STEPS TO REPRODUCE 1. Open System Settings 2. Open menu in top teft corner - it's visible 3. Close it. 4. Open menu in top teft corner again - now it isn't (it opens with size of ~1px) SOFTWARE VERSIONS (available in About System) KDE Plasma Version: 5.14.1 KDE Frameworks Version: 5.51 Qt Version: 5.12-beta2 ADDITIONAL INFORMATION The same thing happens in SDDM with select-session-menu.
Same thing on my system. Operating System: Arch Linux KDE Plasma Version: 5.14.1 Qt Version: 5.12.0 beta2 KDE Frameworks Version: 5.51.0
Can confirm. I get this on stderr: file:///usr/lib64/qt5/qml/QtQuick/Controls/Private/MenuContentItem.qml:239: TypeError: Cannot read property 'submenuPopupDelay' of null file:///usr/lib64/qt5/qml/QtQuick/Controls/Private/MenuContentItem.qml:239: TypeError: Cannot read property 'submenuPopupDelay' of null file:///usr/lib64/qt5/qml/QtQuick/Controls/Private/MenuContentItem.qml:239: TypeError: Cannot read property 'submenuPopupDelay' of null file:///usr/lib64/qt5/qml/QtQuick/Controls/Private/MenuContentItem.qml:239: TypeError: Cannot read property 'submenuPopupDelay' of null
Reproduced in a minimal testcase and reported upstream as https://bugreports.qt.io/browse/QTBUG-71238
Still happens with Qt5.12-beta4
And still an issue in Qt 5.12 RC1...
(In reply to Rainer Finke from comment #5) > And still an issue in Qt 5.12 RC1... There's a comment on the fix: > Let's finally freeze the release content and keep this as a known issue in .0 > release. We will release .1 release soon (at the beginning of 2019) so there > isn't that much time to wait it. And it is important to get the .0 out now. So > please re-target this in '5.12' instead I guess it's up to distros to patch that.
*** Bug 401409 has been marked as a duplicate of this bug. ***
It seems the fix made it for the QT 5.12 release
*** Bug 401110 has been marked as a duplicate of this bug. ***