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Questions tagged [powertop]

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

9 questions with no upvoted or accepted answers
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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 ...
3
votes
0answers
2k views

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 ...
2
votes
0answers
340 views

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 ...
2
votes
0answers
847 views

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 ...
1
vote
1answer
199 views

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 ...
1
vote
1answer
198 views

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% ...
1
vote
0answers
446 views

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....
1
vote
0answers
880 views

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 ...
0
votes
1answer
224 views

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 ...