Difference between revisions of "Save power with Ubuntu 9.04 (Jaunty Jackalope) on a ThinkPad T400"

From ThinkWiki
Jump to: navigation, search
(Save power and use only 11-13 watts idle)
Line 9: Line 9:
 
9 cell battery now 60% last 4.37 h
 
9 cell battery now 60% last 4.37 h
  
Idle consumtion after this tipps: 11-13 watts
+
Idle consumtion after this tipps: 11-13 watts before th tipps i used 30-35 watts
  
 
I use the ATI Card with the fglrx drivers, unfortunatelly the have no option to save power.
 
I use the ATI Card with the fglrx drivers, unfortunatelly the have no option to save power.
Line 53: Line 53:
 
The script:
 
The script:
  
[http://de.pastebin.ca/1397478 think_powersave]
+
[http://de.pastebin.ca/1397516 think_powersave]
  
 
== Modify the xorg ==
 
== Modify the xorg ==
Line 135: Line 135:
  
 
echo "blacklist yenta_socket" >> /etc/modprobe.d/blacklist.conf
 
echo "blacklist yenta_socket" >> /etc/modprobe.d/blacklist.conf
 
==Extend battery life==
 
Let only charge your battery if the level goes under 12 % stops charge at 92%
 
Does not load at any value between these two.
 
 
'''WARNING: you have to uncomment these lines in the script because i thaught they are permanent but they don't'''
 
 
echo 12 > /sys/devices/platform/smapi/BAT0/start_charge_thresh
 
 
echo 92 > /sys/devices/platform/smapi/BAT0/stop_charge_thresh
 
 
  
 
Well good luck and have fun i think if you use the intel card you can additionally save 3-5 watts
 
Well good luck and have fun i think if you use the intel card you can additionally save 3-5 watts

Revision as of 19:31, 20 April 2009

Hi

// have to read wiki syntax to format correctly//

Basic information

I have Thinkpad T400 WC8......

9 cell battery now 60% last 4.37 h

Idle consumtion after this tipps: 11-13 watts before th tipps i used 30-35 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.

4 Gig RAM 2.26 GHz 250GB/5400

Hibernate and suspend work (sometimes, crap fglrx driver)

Let's start:

Stop deamons you don't need with rcconf

Set wlan and bluetooth off (hardware switch)

Deaktivate the touchpad.

My Bios Settings:

Bluetooth off

Modem off

//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 and do chmod +x on it

Then modify /etc/kde4/kdm/Xsetup

and add:

exec /etc/rc.local

before exit 0

The script:

think_powersave

Modify the xorg

Modify like this:

Section "Device"

       Identifier  "Configured Video Device"
       Driver      "fglrx"

......

       Option      "DynamicClocks" "true"
       Option      "PowerState" "1"
       BusID       "PCI:1:0:0"

EndSection

and

Section "Monitor"

       Identifier   "aticonfig-Monitor[0]-1"
       Option      "VendorName" "ATI Proprietary Driver"
       Option      "ModelName" "Generic Autodetecting Monitor"
       Option      "DPMS" "true"                              

EndSection

Use powernowd

install powernowd

Then modify /etc/default/powernowd

with this parameters(add after -q with a space after q):

-m 2 -l 20 -u 70 -s 300000

Powerdevil settings

Powersave Profile Settings:

general: Disable Composite

Dim after 1 min

Idle for +20 min shutdown

Lid: lock screen

any Button: Show logout dialog

screen:

Screen Brighness 75 %

enable display power management

standby 3 min suspend 6 min power off 8min

cpu:

scaleing: userspace sheme: powersave

Gudiance PowerManager

Lock screen after resume

Battery Powered:

Brightness 75%

drops below 10 min --> shutdown idle more than XXX do nothing cpu freq: dynamic (changed from powernowd then) Lid: lock screen

Blacklist

echo "blacklist pcmcia" >> /etc/modprobe.d/blacklist.conf

echo "blacklist yenta_socket" >> /etc/modprobe.d/blacklist.conf

Well good luck and have fun i think if you use the intel card you can additionally save 3-5 watts