Bug 349591 - wallpaper rendered in poor quality
Summary: wallpaper rendered in poor quality
Status: RESOLVED DUPLICATE of bug 338506
Alias: None
Product: plasmashell
Classification: Plasma
Component: Desktop Containment (show other bugs)
Version: 5.3.1
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: Sebastian Kügler
Depends on:
Reported: 2015-06-25 11:12 UTC by Martin Kyral
Modified: 2015-06-25 13:18 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:

screenshot #1 (1.78 MB, image/png)
2015-06-25 11:13 UTC, Martin Kyral
screenshot #2 (1.85 MB, image/png)
2015-06-25 11:13 UTC, Martin Kyral
broken Tiled positioning (1.78 MB, image/png)
2015-06-25 11:23 UTC, Martin Kyral
broken Centered positioning (1.99 MB, image/png)
2015-06-25 11:26 UTC, Martin Kyral

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Description Martin Kyral 2015-06-25 11:12:24 UTC
In plasmashell I noticed very poor quality of displaying the wallpaper images. They seem like being very aggresively jpeg-compressed - blurry, lacking details, sometimes artifacted.

See the attached screenshots with the very same image shown as desktop wallpaper and gwenview at ~ the same scale.

Reproducible: Always

Actual Results:  
The wallpaper looks ugly

Expected Results:  
The wallpaper looks like it should
Comment 1 Martin Kyral 2015-06-25 11:13:01 UTC
Created attachment 93329 [details]
screenshot #1
Comment 2 Martin Kyral 2015-06-25 11:13:30 UTC
Created attachment 93330 [details]
screenshot #2
Comment 3 Martin Kyral 2015-06-25 11:22:29 UTC
The desktop image size exceeds the screen resolution and the positioning is 'Scaled & Cropped'. I never noticed such degradation of the image quality in plasma from KDE 4, not other DE's.

Positioning: Centered and Tiled don't work at all (see the additional screenshots)
Comment 4 Martin Kyral 2015-06-25 11:23:25 UTC
Created attachment 93331 [details]
broken Tiled positioning
Comment 5 Martin Kyral 2015-06-25 11:26:24 UTC
Created attachment 93332 [details]
broken Centered positioning
Comment 6 Bhushan Shah 2015-06-25 13:18:53 UTC

*** This bug has been marked as a duplicate of bug 338506 ***