Bug 334881 - Okular blink my screen
Summary: Okular blink my screen
Status: RESOLVED NOT A BUG
Alias: None
Product: okular
Classification: Applications
Component: general (show other bugs)
Version: 0.19.0
Platform: Kubuntu Linux
: NOR grave
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-05-16 14:15 UTC by Michel
Modified: 2014-07-16 15:00 UTC (History)
3 users (show)

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Description Michel 2014-05-16 14:15:16 UTC 
Hi, 
here my distribution: 
more /etc/lsb-release 
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.4 LTS"

I'm using 2 screens with KDE13.0. When I open a PDF or other  document with OKULAR my screens are blinking and my CPU is going UP (50%).
If type okular in Konsole, nothing happen. Okular is open and my screens are not blinking 

Thanks for you support.
Comment 1 Albert Astals Cid 2014-05-20 21:10:16 UTC 
What do you mean by blink? Can you record a video of it with your phone or something?
Comment 2 Michel 2014-05-21 09:25:19 UTC 
Thks Albert
blinking I mean black flash like a  twinkle with hight CPU using. That 's impacting Xorg  I believe.
 How to sent the video ?
Comment 3 Albert Astals Cid 2014-05-23 18:09:10 UTC 
Record a video with your phone, upload it to youtube. Or any of the other million ways the internet has given us to share videos.
Comment 4 Michel 2014-07-02 13:50:07 UTC 
Here the video : 
https://www.youtube.com/watch?v=fef2ZzKmMV4

That's very strange because it's working since two week until I launched Okular. Now I can not have double screen any more. I reboot twince my PC. 
When I configured the second screen, the process Xorg is growing up to 30% of the CPU and the screen is blinking as you can watch.

Thank for your help and support.
Comment 5 Michel 2014-07-02 14:29:37 UTC 
These both commands fixed my problem :

qdbus org.kde.kded /kded org.kde.kded.unloadModule kscreen
qdbus org.kde.kded /kded org.kde.kded.setModuleAutoloading kscreen false

Should I un-install kscreen?
Comment 6 Albert Astals Cid 2014-07-10 22:18:16 UTC 
I am confused, where is okular in that video?
Comment 7 Michel 2014-07-11 08:30:56 UTC 
Hello Albert, 

OK When I launch OKULAR, I've got the same event.
When I launch acrobat reader I've no problem
Thanks for your support/
Comment 8 Albert Astals Cid 2014-07-14 20:56:35 UTC 
If you get this blinking behaviour without okular, this is not an okular bug.

Please open a bug against kscreen since you seem to have isolated the fact that it is the thing that is making your screen blink.
Comment 9 Ion Mihov 2014-07-16 14:48:38 UTC 
Hi, a have the same problem with okular  :
ubuntu version -

 Distributor ID: Ubuntu
Description:    Ubuntu 14.04 LTS
Release:        14.04
Codename:       trusty

Okular
Version 0.19.2
KDE 4.13.2

this is video http://youtu.be/P7KUtVCMqRQ of blinking
Comment 10 Michel 2014-07-16 14:58:24 UTC 
I asume tha
Comment 11 Michel 2014-07-16 15:00:08 UTC 
I assume that okular is impacted in this bug. 

I did a an update this morning. 
The problem is gone I don't know how.

PB closed so......