Created attachment 258280 [details] Screenshot Most splashes have no name, previewing does not work for those splashes, it seems impossible to select and apply a nameless splash. If it helps to understand this bug: after clicking the Defaults button, nothing is selected. grahamperrin:~ % uname -aKU FreeBSD mowa219-gjp4-zbook-freebsd 15.0-CURRENT FreeBSD 15.0-CURRENT main-n275770-6ba1c5abb957 GENERIC-NODEBUG amd64 1500034 1500034 grahamperrin:~ %
Created attachment 258283 [details] Screenshot: five named splashes, one of which is 'None' At least one of the named splashes _does_ work. Maybe I'm unlucky, with all the unnamed splashes not compatible with Plasma 6? In any case: I'd expect the Defaults button to work. Maybe there's an upstream bug for part of this.
Please try with clean KDE setup (you can use new account for testing). I doubt Plasma 5 and 6 are fully compatible when it concerns addons and extensions, so if you had installed extensions for Plasma 5 they are probably messing up with Plasma 6 now.
From bug 284986 comment 6: > With the fix: it's clearer that, for me, the Defaults button in > Login Screen (SDDM) is unreliable, … (In reply to Max Brazhnikov from comment #2) Thanks. I should add: a) I had problems with the Defaults button in at least one area of System Settings (probably two or more) long before the switch from 5 to 6, I probably never bothered to seek or make a FreeBSD or upstream bug report because 6 was on the horizon for FreeBSD ports b) no addon is outdated, according to Discover (there were difficulties with addon updates through Discover after I first switched to 6, it seems that things have improved) c) … right now I can't remember what the third thing was, sorry (I'm juggling multiple bugs at the moment). I might have a chat in the KDE Matrix server before anything else here.
(In reply to Graham Perrin from comment #3) Third-party splashes are not guaranteed to work. Discover won't find updates from Qt5 to Qt6, because they are different entities in the store. You need to remove old non-working extensions (probably manually) and install new versions. Breeze and Oxygen splashes are part of the Plasma distribution and should always work. Do they work for you?
I no longer use the affected system.
(In reply to Graham Perrin from comment #5) Do you mean that you don't use Plasma anymore, or don't a have this problem with the Plasma on the different system?