Bug 332746

Summary:	pdf documents not shown: page size = inf
Product:	[Applications] okular	Reporter:	Luis Silva <lacsilva>
Component:	PDF backend	Assignee:	Okular developers <okular-devel>
Status:	RESOLVED FIXED
Severity:	normal	CC:	aacid
Priority:	NOR
Version:	0.18.95
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:	http://commits.kde.org/okular/a7f3a1ac37af94af5078051ceb5b310fb93194ed	Version Fixed In:	4.13.0
Attachments:	Screenshot illustrating the problem. Output of "kscreen-console bug"

Description Luis Silva 2014-03-28 18:16:42 UTC

Okular does not show pdf documents anymore. All other types of document are shown correctly.
When launched from a terminal in debug mode I have the following informations:

okular(20856): BEGIN: Loading backend
This backend is only for XRandR 1.1, your version is:  1 . 4 
okular(20856)   BackendLoader::init: Skipping "XRandR 1.1" backend
okular(20856)   BackendLoader::init: Loading "XRandR" backend
okular(20856): END__: Loading backend [Took: 0.038s]
okular(20856) Okular::Utils::realDpi: Found widget at output # 83
okular(20856) Okular::Utils::realDpi: Output DPI is  QSizeF(inf, inf)

followed by several lines like:
okular(20856)/okular (app) Okular::Document::requestPixmaps: request observer=0x29d62e8 832x-2147483648@0



Reproducible: Always

Steps to Reproduce:
1. Open a pdf document.
2.
3.
Actual Results:  
The document is not displayed and the status bar shows the size to be a NaN. I attach a screenshot illustarting the problem.

Comment 1 Luis Silva 2014-03-28 18:17:28 UTC

Created attachment 85814 [details]
Screenshot illustrating the problem.

Comment 2 Albert Astals Cid 2014-03-30 23:59:40 UTC

Do you know how to recompile okular? Would you able to compile it adding 
kDebug() << "Output size is " << szMM;
after the line
QSize szMM = selectedOutput->sizeMm();
in core/utils.cpp ?

Comment 3 Luis Silva 2014-04-01 01:59:50 UTC

I just recompiled master () which has the patch you asked me to apply. Here is the output on the command line:

okular(14783): BEGIN: Loading backend
This backend is only for XRandR 1.1, your version is:  1 . 4 
okular(14783)   BackendLoader::init: Skipping "XRandR 1.1" backend
okular(14783)   BackendLoader::init: Loading "XRandR" backend
okular(14783): END__: Loading backend [Took: 0.038s]
okular(14783) Okular::Utils::realDpi: Found widget at output # 83
okular(14783) Okular::Utils::realDpi: Output size is  QSize(0, 0)
okular(14783) Okular::Utils::realDpi: Output DPI is  QSizeF(inf, inf)

Comment 4 Luis Silva 2014-04-01 02:01:35 UTC

I'm compiling from master (8ee72f).

Comment 5 Albert Astals Cid 2014-04-01 07:44:20 UTC

Thanks this is useful :)

Comment 6 Albert Astals Cid 2014-04-01 23:33:52 UTC

One more thing, can you please run
kscreen-console bug
on a terminal and attach the output?

Comment 7 Luis Silva 2014-04-02 02:14:43 UTC

Created attachment 85895 [details]
Output of "kscreen-console bug"

Comment 8 Luis Silva 2014-04-02 02:17:47 UTC

I just added the output you requested.
Something else that might help and that I had not noticed before: the file preview widget in kile (okular based) is working perfectly fine. The document preview in kbibtex (also okular based), however, simply does not work.
I hope this information helps.

Comment 9 Albert Astals Cid 2014-04-02 22:43:46 UTC

Git commit a7f3a1ac37af94af5078051ceb5b310fb93194ed by Albert Astals Cid.
Committed on 02/04/2014 at 22:42.
Pushed by aacid into branch 'KDE/4.13'.

Protect us against broken drivers/screens

Some drivers screens return 0x0 as their screen size so we can't use it
to calculate the dpi
Related: bug 332494
FIXED-IN: 4.13.0

M  +17   -9    core/utils.cpp

http://commits.kde.org/okular/a7f3a1ac37af94af5078051ceb5b310fb93194ed