Tumbelweed with Nvidia driver 560.35.03 - Wayland login loop

English Hardware
1

I just updated the Nvidia driver from the proprietary 550.100 to the open driver 560.35.03 using the run file (NVIDIA-Linux-x86_64-560.35.03.run).
My initial setup was:

inxi -G
Graphics:
  Device-1: NVIDIA GA104GL [RTX A4000] driver: nvidia v: 550.100
  Display: wayland server: X.org v: 1.21.1.12 with: Xwayland v: 24.1.2
    compositor: kwin_wayland driver: X: loaded: nvidia
    unloaded: fbdev,modesetting,vesa gpu: nvidia resolution: 5120x1440
  API: EGL v: 1.5 drivers: nvidia,swrast,zink
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 550.100
    renderer: NVIDIA RTX A4000/PCIe/SSE2
  API: Vulkan v: 1.3.290 drivers: N/A surfaces: xcb,xlib,wayland

and the setup after the driver upgrade is:

inxi -G
Graphics:
  Device-1: NVIDIA GA104GL [RTX A4000] driver: nvidia v: 560.35.03
  Display: x11 server: X.Org v: 21.1.12 with: Xwayland v: 24.1.2 driver: X:
    loaded: nvidia unloaded: fbdev,modesetting,vesa gpu: nvidia
    resolution: 5120x1440~120Hz
  API: EGL v: 1.5 drivers: kms_swrast,nvidia,swrast
    platforms: gbm,x11,surfaceless,device
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 560.35.03
    renderer: NVIDIA RTX A4000/PCIe/SSE2
  API: Vulkan v: 1.3.290 drivers: N/A surfaces: xcb,xlib

Everything is working fine in X11 but I cannot log into a Wayland session, as it loops back to the login screen.

Any pointer as to how to troubleshoot this issue with Wayland.

2

For me happens something similar, but after logging in wayland, I see only a black screen and the mouse cursor. If I use the terminal I see kwin with 100% cpu utilization. I have modeset in the kernel parameters. In X11 eveything is fine

3

I had the same issue when I tried it (The black screen).
Seems you need to enable kernel mode setting for it to work.
I followed this guide: [SOLVED] Plasma 6 Wayland+Nvidia black screen and mouse cursor only / Newbie Corner / Arch Linux Forums

However, I guess the way described here should also work: SDB:NVIDIA the hard way - openSUSE Wiki

4

Thank you for your insights.
I ended up going back to the 550.100 driver which was later upgraded to the current 550-107 during one of the latest snapshots, and everything is working fine now with both X11 and Wayland.
My system now :

inxi -G
Graphics:
  Device-1: NVIDIA GA104GL [RTX A4000] driver: nvidia v: 550.107.02
  Display: wayland server: X.org v: 1.21.1.12 with: Xwayland v: 24.1.2
    compositor: kwin_wayland driver: X: loaded: nvidia
    unloaded: fbdev,modesetting,vesa gpu: nvidia resolution: 5120x1440
  API: EGL v: 1.5 drivers: nvidia,swrast,zink
    platforms: gbm,wayland,x11,surfaceless,device
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 550.107.02
    renderer: NVIDIA RTX A4000/PCIe/SSE2
  API: Vulkan v: 1.3.290 drivers: N/A surfaces: xcb,xlib,wayland
5

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