diff --git a/nixos/thinkman/hardware-configuration.nix b/nixos/thinkman/hardware-configuration.nix
index 02bc3af..0e74410 100644
--- a/nixos/thinkman/hardware-configuration.nix
+++ b/nixos/thinkman/hardware-configuration.nix
@@ -1,19 +1,7 @@
 { config, lib, ... }:
 {
-  boot = {
-    # acpi_call makes tlp work for newer thinkpads
-    kernelModules = [ "acpi_call" ];
-    extraModulePackages = with config.boot.kernelPackages; [ acpi_call ];
-
-    # Force use of the thinkpad_acpi driver for backlight control.
-    # This allows the backlight save/load systemd service to work.
-    kernelParams = [ "acpi_backlight=native" ];
-
-    # video driver
-    initrd.kernelModules = [ "i915" ];
-  };
-
-  services.fstrim.enable = lib.mkDefault true;
+  # video driver
+  boot.initrd.kernelModules = [ "i915" ];
 
   # Special power management settings for ThinkPads
   services.tlp.enable = true;