Low battery time with Arch

Median · 2014-09-30 23:08:06

Hi,

I'm running Arch on an Asus UX32LN and I've noticed that since my installation of Arch, my battery time has been reduced by 2-3 hours compared to when I was running Windows 8.1. What's the cause of this? Can I diagnose it somehow? I've lowered my screen brightness, I'm not using the graphics card or anything, running just a WM and no extras. This is just me sitting with chromium and a terminal open at most.

Any ideas?

clfarron4 · 2014-09-30 23:25:36

Are you using BumbleBee to manage the nVidia card? Or have you disabled one of the cards from the BIOS/UEFI settings?

Pse · 2014-10-01 00:55:53

Use powertop to diagnose power usage.

Last edited by Pse (2014-10-01 00:56:14)

lLuvly.tio · 2014-10-01 04:23:47

check

Last edited by lLuvly.tio (2014-10-01 04:49:00)

Median · 2014-10-01 11:03:33

I used powertop and noticed that Chromium was draining my battery life quite well, other than that I guess it's the screen brightness. Still feels to me that Windows had better optimization from the start, but I will look into how I can optimize even more, if none has any tips.

clfarron4 · 2014-10-01 11:13:07

Median wrote:

I used powertop and noticed that Chromium was draining my battery life quite well, other than that I guess it's the screen brightness. Still feels to me that Windows had better optimization from the start, but I will look into how I can optimize even more, if none has any tips.

Are you using BumbleBee to manage the nVidia card? Or have you disabled one of the cards from the BIOS/UEFI settings?

Median · 2014-10-01 12:33:04

clfarron4 wrote:

Median wrote:
I used powertop and noticed that Chromium was draining my battery life quite well, other than that I guess it's the screen brightness. Still feels to me that Windows had better optimization from the start, but I will look into how I can optimize even more, if none has any tips.
Are you using BumbleBee to manage the nVidia card? Or have you disabled one of the cards from the BIOS/UEFI settings?

No.

Pse · 2014-10-01 16:39:21

Are all tunables in PowerTop OK? What's the power use of hardware devices? Have you tried switching from the Intel P-State CPU governor to ondemand or viceversa? (Some people report better power savings with one or the other).

PD: trying laptop-mode-tools might be worthwhile too.

Last edited by Pse (2014-10-01 16:40:00)

Arch Linux

#1 2014-09-30 23:08:06

Low battery time with Arch

#2 2014-09-30 23:25:36

Re: Low battery time with Arch

#3 2014-10-01 00:55:53

Re: Low battery time with Arch

#4 2014-10-01 04:23:47

Re: Low battery time with Arch

#5 2014-10-01 11:03:33

Re: Low battery time with Arch

#6 2014-10-01 11:13:07

Re: Low battery time with Arch

#7 2014-10-01 12:33:04

Re: Low battery time with Arch

#8 2014-10-01 16:39:21

Re: Low battery time with Arch

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