Bug 401152

Summary: In multi monitor configuration PC start with screen OFF
Product: [Plasma] KScreen Reporter: Marcus <biowep>
Component: commonAssignee: Sebastian Kügler <sebas>
Status: RESOLVED FIXED    
Severity: normal    
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Screen configuration

Description Marcus 2018-11-17 23:16:54 UTC
Created attachment 116376 [details]
Screen configuration

I have the PC connected to a Samsung TV through an audio amplifier. Usually I do not use the TV so it is disabled in monitor settings (attachment: SAMSUNG). My monitor (attachment: VE248) is set as the main screen.

OBSERVED RESULT
When the computer starts it start with the screen ON: I can see the mouse on a dark background and it moves correctly. In a few seconds it turns OFF, no matter I move the mouse or randomly press on keyboard, it stays OFF.

The turn my monitor ON I have to power ON the amplifier, then it turns ON. After that I can turn the amplifier OFF again, everything keeps working as expected.

EXPECTED RESULT
The screen should stay ON independently on the amplifier when it is enabled in Screen settings.

SOFTWARE/OS VERSIONS
OS: Kubuntu 18.10
KDE Plasma Version: 5.14.3
KDE Frameworks Version: 5.52.0
Qt Version: 5.11.1

ADDITIONAL INFORMATION
PC is connected from an AMD GPU through HDMI to the monitor.
PC is connected from the integrated Intel HDMI output to a Yamaha audio amplifier (5.1 Home cinema) which is connected through HDMI to a Samsung TV.