[ltp] X200 Battery Life

n0rdik0 linux-thinkpad@linux-thinkpad.org
Mon, 22 Dec 2008 04:02:01 -0800 (PST)



Yves-Alexis Perez-2 wrote:
> 
> On sam, 2008-12-20 at 13:03 -0800, n0rdik0 wrote:
> 
>> No problem. There may be some non-obvious stuff that you might have not
>> tried.
> 
>> - First, the obvious ones: laptop-mode (disk spinning down), brightness
>> to
>> minimum, radios off.
> 
> That's not a fair comparison with Vista, afaiui.
> 
>> - Turn min power on sata links:
>> "for i in /sys/class/scsi_host/*/link_power_management_policy; do    echo
>> min_power > $i; done;"
> 
>>  wifi on (echo 5 >
>> /sys/class/net/wlan0/device/power_level) 
> 
> Do you know some ways to make those changes permanent (except than
> adding the commands to a rc.local)?
> 
> Cheers,
> -- 
> Yves-Alexis
> 
>  
> 
The best soultion would be to add a set of scripts to laptop-mode modules
directory, so you only apply those tweak when you are on battery.
-- 
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