Bug 358244

Summary:	KDE Plasma 5.5.3 with dual monitor: one screen has no wallpaper but left black on login
Product:	[Plasma] plasmashell	Reporter:	Oliver Maurhart <dyle71>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED NOT A BUG
Severity:	minor	CC:	bshah, mcv, plasma-bugs-null
Priority:	NOR
Version First Reported In:	5.5.3
Target Milestone:	1.0
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Oliver Maurhart 2016-01-20 08:39:27 UTC

After manually disable/enable the screen in the Display Configuration the wallpaper reappears again. However, that's sort of pretty annoying everytime on login.

Reproducible: Always


Actual Results:  
No wallpaper on one of the screen.

Expected Results:  
Wallpaper should be present.

Comment 1 Thomas Lübking 2016-01-20 08:49:17 UTC

Not kwin related, it's either a bug in kscreen or plasmashell.
To know which: is it really the wallpaper or is there no desktop at all (is there a config button or can you rightclick the "no wallpaper" to get  a config menu)?

Comment 2 Oliver Maurhart 2016-01-20 09:38:02 UTC

Well, after login the screen is black. But I can open up a window and drag it onto the black screen. There it is visible and fine.

So, everything is fine, except the wallpaper is missing on the screen.

When I disable/enable the screen in the Display Configuration then the wallpaper reappears.

BUT: when I change the wallpaper in the Desktop Settings, only the Wallpaper of the "good" screen changes. I can't change the Wallpaper of the (once) black screen.

Comment 3 Thomas Lübking 2016-01-20 09:43:12 UTC

Please inform the plasmashell devs whether there's no desktop window or just no wallpaper.
Rightclick the "no wallpaper" area and check whether a popup shows up.

Comment 4 Oliver Maurhart 2016-01-20 12:26:11 UTC

Interesting ... after some experiments and changes I don't recall, the plasmashell works on logout/login/reboot as before.

Strange. Well... I set this report to resolved/invalid then.
Sorry for the noise.

Comment 5 Michał 2016-04-01 19:13:54 UTC

I have similar issue, but the wallpaper disappears after some time. The screen gets blank. i'll have to check whether the black background reacts to mouse clicks.