Dell XPS 15-9550: nvidia driver is malfunctioning

On my XPS 15-9550, I started recently (~2 weeks ago) getting an error with nvidia. I received this message running `nvidia-smi`: > NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running. And today I checked `sudo journalctl -b` and it had this error message: ``` Apr 13 16:41:14 nixos kernel: NVRM: The NVIDIA NVIDIA GeForce GTX 1050 GPU installed in this system> NVRM: supported through the NVIDIA 580.xx Legacy drivers. Please NVRM: visit http://www.nvidia.com/object/unix.html for more NVRM: information. The 595.58.03 NVIDIA driver will ignore NVRM: this GPU. Continuing probe... Apr 13 16:41:14 nixos kernel: NVRM: No NVIDIA GPU found. ``` I added the following to my config, and things work again (after reboot): ``` hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.legacy_580; ``` I'm guessing the GPU was dropped by nvidia. I propose adding the line above to the XPS 15-9550 config. It could all be related to this: https://github.com/NixOS/nixos-hardware/issues/1808 , but I'm not sure. `nixos-version`: 26.05.20260409.4c1018d (Yarara)