Bug 497490

Summary:	After some time the icons disappear from system tray on i3
Product:	[Frameworks and Libraries] frameworks-kstatusnotifieritem	Reporter:	Juraj <jurajoravec>
Component:	general	Assignee:	Alexander Lohnau <alexander.lohnau>
Status:	RESOLVED INTENTIONAL
Severity:	normal	CC:	nate
Priority:	NOR
Version First Reported In:	6.8.0
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Juraj 2024-12-15 09:50:58 UTC

SUMMARY
The computer "runs" for a long time over many days with suspending to memory and waking up daily.
After system starts from cold boot the icons for KMail and KWalletManager are shown in the i3bar notification area (legacyIcon).
The icons are present for multiple days and multiple suspend/sleep cycles until they disappear.


STEPS TO REPRODUCE
1. Use i3bar to provide legacy notification area
2. Run it for a long time, maybe with suspend-resume
3. Wait and observe

OBSERVED RESULT
One day, the tray icons disappears and will not appear until other reboot (I did not try to logout - login).
After the conditions for tray disappearing icons are met, no new KMail or KWalletManager icons are shown, even if programs are restarted.

EXPECTED RESULT
Icons are still show in the notification are like any other.

SOFTWARE/OS VERSIONS
Operating System: Artix Linux 
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.1
Kernel Version: 6.12.3-artix1-1 (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 5700X 8-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: AMD Radeon RX 570 Series

ADDITIONAL INFORMATION
This is happening for a long time already.

Comment 1 Nate Graham 2024-12-16 19:20:14 UTC

Can I ask how you reached the conclusion that frameworks-kstatusnotifieritem is at fault here, as opposed to i3's tray implementation?

Comment 2 Juraj 2024-12-16 21:02:31 UTC

> Can I ask how you reached the conclusion that frameworks-kstatusnotifieritem is at fault here, as opposed to i3's tray implementation?

You are right, I blindly assumed that since only KDE programs (KMail and KWalôletManager) disappear and Transmission-qt shows the icon all Qt stuff will show it just fine as well and KDE ones will not..
That does not seems to be the case since the systray qt example[1] also does not show the icon.

So I believe that this is either i3bar or Qt issue.

Thank you for pointing this out.
Best regards,

[1]: https://doc.qt.io/qt-6/qtwidgets-desktop-systray-example.html

Comment 3 Nate Graham 2024-12-16 21:16:04 UTC

You're welcome!

Comment 4 Juraj 2025-12-03 08:59:11 UTC

When my i3 desktop start, there is no kded6 running, after some time something starts it (I use multiple programs from KDE).
I do not know which program is requesting kded6 to start, yet.

kded6 acts as dbus master for "org.kde.StatusNotifierWatcher" which is missing a path (reported by Kmail)

> QDBusTrayIcon encountered a D-Bus error: QDBusError("org.freedesktop.DBus.Error.UnknownObject", "No such object path '/StatusNotifierWatcher'")

So, this is truly a bug or feature in KDE software and not in my beloved i3.

So it short when my i3 start there is no master for "org.kde.StatusNotifierWatcher" and thus service is not provided, kde programs use normal tray.
When there is a dbus master for "org.kde.StatusNotifierWatcher" than kde program use this interface to request a tray icon or widget or whatever you call it.

best regards,
Juraj