Arch Linux

dzan

Member

Registered: 2012-10-26

Posts: 2

Thinkpad X200 battery issues

hi,

I know there are related topics already but I was recommended to start a new one on this. Is there any progress on this? I just installed arch for the first time ( used debian before ) on my x200 and it's running at 14W-17W which is really high in my opinion. I don't even an hour and a half like this! I've read a lot and tried a lot of option but I can't manage to get the consumption down. I use tlp, I set the i915 R6 and frame buffer compresion kernel parameters, undervolted my cpu to vids 24 21 0 0,...

Other topic:
https://bbs.archlinux.org/viewtopic.php?id=150984

These sources manage to get down to 7W - 6.5W:
http://forum.thinkpads.com/viewtopic.php?f=5&t=84507
http://itgen.blogspot.be/2009/03/energy … linux.html

Here is a PowerTop 2.1 log:
http://users.telenet.be/dzn/PowerTOP.html

A tlp-stat log:
http://pastebin.com/EufPcsf8

Some specific questions:
Is there a good way to make those powertop tunables stick after setting them?
The CPU supports state C6.. why isn't it in powertop? Is it used? This would make a big! difference if it's not.
Might just by in my head but I'm under the impression that right after the install the power consumption and CPU temp was better ( 9W-10W like ), now I hear the fan all of the time. Maybe I done something to make it worse? ( didn't have xcompmgr & such then ).

All help would be greatly appriciated.. my laptop is not really useable atm since it won't last more than 1 hour on a charge ( I know my battery is seriously worn but that's not the main issue. )

Thx

pyknite

Member

Registered: 2010-03-03

Posts: 166

Re: Thinkpad X200 battery issues

Hi,

It seems the x220 have some problem with the latest kernel... you may have a look here: https://bbs.archlinux.org/viewtopic.php?id=150743