I’m using EndeavourOS with KDE.
The display is correctly oriented when logged in but it doesn’t rotate correctly when I’m logged out.
EDIT: corrected the post. This happens when logged out, locking the screen has it displayed correctly.
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Yes. I would assume that the problem is in X11 or Wayland before thinking it could be SDDM, frankly. But even then, googling "Linux login screen" doesn't immediately reveal SDDM to be the point of concern.
I'm not moving any goalposts at all. I'm expressing how inexperience and bad assumptions can make one's searching unfruitful through no fault of their own. That's all I've ever been saying.
Ah, you made an edit. Yeah, "kde login rotation" does, but "EndeavourOS login rotation" gives you no results mentioning SDDM. Giving people the benefit of the doubt costs you nothing over assuming that they're lazy, and the added bonus is that you don't sound like a jerk.