Note cyapa is only for c720p.

[ikiwiki.git] / docs / user / laptoptipsandtricks / index.mdwn

diff --git a/docs/user/laptoptipsandtricks/index.mdwn b/docs/user/laptoptipsandtricks/index.mdwn
index 69c4e3d..84e21fe 100644 (file)
--- a/docs/user/laptoptipsandtricks/index.mdwn
+++ b/docs/user/laptoptipsandtricks/index.mdwn
@@ -19,17 +19,26 @@ You can get full console resolution on an Intel 945-series graphics adapter with
  
 Set it to 1024x600 for example:
 
-   % sudo ./915resolution 41 1024 600
+    % sudo ./915resolution 41 1024 600
 
 Then load vesa:
 
-   % kldload vesa
+    % kldload vesa
 
 And use vidcontrol:
 
-   % vidcontrol -i mode|grep 1024
-    257 (0x101) 0x0000000f G 1024x600x8 1    8x16  0xa0000 64k 64k 0xd0000000 7872k
-    273 (0x111) 0x0000000f G 1024x600x16 1   8x16  0xa0000 64k 64k 0xd0000000 7872k
-    274 (0x112) 0x0000000f G 1024x600x32 1   8x16  0xa0000 64k 64k 0xd0000000 7872k
+    % vidcontrol -i mode|grep 1024
+     257 (0x101) 0x0000000f G 1024x600x8 1    8x16  0xa0000 64k 64k 0xd0000000 7872k
+     273 (0x111) 0x0000000f G 1024x600x16 1   8x16  0xa0000 64k 64k 0xd0000000 7872k
+     274 (0x112) 0x0000000f G 1024x600x32 1   8x16  0xa0000 64k 64k 0xd0000000 7872k
 
-   % vidcontrol MODE_273
+    % vidcontrol MODE_273
+
+
+# CPU
+
+Allow cpu entering energy-saving state:
+
+    hw.acpi.cpu.cx_lowest=C3
+
+Use est/powernow to control cpu frequency.