Bug 220093 - Incorrect text appear when scrolling on MS Windows
Summary: Incorrect text appear when scrolling on MS Windows
Status: RESOLVED NOT A BUG
Alias: None
Product: kate
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: KWrite Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-12-25 21:25 UTC by Arseny Klimovsky
Modified: 2010-05-15 18:00 UTC (History)
2 users (show)

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Description Arseny Klimovsky 2009-12-25 21:25:01 UTC 
Version:            (using KDE 4.3.3)
OS:                MS Windows
Installed from:    MS Windows

On Windows XP 64-bit (this can be useful, I can't reproduce the bug on Windows XP 32-bit via Remote Desktop), on some rather big text files (usual size is 10-100 Mb).
When scrolling (using mouse wheel or scroll bar), sometimes instead on next text, old text appear several times. Everything get OK, if press on this area. Also no problem when pressing PgUp/PgDown buttons.
Example in pseudographics:

Original screen
---------------
| 111         |
| 2222        |
| 33          |
| 444         |
---------------
Scrolling 3 lines
---------------
| 33          |
| 444         |
| 444         |
| 444         |
---------------
Pressing mouse on the last line
---------------
| 33          |
| 444         |
| 55          |
| 6666        |
---------------
Comment 1 Christoph Cullmann 2010-05-15 18:00:16 UTC 
Please retry with KDE 4.4.
In any case, we can't fix that in kate, we don't do any special stuff during painting. If the error still occurs, this is likely a qt problem :/