Bug 370434

Summary:	Multi screen support broken in Plasma 5.8.0
Product:	[Plasma] plasmashell	Reporter:	johan.claudebreuninger
Component:	generic-multiscreen	Assignee:	Aleix Pol <aleixpol>
Status:	RESOLVED DUPLICATE
Severity:	major	CC:	andrius, barisdemirdelen, bhush94, daniel, johan.claudebreuninger, kde, notmart, plasma-bugs, tromzy
Priority:	NOR
Version:	5.8.0
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	plasmashellrc plasma-org.kde.plasma.desktop-appletsrc plasmashellrc plasma-org.kde.plasma.desktop-appletsrc plasmashellrc appletsrc

Description johan.claudebreuninger 2016-10-10 23:56:49 UTC

While multi screen support has always been complicated on Plasma 5, with the 5.7.x releases it more or less worked.

After updating to Plasma 5.8.0 the multi screen support is completely broken. After every restart, logout, lid closing or removing of a screen, all configurations are lost and the standard desktop configuration is applied to the screens.



Reproducible: Always

Steps to Reproduce:
1. Unlocking/Restarting/Disconnecting Screen/Closing lid
2. Unlocking session
3. All parameters are lost + taskbar behaviour is unpredictable and mostly completely disappears.

Actual Results:  
The screen configuration is lost and I'm presented the standard desktop, with standard wallpaper, etc. 

The taskbar is randomly jumping from one screen to an other without any clear pattern.

Expected Results:  
Widgets, desktop wallpaper and all parameters should be remembered.

Please let me know what information you need to investigate.

Comment 1 Bhushan Shah 2016-10-11 03:13:49 UTC

Can you please post ~/.config/plasmashellrc and ~/.config/plasma-org.kde.plasma.desktop-appletsrc ?

Comment 2 Daniel Melin 2016-10-11 08:14:14 UTC

I can confirm this on Maui Linux. After upgrade to 5.8 I have no taskbar and default desktop.

Comment 3 Bhushan Shah 2016-10-11 08:20:58 UTC

@Daniel, can you post the files mentioned in Comment #1?

Comment 4 Daniel Melin 2016-10-11 08:36:03 UTC

Created attachment 101519 [details]
plasmashellrc

Comment 5 Daniel Melin 2016-10-11 08:36:39 UTC

Created attachment 101520 [details]
plasma-org.kde.plasma.desktop-appletsrc

Comment 6 johan.claudebreuninger 2016-10-11 09:48:07 UTC

Created attachment 101522 [details]
plasmashellrc

Comment 7 johan.claudebreuninger 2016-10-11 09:48:31 UTC

Created attachment 101523 [details]
plasma-org.kde.plasma.desktop-appletsrc

Comment 8 johan.claudebreuninger 2016-10-11 19:22:12 UTC

This bug seems related I think:

https://bugs.kde.org/show_bug.cgi?id=369665

Comment 9 Daniel Melin 2016-10-13 12:41:26 UTC

Added all updates to Maui Linux as of today. Dual monitor still doesn't work. Have tried laptop without external monitor attached and that works perfectly.

Comment 10 Marco Martin 2016-10-18 09:08:35 UTC

this should be fixed in 5.8.2 (as i'm pretty sure is a duplicate of #369665) should be tested again with updated packages and eventually closed

Comment 11 johan.claudebreuninger 2016-10-19 11:44:37 UTC

This bug is still present in 5.8.2

Comment 12 Daniel Melin 2016-10-25 08:04:03 UTC

Updated to Plasma 5.8.2 and everything else today. No difference regarding this bug. No Kicker, no taskbar, default wallpaper on both screens.

Comment 13 Andrius Štikonas 2016-11-02 14:44:12 UTC

Created attachment 101964 [details]
plasmashellrc

Comment 14 Andrius Štikonas 2016-11-02 14:45:07 UTC

Created attachment 101965 [details]
appletsrc

Comment 15 barisdemirdelen 2016-11-02 20:17:32 UTC

Plasma 5.8.3, problem persists.

Comment 16 tromzy 2016-11-07 08:53:04 UTC

I can confirm this. I installed Plasma 5.8.3 (Arch linux) this weekend on a computer's friend with a dual monitor setup and on every start of the Plasma session, the dual monitor configuration is messed up. Sometimes the screen are inverted (wallpapers and widgets on the other monitor), sometimes it's only the secondary monitor's configuration that gets reset. Typing "killall plasmashell && plasmashell" sometimes fixes it, but most of the time it does not.

Comment 17 tromzy 2016-11-07 09:01:24 UTC

Some information complement : my friend's computer uses a Radeon card with the free radeon driver (Radeon HD 7750, xf86-video-ati)

Comment 18 johan.claudebreuninger 2016-11-08 12:17:15 UTC

Still present in 5.8.3 and even worth: the external monitor stays black. Windows can be moved to this second screen but no right clic is working.

If I try to close the lid of my laptop, the taskbar disappears, the screen goes black and everything crashes and I have to restart.

Comment 19 Janek Bevendorff 2016-11-18 11:51:36 UTC


*** This bug has been marked as a duplicate of bug 371734 ***