Questions tagged [powertop]

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

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power-calibrate installed, command not found

Same goes for powertop strangely. I have re-logged in to my session, and rebooted, but that doesn't change anything... And using bash neither: What can I do?
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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 ...
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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 ...
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Laptop will not sleep if Tuned and Powertop are enabled

I have a Lenovo Thinkpad X1 Extreme Gen 2 laptop. Intel CPU. Fedora 33 KDE. I have installed Powertop2Tuned and Tuned and thermald. When Tuned is active and using the powertop profile, the computer ...
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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 ...
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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 ...
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Unable to set power tuning parameters at boot time from systemd

I'm using Fedora 30 on a laptop. I've tried setting power tune parameters using the systemd service that comes with powertop (powertop.service) and that didn't work. I then tried creating a shell ...
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powertop shows significantly more than 100% "C0 active" - isn't this impossible?

I ran a process which uses 100% CPU: stress -c 1. In powertop, the "Idle stats" tab shows about 120% "C0 active" for the busy logical CPU. By contrast when turbostat is used, turbostat --show Busy% ...
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laptop-mode-tools causes power saving behavior on the intel HDA sound card, despite /sys/module/snd_hda_intel/parameters/power_save being 0

I've run into a peculiar issue. Let me describe: (please read EDIT2 as it gives the most important piece of the situation) On boot, from GRUB I pass argumentssnd_hda_intel.power_save=0 snd_hda_intel....
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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 ...
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Why does this USB device not autosuspend?

Running powertop and tabbing over to "Device stats", I see 100% usage - which means no autosuspend - for "USB device: usb-device-8087-0a2a". Googling this ID tells me it is a bluetooth device. Or ...
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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 ...
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2 votes
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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 ...
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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 ...
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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)?
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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: ...
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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 ...
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1 answer
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Openbox root autostart?

I want to run a script as root when the computer starts. This was earlier done in rc.local, but not anymore. What I've tried: putting the script in /etc/profile.d adding the /pathto/script.sh in /...
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1 answer
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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 ...
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10 votes
3 answers
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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 ...
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2 answers
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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 ...
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