Bug 376254 - Taskbar/transparency glitches with SDL2 programs running
Summary: Taskbar/transparency glitches with SDL2 programs running
Status: RESOLVED NOT A BUG
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: 5.9.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-02-09 21:04 UTC by zatherz
Modified: 2017-03-01 03:47 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:

Attachments
Normal taskbar - no SDL2 program running (21.51 KB, image/png)
2017-02-09 21:04 UTC, zatherz 		Details
Glitched taskbar with an SDL2 program running (20.70 KB, image/png)
2017-02-09 21:04 UTC, zatherz 		Details
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Description zatherz 2017-02-09 21:04:28 UTC 
Created attachment 103934 [details]
Normal taskbar - no SDL2 program running

When an SDL 2 program is running, the taskbar loses its transparency and a black square appears in the place of the start button (see
Comment 1 zatherz 2017-02-09 21:04:49 UTC 
Created attachment 103935 [details]
Glitched taskbar with an SDL2 program running
Comment 2 zatherz 2017-02-09 21:06:18 UTC 
Accidentally submitted bug report instead of saving attachment.

When an SDL 2 program is running, the taskbar loses its transparency and a black square appears in the place of the start button (see attachments). This does not happen with SDL 1 programs and can be reproduced by compiling windowtitle.cpp from https://github.com/crust/sdl2-examples with the 'g++ windowtitle.cpp -o windowtitle -lSDL2' command.
Comment 3 zatherz 2017-02-09 21:09:39 UTC 
Additionally, this does not happen with Openbox with the Compton compositor running (the taskbar retains its transparency and no black squares appear).
Comment 4 Martin Flöser 2017-02-10 06:47:37 UTC 
Please provide output of:
qdbus org.kde.KWin /KWin supportInformation
Comment 5 Christoph Feck 2017-02-17 22:47:21 UTC 
If you can provide the information requested in comment #4, please add it.
Comment 6 Christoph Feck 2017-02-23 02:02:31 UTC 
To further investigate this issue, KDE developers need the information requested in comment #4. If you can provide it, or need help with finding that information, please add a comment.
Comment 7 Christoph Feck 2017-03-01 03:47:22 UTC 
No response, closing.

If you have new information, please add a comment.