Bug 418994 - Content disappears while zooming in PDFs
Summary: Content disappears while zooming in PDFs
Status: RESOLVED DUPLICATE of bug 423360
Alias: None
Product: okular
Classification: Applications
Component: general (show other bugs)
Version: 1.9.3
Platform: Manjaro Linux
: NOR minor
Target Milestone: ---
Assignee: Okular developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-03-18 17:54 UTC by jan.claussen10
Modified: 2020-12-27 14:58 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:

Attachments
Zooming Bug GIF (1.47 MB, image/gif)
2020-03-18 23:15 UTC, jan.claussen10 		Details
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Description jan.claussen10 2020-03-18 17:54:56 UTC 
The content disappears while zooming in PDFs resulting in a white screen flashing up. This is not really a severe bug, but really annoying.
Comment 1 Albert Astals Cid 2020-03-18 21:04:31 UTC 
Could you please record a video/gif and upload it so we can see what you mean?
Comment 2 jan.claussen10 2020-03-18 23:15:59 UTC 
Created attachment 126879 [details]
Zooming Bug GIF
Comment 3 jan.claussen10 2020-03-18 23:32:14 UTC 
I have uploaded a screencast. Unfortunately there is more flickering than I am actually seeing. For me just the content of the PDF become white. In the video all the windows and the panel flicker, which is not a problem at all. This must be an issue of the screencast software. I have tried with Kazam and recordmydesktop. They both have this problem.
Comment 4 Albert Astals Cid 2020-03-19 21:21:38 UTC 
Is that a hidpi screen?
Comment 5 jan.claussen10 2020-03-20 10:54:45 UTC 
No it is a normal 1080p laptop screen
Comment 6 Albert Astals Cid 2020-03-21 00:01:18 UTC 
Ok, needs investigating.
Comment 7 Laura David Hurka 2020-03-21 19:38:22 UTC 
I don’t have the problem with Okular from git master.

But I think with “hidpi screen” Albert meant whether you use GUI scaling. (System Settings -> Display and Monitor -> Display Configuration -> Global scale slider) I use 125% scaling on my 1080p screen.
Comment 8 jan.claussen10 2020-03-22 06:19:14 UTC 
I am on 100%
Comment 9 jan.claussen10 2020-03-22 06:28:26 UTC 
I also have the problem with 125%. Maybe it is my hardware. I have a Thinkpad X380 Yoga and an Intel UHD 620.
Comment 10 Laura David Hurka 2020-12-27 14:58:27 UTC 
I think this is the issue which I described in bug 423360. If you observed this problem only while zooming, and not while scrolling at the high zoom level, please change this back to REPORTED.

Thanks modelmat, for subscribing to both bugs, so I see the link. :)

*** This bug has been marked as a duplicate of bug 423360 ***