Bug 435498

Summary: Login KDE show overlapping login screens with multiple monitors.
Product: [Plasma] kwin Reporter: ssergio-ll <sergio>
Component: multi-screenAssignee: KWin default assignee <kwin-bugs-null>
Status: REPORTED ---    
Severity: normal CC: nate, plasma-bugs-null
Priority: NOR Keywords: multiscreen
Version First Reported In: 5.21.4   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Login KDE

Description ssergio-ll 2021-04-08 07:37:18 UTC
Created attachment 137425 [details]
Login KDE

SUMMARY

When i power my netbook and i go to login, it show overlapping login screens.

I have a notebook (MSI GS75-8SE) connect to a external monitor (LG 34GN850-B). I have disable monitor notebook and i only use external monitor. Once i login in, all work good, the external monitor is ok and my monitor notebook is off.

My card is Nvidia RTX2060 and my connection to monitor is by Thunderbolt.

MY SYSTEM

Linux/KDE Plasma: KDE Neon 20.04
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2

I attach a capture.
Comment 1 Nate Graham 2021-04-09 16:59:13 UTC
Seems like it could be an SDDM bug, but maybe a KWin issue too? Starting with KWin.