1 files changed, 31 insertions, 0 deletions
diff --git a/modules/x250.nix b/modules/x250.nix
new file mode 100644
index 00000000..025bc302
--- /dev/null
+++ b/modules/x250.nix
@@ -0,0 +1,31 @@
+{ config, pkgs, ... }:
+
+{ boot.extraModulePackages = with config.boot.kernelPackages; [
+    acpi_call
+  ];
+
+  hardware.firmware = with pkgs; [
+    firmwareLinuxNonfree
+  ];
+
+  services.xserver.monitorSection = ''
+    DisplaySize 277 156
+  '';
+
+  services.tlp.extraConfig = ''
+    # Newer Thinkpads have a battery firmware
+    # it conflicts with TLP if stop thresholds are set
+    START_CHARGE_THRESH_BAT0=70
+    # STOP_CHARGE_THRESH_BAT0=80
+    START_CHARGE_THRESH_BAT1=70
+    # STOP_CHARGE_THRESH_BAT1=80
+
+    DISK_APM_LEVEL_ON_AC="254 254"
+    DISK_APM_LEVEL_ON_BAT="128 128"
+
+    # One or both of these lines stops disk corruption
+    # when re-attaching to AC whilst on.
+    SATA_LINKPWR_ON_BAT=medium_power
+    SATA_LINKPWR_BLACKLIST="host1"
+  '';
+}