Bug 350958

Summary:	okular fails to re-render when zooming into complex pdf files
Product:	[Applications] okular	Reporter:	Nico Kruber <nico.kruber>
Component:	PDF backend	Assignee:	Okular developers <okular-devel>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	aacid
Priority:	NOR
Version First Reported In:	0.21.3
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	file which does not re-render when zooming into it

Description Nico Kruber 2015-08-04 11:57:24 UTC

In several more complex and huge page dimension pdf files, okular fails to re-render contents of the screen if I zoom in or move the shown area when zoomed in. New (previously invisible) areas stay white; zoomed-in areas have a bad resolution. Refreshing the view with F5 renders the areas correctly

Reproducible: Always

Steps to Reproduce:
1. open the pdf file (attached in comment 1)
2. zoom in, e.g. with CTRL+mouse wheel, to 400%
3. see that the image does not get rendered with a higher resolution
4. refresh (F5) -> it renders correctly
5. scroll horizontally to the right until a white area is shown and wait
6. this area is not re-freshed until hitting F5 ourselves

Comment 1 Nico Kruber 2015-08-04 11:58:00 UTC

Created attachment 93884 [details]
file which does not re-render when zooming into it

Comment 2 Albert Astals Cid 2015-08-06 22:16:57 UTC

This works fine for me on Okular shipped with KDE Applications 15.08 Release Candidate (aka 0.22.90) please reopen if you update to it or a newer version and you still have this issue.