Not able to take screenshots with KDE Plasma 5.20.80

Damir Porobic damir_porobic at
Wed Oct 14 20:22:40 BST 2020


one of my users informed me that he's not able to take screenshots with KDE Plasma Wayland anymore. I've just tested myself, with Plasma 5.19.5 everything is working, with Plasma 5.20.80, it's not. My application supports two ways of taking screenshots under KDE Plasma, one is using "org.kde.kwin.Screenshot" like Spectacle and the other is using "org.freedesktop.portal.Screenshot". Interesting is that both stopped working with 5.20.80 but Spectacle seems to be able to take screenshot still. My imageGrabber that uses "org.kde.kwin.Screenshot" is basically a copy of Spectacles imageGrabber, so I'm wondering why it works for Spectacle and not for my application.

Looking at the dbus-monitor sessions, I've notices an error saying:
error_name=org.kde.kwin.Screenshot.Error.NoAuthorized reply_serial=32 string "The process is not authorized to take a screenshot"

That's something new. How can a process be authorized to take screenshots?

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