Bug 442847 - plasmashell spams system log with "kf.config.core: "\"NaturalSize_1\" - conversion of \"-1,-1\" to QSizeF failed" multiple times a minute
Summary: plasmashell spams system log with "kf.config.core: "\"NaturalSize_1\" - conve...
Status: RESOLVED FIXED
Alias: None
Product: plasmashell
Classification: Plasma
Component: general (show other bugs)
Version: 5.22.5
Platform: Other Other
: NOR normal
Target Milestone: 1.0
Assignee: David Edmundson
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-09-23 15:48 UTC by p d
Modified: 2023-04-27 22:09 UTC (History)
3 users (show)

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Description p d 2021-09-23 15:48:40 UTC 
SUMMARY

In Fedora 34 KDE wayland I have an issue where plasmashell spams systemd-journald and /var/log/messages several times a minute with this error message:

Sep 22 23:28:11 fedora-t580 plasmashell[82570]: kf.config.core: "\"NaturalSize_1\" - conversion of \"-1,-1\" to QSizeF failed"
Sep 22 23:28:11 fedora-t580 plasmashell[82570]: kf.config.core: "\"NaturalSize_1\" - conversion of \"-1,-1\" to QSizeF failed"
Sep 22 23:28:11 fedora-t580 plasmashell[82570]: kf.config.core: "\"NaturalSize_1\" - conversion of \"-1,-1\" to QSizeF failed"
Sep 22 23:28:26 fedora-t580 plasmashell[82570]: kf.config.core: "\"NaturalSize_1\" - conversion of \"-1,-1\" to QSizeF failed"
Sep 22 23:28:26 fedora-t580 plasmashell[82570]: kf.config.core: "\"NaturalSize_1\" - conversion of \"-1,-1\" to QSizeF failed"

The only workaround I found is to disable debug logging of Qt applications entirely via adding this to /etc/environment

QT_LOGGING_RULES='*=false'

STEPS TO REPRODUCE
1. Look in /var/log/messages
2. See log spam

OBSERVED RESULT

The message is displayed multiple times a minute and I have to disable Qt logging.

EXPECTED RESULT

There to be no log spam.

SOFTWARE/OS VERSIONS

Operating System: Fedora 34
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.2
Kernel Version: 5.13.19-200.fc34.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-7300U CPU @ 2.60GHz
Memory: 7.6 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 620

ADDITIONAL INFORMATION
Comment 1 Nate Graham 2023-04-27 22:09:05 UTC 
This was fixed a while ago.