Bug 509671

Summary:	The text-only appearance variant of System Monitor widgets is empty upon plasmashell start
Product:	[Plasma] plasmashell	Reporter:	fililip <team>
Component:	System Monitor widgets	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED FIXED
Severity:	normal	CC:	ahiemstra, akselmo, bugseforuns, kdedev, mmbossoni, nate, notmart, team
Priority:	NOR	Keywords:	regression
Version First Reported In:	6.4.90
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:	https://invent.kde.org/plasma/plasma-workspace/-/commit/3c0729397130ad1792798767bc225bd20190502e	Version Fixed In:	6.5.0
Sentry Crash Report:
Attachments:	Empty text only plasmoid

Description fililip 2025-09-19 09:33:13 UTC

SUMMARY
Text-only sensor widgets are empty after booting into the 6.5 beta. Toggling between another display mode and text-only brings it back again until a relog. Other appearance variants do not seem to trigger this behavior on relog, for instance the network usage one (graph with text) or the color grid.

STEPS TO REPRODUCE
1. Set up a text-only sensor widget with some sensor entries (like GPU VRAM or RAM usage)
2. Log out
3. Log back in

OBSERVED RESULT
The contents of the widget are gone while the title remains

EXPECTED RESULT
The contents of the widget remain visible

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.4.90
KDE Frameworks Version: 6.18.0
Qt Version: 6.10.0
Kernel Version: 6.16.7-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 20 × AMD Ryzen AI 9 365 w/ Radeon 880M
Memory: 32 GiB of RAM (27.2 GiB usable)
Graphics Processor: AMD Radeon 880M Graphics

Comment 1 Patrick Silva 2025-09-19 13:29:23 UTC

On my system all text-only sensors disappeared from System Monitor widgets placed on desktop after installing Plasma 6.5 beta and then rebooting.

Operating System: Arch Linux 
KDE Plasma Version: 6.4.90
KDE Frameworks Version: 6.18.0
Qt Version: 6.10.0
Graphics Platform: Wayland

Comment 2 Nate Graham 2025-09-19 18:29:14 UTC

I can't immediately reproduce this  on my KDE Linux system which is running git master.

Comment 3 Marcelo Bossoni 2025-09-21 11:23:56 UTC

Created attachment 185133 [details]
Empty text only plasmoid

Comment 4 Marcelo Bossoni 2025-09-21 11:24:36 UTC

Adding a me too here
Notice Arch uses Qt 6.10 beta as well on the kde beta/unstable branch, so maybe Qt related?

Comment 5 Akseli Lahtinen 2025-09-23 15:20:03 UTC

I can't reproduce this either

Operating System: Fedora Linux 42
KDE Plasma Version: 6.5.80
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2
Kernel Version: 6.16.7-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 3600 6-Core Processor
Memory: 16 GiB of RAM (15.5 GiB usable)
Graphics Processor: AMD Radeon RX 6600

However we have a somewhat related bug report when it comes to system monitors losing information, maybe it may help with this case as well: https://bugs.kde.org/show_bug.cgi?id=508184

Comment 6 Marco Martin 2025-09-24 11:13:30 UTC

this one as well appears fixed after
https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/5842