Bug 341945 - Wrong rendering with scrolling in PDF
Summary: Wrong rendering with scrolling in PDF
Status: RESOLVED WORKSFORME
Alias: None
Product: okular
Classification: Applications
Component: PDF backend (show other bugs)
Version: 0.19.3
Platform: MacPorts macOS
: NOR normal
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-12-16 14:49 UTC by Nicolas Pavillon
Modified: 2023-02-17 03:48 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Screenshot showing rendering issue (709.95 KB, image/png)
2015-01-08 02:24 UTC, Nicolas Pavillon
Details

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Description Nicolas Pavillon 2014-12-16 14:49:26 UTC
When scrolling down in a pdf document, streaks appear in the document, as if the page was not refreshed properly. 

The issue was originally reported in https://trac.macports.org/ticket/45910, where a screen capture of the issue is also given. 

I noticed that the rendering problem can be corrected by unzooming/zooming, pointing to a refreshing problem. 

It also seems that the problem specially occurs when using scrolling with the trackpad, but not with an external mouse.

This was primarily tested with version 0.19.3 (KDE 4.13.3), but the problem is also present in KDE 4.14.3 according to my tests.

Reproducible: Always

Steps to Reproduce:
1. Open PDF document
2. Scroll down with trackpad


Actual Results:  
Streaks appear in the document


Expected Results:  
The pdf should render properly
Comment 1 Albert Astals Cid 2014-12-17 00:10:10 UTC
Attach a screenshot
Comment 2 Christoph Feck 2015-01-08 01:59:09 UTC
If you can provide the information requested in comment #1, please add it.
Comment 3 Nicolas Pavillon 2015-01-08 02:24:40 UTC
Created attachment 90282 [details]
Screenshot showing rendering issue
Comment 4 Albert Astals Cid 2015-01-08 21:55:37 UTC
You'll have to find someone with a mac to have a look.
Comment 5 Andrew Crouthamel 2018-11-18 03:02:32 UTC
Devs, is this supported anymore? I'm having a hard time finding a Mac download.
Comment 6 Andrew Crouthamel 2018-11-21 04:36:51 UTC
I'm going to mark this unmaintained. Please reopen if I am mistaken on Mac support.
Comment 7 Luigi Toscano 2018-11-21 09:28:03 UTC
Hard time to find != unmaintained; it just needs some attention from people working on the Mac port.
Comment 8 Andrew Crouthamel 2018-11-21 13:13:43 UTC
Right. Which is what I asked about, since I cannot find any way to use Okular on a Mac. Is it, or is it not being worked on any more? It would be nice if my question was answered instead.
Comment 9 Nicolas Pavillon 2018-11-21 15:27:07 UTC
There are package managers on Mac that allow the install of KDE software; I personally use Macports. Then, 3-4 years later, the issue is less relevant as Okular on KDE4 is quite outdated. I do not know the behaviour on KF5.
Comment 10 Justin Zobel 2023-01-18 02:40:52 UTC
Thank you for reporting this issue in KDE software. As it has been a while since this issue was reported, can we please ask you to see if you can reproduce the issue with a recent software version?

If you can reproduce the issue, please change the status to "REPORTED" when replying. Thank you!
Comment 11 Bug Janitor Service 2023-02-02 05:01:13 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 12 Bug Janitor Service 2023-02-17 03:48:51 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!