAllocationLimit

I can confirm. It's works for heic files, but when I am trying to open 4k/60Hz
movie, gwenview crashing.

QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setOpacity: Painter not active
QPainter::end: Painter not active, aborted


When you using fish shell, use it to open gwenview. After that, high resolution
images should be opened without problems.
env "QT_IMAGEIO_MAXALLOC= 8128" gwenview

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