Lost ability to configure Desktop both dispays after recent update

Tumbleweed
KDE

After a recent Tumbleweed update of 250+ files I have lost the ability to configure the Desktop settings on both displays. (Dual display set-up obviously.)

For example, I could previously set the Desktop wallpaper background on both displays. Now I can only do that on 1 display. The other display gets an un-changable black background and no response to right-mouse-click which should present a menu to change the display settings.

Try using the KDE Display and Monitor app to check/change the resolution of your display(s). If it is showing as correct, apply a different setting and then apply the correct setting. For me this survives until the next boot.

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Originally Posted by doscott

Try using the KDE Display and Monitor app to check/change the resolution of your display(s). If it is showing as correct, apply a different setting and then apply the correct setting. For me this survives until the next boot.

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Same behaviour here. Works but does not survive reboot.

Could be a QT bug

https://bbs.archlinux.org/viewtopic.php?id=258986

Same problem here :(
The QT bug link is here: https://bugreports.qt.io/browse/QTBUG-86604

As suggested on that bug, running

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plasmashell --replace

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fixes the problem (for me) until next reboot.

Cris