Bug 218406

Summary:	Empty window after resizing PDF image embedded in Konqueror tab
Product:	[Applications] okular	Reporter:	Andrey Borzenkov <arvidjaar>
Component:	general	Assignee:	Okular developers <okular-devel>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	aacid, jensmh, jordonwii, Martin.vGagern, mpartap
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Okular with too large zoom

Description Andrey Borzenkov 2009-12-12 18:27:22 UTC

Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

KDE 4.3.80/Qt 4.6.0 as shipped by Mandriva

Konqueror is set to open links in new tab instead of new window. I was viewing http://www.vor.at/tickets/wochenkarten/ and clicked on the last link on this page (Tarifzonenplan - http://www.vor.at/fileadmin/user_upload/downloads/News/11.2009/TZP_20_10_09_lr.pdf). It opened in new tab. I clicked several times on + to enlarge content. After that I got empty window.

I think I already hit this several times in the past.

Comment 1 Albert Astals Cid 2009-12-14 23:31:18 UTC

Can you attach a screenshot? I'm not sure i understand your problem.

Comment 2 Andrey Borzenkov 2009-12-15 18:28:04 UTC

Created attachment 39073 [details]
Okular with too large zoom

Sure; here you are. If I try to zoom too much I get no content at all. I have waited couple of minutes; I do not believe it is *that* slow.

It does not apparently depend on being embedded. I get the same effect if I just view document (PDF) with okular directly and zoom too much.

When I decrease zoom at some point content appears again.

Comment 3 Albert Astals Cid 2009-12-17 00:22:21 UTC

Do you have Desktop Effects enabled? Does disabling them help?

Comment 4 jensmh 2009-12-17 01:10:16 UTC

I did the test with current trunk (svn rev 1063065).
Disabling desktop effects did not help.

messages from okular:

konqueror(29441)/okular (app) Okular::Document::requestPixmaps: request id=3 4878x4927@0
konqueror(29441)/okular (app) Okular::DocumentPrivate::sendGeneratorRequest: Running out of memory on page 0 (4878x4927 px);
konqueror(29441)/okular (app) Okular::DocumentPrivate::sendGeneratorRequest: this message will be reported only once.
konqueror(29441)/okular (app) Okular::Document::requestPixmaps: request id=3 4878x4927@0

Comment 5 Marcel Partap 2010-11-08 20:11:44 UTC

Yeah, this has been annoying me since ages, however this is the first time i paid attention to the output and did some research. Example output:
okular(1391)/okular (app) Okular::DocumentPrivate::sendGeneratorRequest: Running out of memory on page 0 (7168x10096 px);
It seems okular is trying to reserve a full sized image for each zoomlevel.. zooming in and out, memory size grows and shrinks again, but it is sometimes peaking out and subsequent zooming in will return that message. Guess the render logic would have to be altered quite a bit to solve this problem by rendering and allocating only parts of the document or so?

Comment 6 Albert Astals Cid 2010-11-08 20:41:20 UTC

Are you willing to work on a patch?

Comment 7 Marcel Partap 2010-11-08 20:49:07 UTC

Got me ^^
Sorry to say: No, nO0o way. Way beyond my abilities, and far down on my priorities. If i was the coding wiz that i am not, probably. Pardon me ;)

Comment 8 Martin von Gagern 2011-05-24 13:09:41 UTC

Possibly a duplicate of bug #185676.

Comment 9 jordonwii 2012-01-05 04:43:40 UTC

Agree with #8. Is this bug a dup of 173681? They both appear to be stemming from the memory issue.

Comment 10 Albert Astals Cid 2012-01-05 10:43:52 UTC


*** This bug has been marked as a duplicate of bug 185676 ***