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Questions tagged [powertop]

PowerTOP is a Linux tool to diagnose issues with power consumption and power management.

22 questions
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2 answers

Powertop tunables: what does it do?

I just installed Powertop 1.98 on my laptop (T420 + FC15). There is a section called "Tunables". Half of my devices show as Bad. I see I can toggle from Bad to Good? What this section is for? What should/can I toggle? Also, is there any documention…
Olivier Toupin
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3 answers

How do I make Powertop's suggestions permanent?

When I run Powertop, and look at the Tunables screen, about twenty things are listed as Bad. I can toggle these to Good by pressing enter, and when I do so, projected battery lifetime doubles. How can I make these changes persist? (I'm on Fedora 18,…
mattdm
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8
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1 answer

Powertop doesn't display Power est. column

When I run powertop, it doesn't display the "Power Est." column that shows the estimated power consumption in Watts of each row. It should look like in the screen capture here: MacBook Pro Retina: huge power consumption But it actually looks like…
reasgt
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5
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1 answer

card reading killing my battery, on macbook pro running Debian

I am currently using a macbook pro but the operating system is debian 8.2 not os x I am using a macbook pro but there's this one device that's just draining a lot of power. This USB device: Card Reader (Apple) 32.5 W 100.0% …
user1610950
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4
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0 answers

MacBook Pro Retina: huge power consumption

I'm currently running Debian/Jessie on a MacBook Pro Retina 10,1 15" (early-2103). Everything is going well (ethernet, WiFi, retina, etc.) but I worry about its power consumption. laptop-mode manages the automatic power management of all my devices,…
user48969
4
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0 answers

Fedora battery life and tick_sched_timer

I recently installed Fedora 30 for work on my Gigabyte Aero 15X v8. I blacklisted nouveau drivers as I don't need the discrete GPU while working and installed TLD. But even after that, the battery life is around 4-4:30 h versus more than 6 on…
Morysh
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4
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1 answer

Two "Audio codecs" have 100% power usage in PowerTOP - what does this mean?

Should I be worried? My battery power doesn't last long (~1hr), could this be the reason? How can I fix this (if it has to be fixed at all)?
jcora
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3
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1 answer

Power consumption monitoring problem

I used powertop v.2.1 under Ubuntu 12.04 but it missed the power est. column.It's the same situation as described https://bugzilla.redhat.com/show_bug.cgi?id=796068‎ and that bug is supposed to be fixed already. I tried lm_sensors but it didn't…
Kevin Q
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0 answers

Hourly or daily power consumption or power average consumption

I've read countless posts about reducing power consumption, and that's not why I'm here. I'm looking to get daily or hourly power usage statistics, so that I can estimate the cost of keeping equipment running 24/7. How do I do that?? I don't need an…
Syco
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2
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Reduce high power consumption by keyboard and trackpad

I am running Fedora 27 on a 2014 11 inch MacBook Air, using GNOME 3.26. I only average about 5 hours on battery instead of the 9 hours this model would last running Mac OS. I know getting the 9 hours of battery life on Linux is not feasible, but I…
Daniel O
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Linux Wifi High Power Consumption

I'm running Fedora 20, kernel 3.15.6 and ath9 driver with an ateros card. My battery life is very short, on an older debian install I had around 3 to 4 hours, now I'm between 1 and 2 hours. Powertop shows that the wireless uses about 18 W which is…
loeblicus
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High varying discharge rate

I got an Asus N76VB notebook. On Windows I can easily stay on battery for 3-4 hours in powersave mode, but on Linux (first Ubuntu 14.04, currently Fedora 20) the battery's discharge rate varies from 10 watt to 40 watt (~25 watt mean) on powersave…
Louis Matthijssen
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Powertop systemd service Status - Not sure if it is working

I enabled the powertop service. It always shows the following: $ sudo systemctl status powertop -l ○ powertop.service - Extend the battery life of laptop Loaded: loaded (/lib/systemd/system/powertop.service; enabled; vendor preset: enabled) …
Porcupine
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Where is the missing power consumption coming from?

My laptop (Dell Precision 7550) has been running extremely hot and consuming battery very quickly, even with no applications running. According to powertop, when running nothing but gnome and a single terminal, the system has been drawing in the…
jayhendren
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How can I disable usb autosuspend for a given particular device or all usb

I am using on Fedora 32 a wireless usb mouse that get autosupended and that's driving me crazy. I looked online and tried many things without success. I identified the device using powertop Good Autosuspend for USB device xHCI Host…
statquant
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