https://bugs.kde.org/show_bug.cgi?id=390971
Bug ID: 390971
Summary: Delayed content rendering during scrolling on a hidpi
screen
Product: okular
Version: 1.3.2
Platform: Manjaro
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: PDF backend
Assignee: okular-de...@kde.org
Reporter: bertyf...@gmail.com
Target Milestone: ---
When slowly scrolling through a yet uncached pdf the content of the next page
is rendered (or displayed) with a significant delay.
I've recorded a video to better illustrate the problem
https://streamable.com/ynpjz
System settings: Screen Scale set to 2
Okular settings: View mode: Single page, Continuous; Memory usage: Greedy
Some additional observations:
- noticeable only on a hidpi screen
- better noticeable when the okular window is more wide; barely noticeable when
the window is tall; not noticeable when the View mode is set to Facing Pages;
- happens on every Memory Usage setting
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