Fixing NVIDIA BadTLP PCIe Freezes on Linux - or an ASUS TUF gaming laptop odyssey

Short summary

BadTLP PCIe errors on ASUS TUF laptops with NVIDIA GPUs running Linux stem from a power management handshake failure between AMD platform and GPU. The fix: add kernel parameters `pcie_aspm=off` and `nvidia.NVreg_PreserveVideoMemoryAllocations=1` to GRUB, rebuild, and reboot. Verify via `journalctl | grep BadTLP` returning nothing.

• •BadTLP errors caused by PCIe ASPM power management failures specific to AMD + NVIDIA hardware combination
• •Solution: disable ASPM and add NVIDIA memory preservation parameter to GRUB kernel config
• •Rebuild GRUB and reboot; verify fix with journalctl command

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