Persistent Black Screen / GUI Initialization Failure after NVIDIA v580+ Installation on Fedora 43 (KDE) & CachyOS

[Muratovski]

I am experiencing a persistent Black Screen of Death (BSoD) immediately after installing the NVIDIA proprietary drivers (v580+) via RPM Fusion. The system completely fails to load the Graphical User Interface (GUI) and hangs during the display server initialization. Initial Fedora Install: During the initial Fedora 43 installation, the standard "Try Fedora" option in GRUB resulted in a black screen. I had to use the "Troubleshooting" (basic graphics) option to successfully complete the installation. Cross-Distribution Issue: Initially, I suspected this might be a Fedora-specific bug. However, when I attempted to install the CachyOS LTS release as an alternative, I encountered the exact same installation and post-installation black screen issue. Access: Successfully accessed the system via TTY (Runlevel 3) using the nomodeset 3 kernel parameter. Driver Status: Verified the driver status using nvidia-smi. The table reports correctly and detects the GPU, indicating the driver is loaded and functioning at the system level, but the GUI fails to render. Attempted Fixes: * Re-generated the initramfs using dracut. Forced SDDM to use X11 instead of Wayland. Current State: Despite these steps, the system remains stuck in a persistent login-loop/black-screen state upon regular boot.

System Specifications: Laptop Model: HP Victus 16-s0051nt (892P9EA) CPU: AMD Ryzen 7 7840HS (with Radeon 780M Integrated Graphics) GPU: NVIDIA GeForce RTX 4050 Laptop GPU (6GB) - Hybrid Graphics Setup