Bug 379580

Summary: Wallpaper slideshow displays two consecutive images at login.
Product: [Plasma] plasmashell Reporter: Paul <pip.kde>
Component: Image WallpaperAssignee: Marco Martin <notmart>
Status: RESOLVED FIXED    
Severity: normal CC: nate, notuxius, plasma-bugs
Priority: NOR    
Version: 5.9.5   
Target Milestone: 1.0   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed In:

Description Paul 2017-05-06 13:20:56 UTC
When using the wallpaper slideshow two consecutive images are shown at login.

The first image is shown for only a very brief period (blink and you'll miss it), the second image then correctly remains for the duration set by "Change every:", (which in this case is set to 1 hour, 0 minutes, 0 seconds).

The first image appears random, it is not for example the last displayed image.

This is consistent and repeatable.
Comment 1 Paul 2017-11-07 16:13:13 UTC
This appears to be fixed by the patch authored by "Vova Mshanetskiy" in relation to High CPU Utilisation by wallpaper slideshow. 

https://bugs.kde.org/show_bug.cgi?id=381000#c147
Comment 2 Christoph Feck 2017-11-24 00:40:59 UTC
But this patch has not yet been applied, right?
Comment 3 Paul 2017-11-24 12:07:30 UTC
It appears this patch doesn't fix the issue.  It "fixed" it for myself probably due to running on slow elderly hardware :)

See comments:
https://bugs.kde.org/show_bug.cgi?id=381000#c149
https://bugs.kde.org/show_bug.cgi?id=381000#c150
Comment 4 Alexander Mentyu 2018-02-06 18:14:35 UTC
Can reproduce in:

Plasma: 5.11.5
Apps: 17.12.1
Frameworks: 5.42.0
Qt: 5.10.0
Kernel: 4.14.16-1-MANJARO

The first image appears same at login - and then right after the first one - second image is random
Comment 5 Nate Graham 2019-11-14 00:48:23 UTC
Wallpaper processing was massively simplified and improved for 5.17. Can anyone who was originally experiencing this issue still reproduce it in Plasma 5.17?
Comment 6 Paul 2019-11-14 10:12:15 UTC
I've been using a static wallpaper image, but have now switched back to slideshow.

So far (although very limited testing) it seems OK.
Comment 7 Paul 2019-11-16 09:13:20 UTC
OK. I think it is safe to say this does indeed appear to be fixed. :)
Comment 8 Nate Graham 2019-11-16 16:01:10 UTC
Great!