https://bugs.kde.org/show_bug.cgi?id=357377
--- Comment #1 from Markus <darkvis...@gmx.eu> --- I have similar issues with Plasma 5.6.5 and with latest 5.7.0 using Slackware64 14.2 and Frameworks 5.24/Plasma compiled from source. Using QT 5.6.1r1. I do not have multiple activities, but sometimes after starting Plasma i do not see my widgets, i have to use META+TAB to switch between activities. The Sidebar then shows only one Activity but after release META+TAB key all widgets do appear on screen. After i have installed Plasma i tried to add different widgets to the desktop. I did run into the same issues as the OP: Sometimes the widgets simply disappeared when i tried to move them on the screen. After using META+TAB key to switch between my one and only Activity the widgets were back. I locked my widgets. If i unlock the widgets and want to add a new widget the sidebar with the list of widgets appears on the left and all my widgets on the desktop disappear. Using META+TAB will bring them back but would be nice to find a fix for that. At any time, with no applications open. If i want to switch between activities all widgets disappear and will come back if i switch activities again. I checked in system settings that i really do have only one activity and the list shows only one entry. .xsession-errors shows some messages, not sure if they are related to the issue when widgets disappear: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24009, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24156, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24178, resource id: 0, major code: 14 (GetGeometry), minor code: 0 file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null QQmlComponent: Component is not ready QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24945, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24946, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24947, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24949, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24951, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24952, resource id: 0, major code: 14 (GetGeometry), minor code: 0 file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Base/ButtonStyle.qml:150:31: QML Item: Binding loop detected for property "implicitWidth" file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Base/ButtonStyle.qml:150:31: QML Item: Binding loop detected for property "implicitWidth" file:///usr/lib64/qt5/qml/QtQuick/Controls/Styles/Base/ButtonStyle.qml:150:31: QML Item: Binding loop detected for property "implicitWidth" QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25477, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25488, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25520, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25532, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25533, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25534, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25536, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25537, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25538, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25539, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25546, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25556, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 25567, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26835, resource id: 37748920, major code: 19 (DeleteProperty), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26845, resource id: 37748920, major code: 19 (DeleteProperty), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26846, resource id: 37748920, major code: 18 (ChangeProperty), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26847, resource id: 37748920, major code: 19 (DeleteProperty), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26848, resource id: 37748920, major code: 19 (DeleteProperty), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26849, resource id: 37748920, major code: 19 (DeleteProperty), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26850, resource id: 37748920, major code: 7 (ReparentWindow), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26851, resource id: 37748920, major code: 6 (ChangeSaveSet), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26852, resource id: 37748920, major code: 2 (ChangeWindowAttributes), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 26853, resource id: 37748920, major code: 10 (UnmapWindow), minor code: 0 file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/explorer/WidgetExplorer.qml:262:9: QML ToolButton: Cannot anchor to an item that isn't a parent or sibling. QXcbWindow: Unhandled client message: "_NET_SHOWING_DESKTOP" QXcbWindow: Unhandled client message: "_NET_SHOWING_DESKTOP" TODO: port listCategories() file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:160: TypeError: Cannot read property 'showingDialog' of null QXcbConnection: XCB error: 9 (BadDrawable), sequence: 27367, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 27368, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 27369, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 27370, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 27371, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 27373, resource id: 0, major code: 14 (GetGeometry), minor code: 0 file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null QXcbWindow: Unhandled client message: "_NET_SHOWING_DESKTOP" QXcbWindow: Unhandled client message: "_NET_SHOWING_DESKTOP" file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/activitymanager/Heading.qml:55:5: QML RowLayout: Binding loop detected for property "height" file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/activitymanager/Heading.qml:55:5: QML RowLayout: Binding loop detected for property "height" QXcbConnection: XCB error: 9 (BadDrawable), sequence: 29413, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 29414, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 29415, resource id: 0, major code: 14 (GetGeometry), minor code: 0 file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:166: Unable to assign [undefined] to bool QXcbConnection: XCB error: 9 (BadDrawable), sequence: 29416, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 29417, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 29419, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 29611, resource id: 0, major code: 14 (GetGeometry), minor code: 0 file:///usr/lib64/qt5/qml/QtQuick/Controls/Button.qml:96: TypeError: Cannot read property of null file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:160: TypeError: Cannot read property 'showingDialog' of null file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:160: TypeError: Cannot read property 'showingDialog' of null QXcbConnection: XCB error: 9 (BadDrawable), sequence: 30603, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 30604, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 30605, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 30607, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 30609, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 30610, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31198, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31199, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31209, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31219, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31250, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31251, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31252, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31254, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31255, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31256, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31257, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31264, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31265, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31266, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31268, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31269, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31270, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31271, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31293, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31294, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31304, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31381, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31382, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31383, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31385, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31386, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31387, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 31388, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 3 (BadWindow), sequence: 32172, resource id: 37748931, major code: 15 (QueryTree), minor code: 0 QXcbWindow: Unhandled client message: "_NET_CURRENT_DESKTOP" QXcbWindow: Unhandled client message: "_NET_CURRENT_DESKTOP" -- You are receiving this mail because: You are watching all bug changes.
