Wednesday 22 September 2021

How to stop KDE Plasma and other QT Apps from Spamming your System Log

 I noticed a lot of spam in /var/log/messages on Fedora 34 KDE.

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"

Those lines were repeated over and over again.

I finally found a workaround for it.

Add this line to /etc/environment

QT_LOGGING_RULES='*=false'

And reboot.

No more log spam.

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