apple/macbook-air/4: enable RC6p, RC6pp GPU sleep states

2017-12-27 21:39:31 +00:00 · 2017-12-27 21:39:31 +00:00 · 19c0c04f61
parent 5a00ea423a
commit 19c0c04f61
2 changed files with 13 additions and 1 deletions
--- a/apple/macbook-air/4/default.nix
+++ b/apple/macbook-air/4/default.nix
@ -1,7 +1,10 @@
 { lib, ... }:

 {
-  imports = [ ../. ];
+  imports = [
+    ../.
+    ../../../common/cpu/intel/sandy-bridge
+  ];

  boot.kernelParams = [
    "acpi_backlight=vendor"
--- a/common/cpu/intel/sandy-bridge/default.nix
+++ b/common/cpu/intel/sandy-bridge/default.nix
@ -0,0 +1,9 @@
+{
+  imports = [ ../. ];
+
+  # Enables RC6, RC6p and RC6pp.
+  # Last two are only available on Sandy Bridge CPUs (circa 2011).
+  boot.kernelParams = [
+    "i915.enable_rc6=7"
+  ];
+}