Bug 444602

Summary:	LyX menu stops opening after a while
Product:	[Plasma] plasmashell	Reporter:	phrxmd <philipp.reichmuth>
Component:	Global Menu widget	Assignee:	Kai Uwe Broulik <kde>
Status:	RESOLVED WAITINGFORINFO
Severity:	normal	CC:	cornelis, mvourlakos, nate, plasma-bugs-null
Priority:	NOR
Version First Reported In:	5.23.1
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:	6.1
Sentry Crash Report:

Description phrxmd 2021-10-29 12:12:10 UTC

SUMMARY
I use the Global Menu applet and am seeing problems with LyX (version 2.3.6.1), which is a document processing program that uses Qt for its UI. Upon launching LyX, the menu works fine. However, after working in LyX for a while, the menu stops working, submenus cease to appear.

STEPS TO REPRODUCE
1. Start LyX.
2. Work in LyX for a while, opening/closing menus and so on.

OBSERVED RESULT
After a while, menus stop opening: the top-level menu item in the manu bar is highlighted, but no submenu opens.

EXPECTED RESULT
Submenus should open every time.

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20211027
KDE Plasma Version: 5.23.1
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.14.14-1-default (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620

LyX version 2.3.6.1 from the OpenSUSE repositories.

ADDITIONAL INFORMATION
I've reported this on the LyX bugtracker: https://lyx.org/trac/ticket/12415
The developer there says that LyX is generating the menus on the fly when you enter the top-level menu, it's their way of adjusting the changing menu contents. The developer uses global menus with Unity and says it took them a while to get right back at the time (4-5 years ago). It may be an issue between the way KDE displays the menu and the way LyX generates them, but for me it's a bit hard to track down.

There were some issues with this with KDE in the past (#399975); this issue is different because it only appears after a while.

Comment 1 phrxmd 2023-10-17 06:43:28 UTC

Is there a way to get debug information from KDE for the global menu? 
The problem persists and the LyX devs are asking for it (https://www.lyx.org/trac/ticket/12415#comment:4).

Comment 2 Nate Graham 2024-08-20 16:34:31 UTC

Sorry we were not able to get to this yet. Are you still able to reproduce the issue in Plasma 6.1.4 or later?

Comment 3 Cor Blom 2024-08-22 18:24:04 UTC

(In reply to Nate Graham from comment #2)
> Sorry we were not able to get to this yet. Are you still able to reproduce
> the issue in Plasma 6.1.4 or later?

I saw this bug also in the past. Now with 6.1.4 on wayland I see that the dynamic menus take more time to form with a global menu than without, but apart from that, it works as expected for me.

Comment 4 Nate Graham 2024-08-22 18:35:46 UTC

OK great!