I recently installed Arch Linux with KDE. When I try to log in from the lock screen, I only see a black screen with a mouse cursor. Initially, I noticed I could choose between X11 and Wayland on the login screen. Switching to X11 resolved the issue temporarily. However, after a few reboots, I encountered the black screen again. This time, the lock screen doesn’t appear, and I no longer have the option to choose between X11 and Wayland. I did not experience this problem with GNOME, but I prefer KDE’s look and feel.
Do you have an NVIDIA GPU? > However, after a few reboots, I encountered the black screen again Were you still using the X11 session when this started happening?
(In reply to Nate Graham from comment #1) > Do you have an NVIDIA GPU? > > > However, after a few reboots, I encountered the black screen again > Were you still using the X11 session when this started happening? I have an Nvidia GPU and yes I was still using the X11 session when it started happening again
*** This bug has been marked as a duplicate of bug 487580 ***