https://bugs.kde.org/show_bug.cgi?id=409644
Filzmaier Josef changed:
What|Removed |Added
CC||j.filzma...@gmx.at
--
You are receiving
https://bugs.kde.org/show_bug.cgi?id=409644
--- Comment #1 from Filzmaier Josef ---
I can reproduce this issue on my lenovo thinkpad x1 carbon gen9.
I do have a 4k screen and scrolling pages within this document is almost
unusably slow.
Opening the PDF in Firefox (wayland enabled) has way
https://bugs.kde.org/show_bug.cgi?id=409644
--- Comment #4 from Filzmaier Josef ---
It does not seem to be dependent on the file format / generator.
I have tested with pdf, txt and epub, and tiff - all have laggy scrolling.
I am using Okular 21.04.3 but can also reproduce it with the current
https://bugs.kde.org/show_bug.cgi?id=409644
--- Comment #7 from Filzmaier Josef ---
@Oliver Sander
I can confirm that the problem is related to display scaling. If i change the
display scale to 100% the performance is as expected, even if the resolution is
at 4k and the cpu_governor is set to
https://bugs.kde.org/show_bug.cgi?id=409644
--- Comment #8 from Filzmaier Josef ---
I couldn't yet find a solution to the probelm, a few questions though:
https://invent.kde.org/graphics/okular/-/blob/master/core/document.cpp#L1519
Why is devicePixelRatio here forced to be 1 instead of
QS
https://bugs.kde.org/show_bug.cgi?id=409644
--- Comment #10 from Filzmaier Josef ---
Created a MR: https://invent.kde.org/graphics/okular/-/merge_requests/458
--
You are receiving this mail because:
You are the assignee for the bug.
