[okular] [Bug 390971] Delayed content rendering during scrolling on a hidpi screen

[Éric Brunet]

https://bugs.kde.org/show_bug.cgi?id=390971

Éric Brunet <eric.brunet at lps.ens.fr> changed:

           What    |Removed                     |Added
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                 CC|                            |eric.brunet at lps.ens.fr

--- Comment #7 from Éric Brunet <eric.brunet at lps.ens.fr> ---
I have, I think, the same problem on my new computer (Dell XPS 13, Fedora 30,
okular 18.12.2, poppler 0.73.0)

The computer has a resolution 3840x2160 and Screen Scale is set at 2.5. Like
Eugene, I notice that it mostly happen with large windows. Okular even seems to
give up at some points and doesn't render parts of the page till I move again.

I have also put a file on
(this is the file pgfmanual.pdf in package texlive-pgf-doc)
look how rendering is flickering and how page 7 doesn't appear till I go up and
down again.

The computer is brand new, everything is going very smoothly with evince, so I
don't think the problem is a lack of CPU or RAM.

It works much better with Screen Scale set at 1.

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