Bug 394837

Summary:	KDE menu (start button) refuses to show any menu
Product:	[Plasma] plasmashell	Reporter:	John Andersen <jsamyth>
Component:	Application Launcher (Kickoff) widget	Assignee:	David Edmundson <kde>
Status:	RESOLVED DUPLICATE
Severity:	major	CC:	aska990, bugseforuns, edpil02, plasma-bugs
Priority:	NOR
Version:	5.12.5
Target Milestone:	1.0
Platform:	Manjaro
OS:	Linux
URL:	https://forum.manjaro.org/t/kde-menu-wont-pop-up/48138/12
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description John Andersen 2018-05-29 19:34:26 UTC

The KDE "start button", (K Button) usually found at the Left of the Panel, can cease to function (will not pop up the menu) if you: 
1) accidentally drag some arbitrary distance while clicking the menu button, or 
2) switch desktops with the menu open.

Occurs with the menu alternatives: Application Menu, Application Launcher 

How to reproduce: (easiest way)
Select either App-menu or App-launcher menu alternative.
Click K button (start button) menu appears
Switch desktop via pager (while menu still showing)
Click K button again, and menu will no longer show, but K button becomes underlined briefly

How to restore Menu functionality:
Any of these methods will restore Menu functionality to the K button
1) Right click the K-button and choose a different Menu Alternative.
2) killall plasmashell && plasmashell  (in krunner or a shell)
3) Logout.

Found using Manjaro Stable packages
KDE Plasma Version 5.12.5
KDE Frameworks Version 5.46.0
QT Version 5.10.1
Kernel 4.14.44-1 (Manjaro) x86-64.

Can not reproduce with OpenSuse Leap 15
KDE Plasma Version 5.12.5
KDE Frameworks Version 5.45.0  <------<<< ?
QT Version 5.9.4
Kernel 4.12.14-4 (Opensus Leap 15) x86-64.

Comment 1 noname 2018-05-30 12:14:38 UTC

Same issue with Fedora rawhide (plasma-5.12.90 qt5.11 frameworks 5.46).
Kickoff crashes when click on categories.

Message from journalctl:
file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/KickoffItem.qml:211:19: Unable to assign [undefined] to QString

Other stuff seems ok (favorites,history ..)
I ll try a build from plasma-desktop git.

Comment 2 noname 2018-05-30 13:01:11 UTC

Rebuilding plasma-desktop from git solves the issue.

Comment 3 aska990 2018-06-08 03:39:42 UTC

Same issue on Archlinux.

KDE Plasma 5.12.5
KDE Frameworks 5.46.0
Qt 5.11.0
Kernel : 4.16.12-1-ARCH x86_64

I also had the same bug happen for widgets in the system tray area : none of them could pop up menus, however the application laucher was still working fine. Cannot repreoduce this version of the bug, though.

Comment 4 aska990 2018-06-12 02:38:18 UTC

Seems to be fixed with :

KDE Plasma 5.12.5
KDE Frameworks 5.47.0
Qt 5.11.0
Kernel : 4.16.13-2-ARCH

Comment 5 Patrick Silva 2018-06-14 18:02:38 UTC


*** This bug has been marked as a duplicate of bug 381242 ***