[ltp] X60 - (bad) experience, others?

[Ari El]

Hi Tim, the difference comes from many sources I'd think. The ability of the
kernel to keep the processors in deeper sleep states for longer times (it
has improved quite a bit but not yet there), and the ability of all the
linux drivers used by the different subsystems to enter low power modes, I'd
say are the biggest difference-makers.

The situation will keep improving I'm sure, but it will take more time.

cheers


 

Tim Niemeyer wrote:
> 
> Hallo Ari,
> 
> I have a X61s and have the same problems...
> What makes this difference on power consumption between windows and linux?
> 
> * Ari El <ari.reads@gmail.com> [02-02-08 12:16]:
>> From: Ari El <ari.reads@gmail.com>
>> To: linux-thinkpad@linux-thinkpad.org
>> Subject: Re: [ltp] X60 - (bad) experience, others?
>> Date: Sat, 2 Feb 2008 12:16:07 -0800 (PST)
>> 
>> 
>> I have an X60s (1702, Core Duo (not core2)) with and 8-cell battery pack.
>> 
>> What I'd say is: the bad experience on the X60s is with Linux. The
>> machine
>> itself is awesome.
>> 
>> I've had it for a year and a half; with WinXP it is really fast for most
>> purposes, runs cold, and after all this time it is still giving me 8 to
>> 9h
>> of battery life when used for writing (word) and light surfing (wireless
>> on), 30 or 40% brightness. Consumption averages an awesome 7.5W, and I've
>> seen it going to 6W with wireless off. It wakes up from hibernation in 15
>> seconds or so. And all this is with no SSD drive... yet!
>> 
>> I installed dual-boot Linux in the x60s the day I bought it, and kept
>> re-installing all new ubuntu releases. Everything basically works (save
>> for
>> the fingerprint reader, although I heard it is possible to make it work).
>> Even after tweaking, power consumption averages 10 to 11W for the same
>> usage
>> pattern as above. 
>> 
>> I bought the machine to carry it around, so I'm still booting winxp on
>> it. I
>> can't wait for the day linux will give me a comparable battery life. I
>> switched to linux in every other machine at the office and at home, but
>> not
>> in my x60s, yet. 
>> 
>> I'm sure  powertop, the tickless kernel mode and other good work of intel
>> and other folks will eventually trickle down the chain and we will
>> eventually get there. I thought this was going to faster though. 
> I don't think this things will help for longer battery life... :-(
> 
> 
> Tim Niemeyer
> 
>  
> 

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