https://bugs.kde.org/show_bug.cgi?id=488941

            Bug ID: 488941
           Summary: Plasma 6.1 Screen turn off on login into a Wayland
                    session
    Classification: Plasma
           Product: kwin
           Version: 6.1.0
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: wayland-generic
          Assignee: kwin-bugs-n...@kde.org
          Reporter: ale...@nicolas.org
  Target Milestone: ---

SUMMARY

After upgrading to Plasma 6.1.0, upon login with SDDM onto a Wayland session
the screen turn black after showing "No Signal" and I can't even switch to a
terminal. On Plasma 6.0.5, I was able to login on Wayland just fine. 

I tested GNOME Wayland and I can login into a session just fine.

I'm using the Nvidia 555.52.04 driver. I reported the issue to them initially
(https://forums.developer.nvidia.com/t/nvidia-555-52-04-plasma-6-1-wayland-screen-turn-off-on-login/297197)
but I know think it might be a KDE Plasma issue.

STEPS TO REPRODUCE
1. Start the computer
2. Login into a Plasma Wayland session using SDDM

OBSERVED RESULT
The screen display the "No Signal" warning and turns off

EXPECTED RESULT
KDE Plasma loads normally into the desktop

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
Kernel Version: 6.9.5-zen1-1-zen (64-bit)
Graphics Platform: X11
Processors: 6 × Intel® Core™ i5-8600K CPU @ 3.60GHz
Memory: 15.5 Gio of RAM
Graphics Processor: NVIDIA GeForce RTX 4060/PCIe/SSE2
Screen: ASUS XG27AQ connected via DisplayPort

ADDITIONAL INFORMATION
With "journalctl -b -1 -p3" I get:

juin 22 01:19:16 galeanthrope-mini kernel: x86/cpu: SGX disabled by BIOS.
juin 22 01:19:16 galeanthrope-mini kernel: 
juin 22 01:19:21 galeanthrope-mini (udev-worker)[373]: sdb:
/etc/udev/rules.d/60-schedulers.rules:6 Failed to write
ATTR{/sys/devices/pci0000:00/0000:00:01.1/0000:02:00.0/0000:03:02.0/0000:05:00.0/usb5/5-1/5-1:1.0/host6/target6:0:0/6:0:0:0/block/sdb/queue/scheduler}="cfq",
ignoring: Invalid argument
juin 22 01:19:21 galeanthrope-mini /usr/bin/nvidia-powerd[763]: Found
unsupported configuration. Exiting...
juin 22 01:19:35 galeanthrope-mini sddm-helper[1160]: gkr-pam: unable to locate
daemon control file
juin 22 01:19:36 galeanthrope-mini disable-paste[1229]: *** err
juin 22 01:19:36 galeanthrope-mini disable-paste[1229]: /dev/tty1: Permission
denied
juin 22 01:19:36 galeanthrope-mini disable-paste[1229]: *** err
juin 22 01:19:36 galeanthrope-mini disable-paste[1229]: Oh, oh, it's an error!
possibly I die!
juin 22 01:19:38 galeanthrope-mini kwin_wayland[1250]: kwin_scene_opengl:
Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
juin 22 01:19:38 galeanthrope-mini kwin_wayland[1250]: kwin_scene_opengl:
Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
juin 22 01:19:38 galeanthrope-mini kwin_wayland[1250]: kwin_scene_opengl:
Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
juin 22 01:19:38 galeanthrope-mini kwin_wayland[1250]: kwin_scene_opengl:
Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
juin 22 01:19:38 galeanthrope-mini kwin_wayland[1250]: kwin_scene_opengl:
Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
... (and multiple other identical lines)

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