Bug 464750

Summary:	Notifications: Share data and settings with a global singleton
Product:	[Plasma] plasmashell	Reporter:	PRIZ ;] <danielpetrov>
Component:	Notifications	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	CONFIRMED ---
Severity:	task	CC:	austin0198, grymas, kde, kde, latufara, luca.brian, nate
Priority:	NOR
Version:	5.26.5
Target Milestone:	1.0
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Bug Depends on:
Bug Blocks:	469085, 485383
Attachments:	Notifications should be listed, and there are notifications as indicated by the white 'clear' button No notifications Shrink to bell Notifications reappear

Description PRIZ ;] 2023-01-24 17:18:56 UTC

Created attachment 155562 [details]
Notifications should be listed, and there are notifications as indicated by the white 'clear' button

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
When putting the notification widget on the desktop (not the system tray icon), no notifications show up

STEPS TO REPRODUCE
1. Place the notification widget on the desktop
2. Resize it such that it shows notifications or says "No unread notifications"
3. Clear all notifications
4. Receive a notification

OBSERVED RESULT
No notifications are displayed, but the 'clear all' button does respond correctly

EXPECTED RESULT
Notifications should be listed like the one shown by clicking the system tray icon

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.19.0-24-generic; Kubuntu 22.10
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.6
Graphics Platform: X11

ADDITIONAL INFORMATION
Kubuntu Backports PPA for Impish and Jammy

Comment 1 Nate Graham 2023-01-24 20:55:35 UTC

Do you also have another Notifications widget active in your System Tray, or on another screen?

Comment 2 PRIZ ;] 2023-01-24 21:07:16 UTC

Yes, I have a notifications widget on the system tray.

However, this issue is recent (within a couple months), this setup did work previously.

Comment 3 Latufara 2023-02-19 09:00:31 UTC

Same here: since Plasma 5.26 the notification history is no longer shown in the widget. I use it in a sidebar and I have no other notifications widget active in system tray. As reported by PRIZ ;] only the button to clean notifications works (it gets brighter after a notification)

Comment 4 Nate Graham 2023-02-21 18:44:09 UTC

Probably a case of the history model being per-widget rather than global, and this doesn't work when you have multiple widgets. Similar to Bug 443036 and Bug 423625.

Comment 5 Latufara 2023-02-22 09:17:10 UTC

If I resize the widget (first small until it shows only the bell, then I enlarge it) the notifications appear, after clear all, the widget stops working again.

Comment 6 Latufara 2023-02-22 09:36:54 UTC

Created attachment 156597 [details]
No notifications

Comment 7 Latufara 2023-02-22 09:37:50 UTC

Created attachment 156598 [details]
Shrink to bell

Comment 8 Latufara 2023-02-22 09:39:01 UTC

Created attachment 156599 [details]
Notifications reappear

Comment 9 Nate Graham 2023-04-28 03:30:28 UTC

*** Bug 466647 has been marked as a duplicate of this bug. ***

Comment 10 Grymas 2024-03-09 16:23:47 UTC

I have the same bug, notification widget seems to work until emptied then never refreshes/updates when new notifications arrive. If I resize it (to the bell and back) or recreate it, the notifications show up.

Kubuntu 23.10
KDE Plasma 5.27.8
Frameworks 5.111.0
Qt 5.15.10
Kernel 6.5.0-25-generic (64 bit)
X11

Comment 11 Luca Brian 2024-10-18 09:29:47 UTC

I have the same problem on a fresh install:

KDE Neon 6.2
KDE Plasma 6.2.1
KDE Framework 6.7.0
Qt 6.7.2
Kernel Version 6.8.0-47-generic
Wayland