3x+ battery life

nierro · 2012-10-21 08:10:10

You have to change that value through kernel line in grub. Users can no more change it, neither admin can.
Read here: http://git.kernel.org/?p=linux/kernel/g … 2c565c6b0d .

Zucca · 2012-10-21 10:58:05

nierro wrote:

You have to change that value through kernel line in grub. Users can no more change it, neither admin can.
Read here: http://git.kernel.org/?p=linux/kernel/g … 2c565c6b0d .

That's important IMO. Should be taken account in powerdown development.

Lockheed · 2012-10-23 11:10:59

I just wanted to say how extremely BAD of an idea is to update this package in AUR = upon update all the custom changes get lost!
Damn it, now I have to do all the work again. What an annoying concept...

I suggest everyone to blacklist this package in pacman.conf

Last edited by Lockheed (2012-10-23 11:13:20)

Zucca · 2012-10-23 14:04:36

True. So true.
That's why I'm about to commit a patch that add function to load variables from .conf file(s).

SuperBo · 2012-10-24 12:30:05

Do I need to disable laptop-mode-tools or cpupower to run this package?
Does anyone compare this package to laptop-mode-tools?

Last edited by SuperBo (2012-10-24 12:33:04)

nierro · 2012-10-24 12:59:28

Both yes.
Read here: https://bbs.archlinux.org/viewtopic.php … 6#p1108536 .
EDIT: Point 6 is now fixed (with the udev rule.) and it's even better.

Last edited by nierro (2012-10-24 13:01:09)

SuperBo · 2012-10-24 16:35:33

Thanks!
One more question.
If I use kernel 3.6, do I need to add "i915.i915_enable_rc6=1" to boot parameters.
And, What is rc6 mode?

renodesper · 2012-10-25 09:56:38

Mine showing this error log when executing powerdown, anyone know why?

[powerdown] cannot write powersave to /sys/module/pcie_aspm/parameters/policy
[powerdown] cannot run iw dev wlan0 set power_save on

nierro · 2012-10-25 10:02:14

1: you should set "pcie_aspm=force" in your kernel grub line.
2 : May be your wireless card does not support powersave. Try "iwconfig wlan0" from root in terminal and post here the output. (sorry for not using code tag but i'm from my smartphone )

djipey · 2012-10-25 17:27:18

Hello.

Ok, i've uninstalled and disabled laptop-mode-tools, upower, and I put "pcie_aspm=force" and "i915.i915_enable_rc6=1" on my boot line. But it does not seems to have any effect on my battery, I'm still stuck at ~ 1h30 when I run powerdown. But I'm not sure about the way to use the command. Do I only have to launch it in a terminal ? No special configuration ?

nierro · 2012-10-25 17:34:50

It should be ran automatically during startup, thanks to a udev rule...so no user input is mandatory

djipey · 2012-10-25 17:56:32

Ok, now I see, it decreases the light on battery. So, no more optimizations are possible ? No packages to install, just powerdown and go ?

By the way, I have an error when I run it in a shell:

[powerdown] cannot write 1 to /sys/module/i915/parameters/i915_enable_rc6

nierro · 2012-10-25 18:08:46

For the error: add ""i915.i915_enable_rc6=1" to the kernel grub line.
In powerdown there are lots of optimization regarding battery drain...you can't do much more, i guess...

djipey · 2012-10-25 18:11:33

Ok. Is there any documentation about this project ? I didn't find anything on the repo. Like, what does it do ? Does it also spin down the disks, like lmt + hdparm ?

Unia · 2012-10-25 18:13:16

djipey wrote:

Ok. Is there any documentation about this project ? I didn't find anything on the repo. Like, what does it do ? Does it also spin down the disks, like lmt + hdparm ?

Yes, it spins down your harddrive. There's no documentation, but you can find all the information you need when Googling. It's what I did

nierro · 2012-10-25 18:54:28

It does what lmt does, virtually.
You should have a look at the powerdown script to really understand what it does, but as I said, it is the same as laptop-mode-tools, may be with some more tweaks too.

djipey · 2012-10-26 07:28:04

Ok, I read it. A bunch of stuff, indeed. I haven't seen the directory where the logs are stored, it wouldbe usefull to know where they go, to check if every command is well executed.

zenlord · 2012-10-26 07:37:00

There is a wiki-page that holds all necessary info.

djipey · 2012-10-26 07:58:26

Where ?? I googled it before asking my questions, I did not find anything.

zenlord · 2012-10-26 08:19:33

The first resource you should check at all times, the Archlinux wiki. Specifically for powerdown: https://wiki.archlinux.org/index.php/Powerdown

Unia · 2012-10-26 09:09:19

That page does now describe all the functions it uses, and for that you need to use Google.

zenlord · 2012-10-26 09:18:28

Unia wrote:

That page does now describe all the functions it uses, and for that you need to use Google.

Correct, but the question was if there was any documentation available for this project.

Unia · 2012-10-26 09:31:25

^ Ah, I misunderstood the question then I went with "what does it do?" and for that one needs the Google. Apologies

SuperBo · 2012-10-27 00:50:25

After taking a look at powerup and powerdown script. I think it's better to set default governnor when power-on to ondemand.
On wiki page, it's recommend to use ondemand or conservative (on laptop).
I also write a script to config powerdown, it help you customize setting.
At the present it's supporting change governor and brightness only. I'll update other feature later.

Use:

powerconfig init

to run wizard
or you cant set normally

powerconfig set up_govern ondemand

Download
https://docs.google.com/open?id=0BxF4gA … zdxNDZVZjQ

Last edited by SuperBo (2012-10-27 00:51:29)

jakob · 2012-10-28 16:42:44

Hey, I've updated the wiki a bit, althogh I'm not sure I like the way you have to be careful about updates. But thanks for this tool anyway!

Arch Linux

#301 2012-10-21 08:10:10

Re: 3x+ battery life

#302 2012-10-21 10:58:05

Re: 3x+ battery life

#303 2012-10-23 11:10:59

Re: 3x+ battery life

#304 2012-10-23 14:04:36

Re: 3x+ battery life

#305 2012-10-24 12:30:05

Re: 3x+ battery life

#306 2012-10-24 12:59:28

Re: 3x+ battery life

#307 2012-10-24 16:35:33

Re: 3x+ battery life

#308 2012-10-25 09:56:38

Re: 3x+ battery life

#309 2012-10-25 10:02:14

Re: 3x+ battery life

#310 2012-10-25 17:27:18

Re: 3x+ battery life

#311 2012-10-25 17:34:50

Re: 3x+ battery life

#312 2012-10-25 17:56:32

Re: 3x+ battery life

#313 2012-10-25 18:08:46

Re: 3x+ battery life

#314 2012-10-25 18:11:33

Re: 3x+ battery life

#315 2012-10-25 18:13:16

Re: 3x+ battery life

#316 2012-10-25 18:54:28

Re: 3x+ battery life

#317 2012-10-26 07:28:04

Re: 3x+ battery life

#318 2012-10-26 07:37:00

Re: 3x+ battery life

#319 2012-10-26 07:58:26

Re: 3x+ battery life

#320 2012-10-26 08:19:33

Re: 3x+ battery life

#321 2012-10-26 09:09:19

Re: 3x+ battery life

#322 2012-10-26 09:18:28

Re: 3x+ battery life

#323 2012-10-26 09:31:25

Re: 3x+ battery life

#324 2012-10-27 00:50:25

Re: 3x+ battery life

#325 2012-10-28 16:42:44

Re: 3x+ battery life

Board footer