After system update, cannot set 2K resolution on Plasma (Fedora43) + NVIDIA

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Edit:
I’ve temporarily fixed the issue by downgrading the NVIDIA driver.

Hi everyone,
I’m running Fedora 43 + KDE Plasma 6.5.2 + NVIDIA GPU.
After a recent system update, my monitor can no longer use 2K (2560×1440) resolution. Before the update, everything worked fine.

Currently, only 1920×1080 is available in Display Settings.

Here is what I have checked:

  1. nvidia-drm loads correctly in dmesg:
[drm] [nvidia-drm] Loading driver
[drm] Initialized nvidia-drm
  1. xrandr --listmonitors (Wayland):
Monitors: 1
0: +*HDMI-A-1 1920x1080
  1. journalctl -b | grep -i edid shows no EDID errors or messages.
  2. nvidia-smi is not found, even though NVIDIA packages are installed:
bash: nvidia-smi: command not found
  1. My system seems to have multiple kmod-nvidia versions installed at the same time:

apache

kmod-nvidia-6.17.6-200.fc42
kmod-nvidia-6.17.6-300.fc43
kmod-nvidia-6.17.7-300.fc43
xorg-x11-drv-nvidia-580.105.08
akmod-nvidia-580.105.08
  1. Running kernel:
6.17.7-300.fc43.x86_64

I tried removing all NVIDIA packages and reinstalling akmod-nvidia, then rebuilding modules with akmods --force and dracut --force, but the issue remains. I still cannot get 2K resolution, and nvidia-smi is still missing.

Question:
What should I check next? Is there a known issue in Fedora 43 with Plasma 6.2 + Wayland + NVIDIA after a recent update?
Could mixed kmod versions or missing EDID be the cause?

Thanks for any help!

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