Dolphin loses UI settings when restarted

René J.V. Bertin rjvbertin at
Wed Jun 27 09:24:36 BST 2018

On Wednesday June 27 2018 08:57:58 Florian Lindner wrote:

>Only setting QT_QPA_PLATFORMTHEME=kde makes dolphin crash at the first startup (second try always works) and sends kmail
>into in infinite loop at start, I already tried that some time ago.

That's strange, and probably a bug. The plasma integration plugin does not have runtime dependencies on anything that is only available through an active Plasma5 desktop, to my knowledge. At least you shouldn't get a crash in dolphin. If you only get it once it may indicate that something required isn't yet running and is started automatically, but you still shouldn't get a crash. If DrKonqi appears and gives a useable backtrace you could file a bug report for this.

>Setting also KDE_FULL_SESSION=1 and KDE_SESSION_VERSION=5 makes it all work like a charm! Setttings are saved, file open
>dialoges are now really KDE and not some minmimalistic version and a number of other idiosyncrasies...

That is without setting QT_QPA_PLATFORMTHEME I presume?
In that case you get Qt's fallback internal implementation of the plasma-integration plugin, though I don't really understand how that can give you real KDE file dialogs.

>Is there some KDE wiki site that can be used to document that? Is the right place?

Presumably, or the forums. Cross your fingers though that this doesn't irk someone who feels that KDE look-and-feel should be exclusive to the Plasma desktop. I know there's at least 1 dev who already told me he planned to take down some comparable backdoor, "just because he could".


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