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postix changed:
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Nikola Kocic changed:
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--- Comment #12 from Yiyang Wu ---
Confirm that this issue still exists on my Debian 12 Plasma-5.27 laptop. Is
there any progress these days?
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Yiyang Wu changed:
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--- Comment #11 from Oliver Sander ---
> Why is devicePixelRatio here forced to be 1...?
That part of the code was reworked in a recent merge request. Maybe it'll help
you:
https://invent.kde.org/graphics/okular/-/merge_requests/371
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--- Comment #10 from Filzmaier Josef ---
Created a MR: https://invent.kde.org/graphics/okular/-/merge_requests/458
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Albert Astals Cid changed:
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--- Comment #9 from Albert As
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
QScreen::
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 "po
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Oliver Sander changed:
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--- Comment #6 from
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David Hurka changed:
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Version|unspecified |21.04.3
Component|PDF backend
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 mas
https://bugs.kde.org/show_bug.cgi?id=409644
--- Comment #3 from David Hurka ---
Does it happen only with PDF?
Or only if there is e. g. a stamp annotation? Or do you use the Change Colors
feature? Have some text selections active?
Which Okular version do you use? Simone reported this for 19.04.
https://bugs.kde.org/show_bug.cgi?id=409644
Nate Graham changed:
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Ever confirmed|0 |1
Status|REPORTED
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--- 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 better
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Simone changed:
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See Also||https://bugs.kde.org/show_b
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https://bugs.kde.org/show_bug.cgi?id=409644
Simone changed:
What|Removed |Added
Summary|[Wayland] Panning is laggy |[Wayland] Panning in Okular
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