The system settings doesn't open

the system settings does not open after I have changed the style of the windows, is it possible to enter safe mode with the default theme settings? for me to change that. And I have another question, how do I open system settings from the terminal?

Welcome to the forum! :slight_smile:

Um, there is to the best of my knowledge no such thing as “safe mode” like you get in Microsoft Windows. GNU/Linux is an entirely different operating system. :man_shrugging:

nohup systemsettings5 > /dev/null 2>&1 &

sorry, i’m a beginner. I used the command on the terminal, but it didn’t open. I just changed the style of the apps in the application style option and this is happening. funny that all applications are working normally, except the system settings.

is there another way to change styles other than system settings?

Well, starting System Settings from the command line would normally produce output, but the command I gave you suppresses that. Try this instead…: :arrow_down:

systemsettings5

Not for window decorations, no. But since you haven’t told us what exactly you did, we also have no idea what you may have corrupted along the way. What you could eventually do is delete the following files ─ make a backup copy first…:

  • ~/.config/kwin*
  • ~/.local/share/kwin/scripts/*
  • ~/.cache/kwin/qmlcache/*

But that is all if your problem is with the window decorations. If it’s with another aspect of the theming, then we’re going to have to look elsewhere. :thinking:

I used systemsettings5 and that was the result, does it say anything?

theme “Numix-Circle” not found.
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/8x8/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/16x16/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/16x16/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/22x22/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/24x24/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/24x24/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/32x32/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/32x32/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/48x48/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/48x48/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/64x64/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/64x64/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/96x96/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/96x96/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/256x256/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/512x512/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/scalable/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/scalable/ui/”
Cyclic dependency detected between “file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml” and “file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml”
Icon theme “Numix-Circle” not found.
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/8x8/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/16x16/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/16x16/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/22x22/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/24x24/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/24x24/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/32x32/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/32x32/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/48x48/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/48x48/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/64x64/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/64x64/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/96x96/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/96x96/ui/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/256x256/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/512x512/legacy/”
Invalid Context= “Legacy” line for icon theme: “/usr/share/icons/Adwaita/scalable/legacy/”
Invalid Context= “UI” line for icon theme: “/usr/share/icons/Adwaita/scalable/ui/”
file:///usr/share/kpackage/genericqml/org.kde.systemsettings.sidebar/contents/ui/SubCategoryPage.qml:141:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo() { … }
file:///usr/share/kpackage/genericqml/org.kde.systemsettings.sidebar/contents/ui/SubCategoryPage.qml:131:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo() { … }
file:///usr/lib/qt/qml/org/kde/kirigami.2/private/RefreshableScrollView.qml:143:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo() { … }
file:///usr/lib/qt/qml/org/kde/kirigami.2/private/RefreshableScrollView.qml:143:13: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo() { … }
Cyclic dependency detected between “file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml” and “file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml”
QQmlEngine::setContextForObject(): Object already has a QQmlContext
qt.qpa.xcb: QXcbConnection: XCB error: 5 (BadAtom), sequence: 618, resource id: 0, major code: 20 (GetProperty), minor code: 0
Segmentation failure (core image recorded)

I think I’m going to reinstall the system, I already wanted to clean it up. Thank you for your help.

Got the same problem as this guy, i changed my window decoration in the customization section of the System Settings and now it doesn’t open, i’d like to know a way to fix this without needing to resort to reinstalling the system

This is what shows up when i run the systemsettings5 command

systemsettings5
Icon theme "Breeze-Noir-Black-Blue" not found.
Cyclic dependency detected between "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.pl
asma/Units.qml" and "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml"
Icon theme "Breeze-Noir-Black-Blue" not found.
file:///usr/share/kpackage/genericqml/org.kde.systemsettings.sidebar/contents/ui/SubCategoryPage.qml:14
1:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this synta
x instead: function onFoo(<arguments>) { ... }
file:///usr/share/kpackage/genericqml/org.kde.systemsettings.sidebar/contents/ui/SubCategoryPage.qml:13
1:9: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this synta
x instead: function onFoo(<arguments>) { ... }
file:///usr/lib/qt/qml/org/kde/kirigami.2/private/RefreshableScrollView.qml:143:13: QML Connections: Im
plicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFo
o(<arguments>) { ... }
file:///usr/lib/qt/qml/org/kde/kirigami.2/private/RefreshableScrollView.qml:143:13: QML Connections: Im
plicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFo
o(<arguments>) { ... }
Cyclic dependency detected between "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.pl
asma/Units.qml" and "file:///usr/lib/qt/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml"
QQmlEngine::setContextForObject(): Object already has a QQmlContext
qt.qpa.xcb: QXcbConnection: XCB error: 5 (BadAtom), sequence: 614, resource id: 0, major code: 20 (GetP
roperty), minor code: 0
Falha de segmentação (imagem do núcleo gravada)