Blank screen instead of monitor in kde5 kscreen settings window

[retrry]

I can't modify my kscreen configuration as I only see white space instead of my current monitors in kscreen settings.

I tried to run kscreen settings from command line:

$ kcmshell5 kcm_kscreen 
kf5.kservice.sycoca: ERROR: KSycoca database corruption!
kf5.kservice.sycoca: ERROR: KSycoca database corruption!
kf5.kservice.sycoca: ERROR: KSycoca database corruption!
kf5.kservice.sycoca: ERROR: KSycoca database corruption!
Recreating ksycoca file ("/home/user/.cache/ksycoca5_en_wraF0soOHIZSqb5ctlvumxL025k=", version 303)
Menu "applications-kmenuedit.menu" not found.
Saving
kf5.kservice.sycoca: ERROR: KSycoca database corruption!
LOAD
kscreen: Primary output changed from KScreen::Output(Id: 638 , Name: "DVI-I-0" ) ( "DVI-I-0" ) to KScreen::Output(Id: 638 , Name: "DVI-I-0" ) ( "DVI-I-0" )
kscreen: Primary output changed from KScreen::Output(Id: 638 , Name: "DVI-I-0" ) ( "DVI-I-0" ) to KScreen::Output(Id: 638 , Name: "DVI-I-0" ) ( "DVI-I-0" )
QQmlComponent: Component is not ready
"file:///run/current-system/sw/share/kcm_kscreen/qml/Output.qml:20 module \"QtGraphicalEffects\" is not installed\n"
Failed to create QMLOutput
QQmlComponent: Component is not ready
"file:///run/current-system/sw/share/kcm_kscreen/qml/Output.qml:20 module \"QtGraphicalEffects\" is not installed\n"
Failed to create QMLOutput
QQmlComponent: Component is not ready
"file:///run/current-system/sw/share/kcm_kscreen/qml/Output.qml:20 module \"QtGraphicalEffects\" is not installed\n"
Failed to create QMLOutput
QQmlComponent: Component is not ready
"file:///run/current-system/sw/share/kcm_kscreen/qml/Output.qml:20 module \"QtGraphicalEffects\" is not installed\n"
Failed to create QMLOutput
QQmlComponent: Component is not ready
"file:///run/current-system/sw/share/kcm_kscreen/qml/Output.qml:20 module \"QtGraphicalEffects\" is not installed\n"
Failed to create QMLOutput
QQmlComponent: Component is not ready
"file:///run/current-system/sw/share/kcm_kscreen/qml/Output.qml:20 module \"QtGraphicalEffects\" is not installed\n"
Failed to create QMLOutput

cc @ttuegel

[retrry]

I'm attaching a screenshot for better understanding:

[vcunat]

/cc @ttuegel who might know KDE5 best here.

[ttuegel]

This was fixed; maybe there was a regression when I updated KDE Frameworks recently. Are you using the unstable channel?

[retrry]

Are you talking about #11244? This is different from that one. In that one I got error that no kscreen backend is available, but there is no such error at this time.

I'm on unstable channel, but I think I experienced this on KDE Frameworks 5.17 too, but my configuration somehow was working and I ignored it. After today's update my configuration broke and I needed to modify kscreen configuration manually (in .local/share/kscreen). So kscreen actually is available and works. It just doesn't show monitors in settings.

[ttuegel]

OK, I'm on it. Looks like it's just a missing dependency.

[ttuegel]

Yup, just missing dependencies. Should be working in master.

[retrry]

It works. Thanks! :)