https://bugs.kde.org/show_bug.cgi?id=357377
--- Comment #1 from Markus ---
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
