T440p Wifi not enable

Hi every one :slight_smile:
I recently try to install Nixos on my Thinkpad T440p but the Intel Corporation Wireless 7260 isn’t detected in the NetworkManager interface.
I use Nixos 18.09 on stable channel with a KDE Desktop.

I try different things like :

boot.kernelModules = [ "kvm-intel" "iwlwifi" ];


boot.extraModprobeConfig = ''
    options iwlwifi bt_coex_active=0 power_save=Y
    options iwldvm force_cam=N

but anything works.

Thanks for your help :slight_smile:

Hey Vskilet,

this might not entirely address your problem, but did you hear already
about nixos-hardwaren [0]? It’s a collection of NixOS modules and the
T440p is already packaged there.

Maybe the module helps with your WiFi (I don’t understand it enough for
that) and if not, you could eventually bring your succesful solution
upstream there.

[0] https://github.com/NixOS/nixos-hardware

Solved by setting this in configuration.nix :
hardware.enableRedistributableFirmware = true