Hello ;=)

I have something strange on my desktop wallpaper , i'm using pictures that change at session start and recently the picture became fuzzy on both edges of the screen :



I'm wondering if it could be coming from Plasma (software) , or is it the graphics card that playing me tricks (hardware) ?
Have you seen something like this before ?
Here what i'm using : plasma 5.11.95, frameworks 5.42.0, qt 5.10.0 , with opensuse Leap 42.3.

Thanks for you help

With the Plasma 5.12:

- Wallpaper blur background filling effect feature: https://phabricator.kde.org/D7047
- Wallpaper: hide color or blur filling options for full filling mode: https://phabricator.kde.org/D8441



Release announcement - Plasma 5.12 LTS Beta: https://www.kde.org/announcements/plasma-5.11.95.php
Known issues: https://community.kde.org/Plasma/5.12_Errata

Thanks a lot for this answer