Save power with Ubuntu 9.04 (Jaunty Jackalope) on a ThinkPad T400
// have to read wiki syntax to format correctly//
I have Thinkpad T400 WC8......
9 cell battery now 60% last 4.37 h
Idle consumtion after this tipps: 11-13 watts
I use the ATI Card with the fglrx drivers, unfortunatelly the have no option to save power.
I use powernowd, Gudiance Power manager and KDE4.2 powerdevil.
I will get into deeper later.
Stop deamons you don't need with rcconf
Set wlan and bluetooth off (hardware switch)
Deaktivate the touchpad.
My Bios Settings:
//have to look up other things//
Script to save power
This script reduce the power consumtion to 13-16 watts
Save this script as /etc/rc.local
Then modify /etc/kde4/kdm/Xsetup
before exit 0
// need a place to upload permanently //
Modify the xorg
Modify like this:
Identifier "Configured Video Device" Driver "fglrx"
Option "DynamicClocks" "true" Option "PowerState" "1" BusID "PCI:1:0:0"
Identifier "aticonfig-Monitor-1" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true"
Then modify /etc/default/powernowd
with this parameters(add after -q with a space after q):
-m 2 -l 20 -u 70 -s 300000
Powersave Profile Settings:
general: Disable Composite
Dim after 1 min
Idle for +20 min shutdown
Lid: lock screen
- Button: Show logout dialog
Screen Brighness 75 %
enable display power management
standby 3 min suspend 6 min power off 8min
scaleing: userspace sheme: powersave
Lock screen after resume
drops below 10 min --> shutdown idle more than XXX do nothing cpu freq: dynamic (changed from powernowd then) Lid: lock screen
Well good luck and have fun