Added configuration for panasonic

Update panasonic/letsnote/cf-lx4/default.nix

Co-authored-by: Jörg Thalheim <[email protected]>

Added profile to flake.nix

Author: 2gn

README.md

@@ -197,6 +197,7 @@ See code for all available configurations.
 | [Microsoft Surface Range](microsoft/surface)                        | `<nixos-hardware/microsoft/surface>`               |
 | [Omen en00015p](omen/en00015p)                                      | `<nixos-hardware/omen/en00015p>`                   |
 | [One-Netbook OneNetbook 4](onenetbook/4)                            | `<nixos-hardware/onenetbook/4>`                    |
+| [Panasonic Let's Note CF-LX4 ](panasonic/letsnote/cf-lx4)           | `<nixos-hardware/panasonic/letsnote/cf-lx4>`       |
 | [PC Engines APU](pcengines/apu)                                     | `<nixos-hardware/pcengines/apu>`                   |
 | [PINE64 Pinebook Pro](pine64/pinebook-pro/)                         | `<nixos-hardware/pine64/pinebook-pro>`             |
 | [Purism Librem 13v3](purism/librem/13v3)                            | `<nixos-hardware/purism/librem/13v3>`              |

flake.nix

@@ -129,6 +129,7 @@
       lenovo-thinkpad-z = import ./lenovo/thinkpad/z;
       lenovo-thinkpad-z13 = import ./lenovo/thinkpad/z/z13;
       lenovo-yoga-6-13ALC6 = import ./lenovo/yoga/6/13ALC6;
+      letsnote-cf-lx4 = import ./panasonic/letsnote/cf-lx4;
       microsoft-surface = import ./microsoft/surface;
       microsoft-surface-pro-3 = import ./microsoft/surface-pro/3;
       msi-gs60 = import ./msi/gs60;

panasonic/letsnote/cf-lx4/default.nix

@@ -0,0 +1,11 @@
+{
+  imports = [
+    ../../../common/cpu/intel
+    ../../../common/pc/laptop
+    ../../../common/pc/ssd
+  ];
+
+  # Force use of the intel_backlight driver for backlight control.
+  # This allows the backlight save/load systemd service to work.
+  boot.kernelParams = [ "acpi_backlight=video" ];
+}