Questions tagged [powertop]
powertop is a script for reducing power consumption on laptops and desktops running Ubuntu.
87
questions
1
vote
0
answers
291
views
Dragon RTL8125BG C-states
Has anyone had success with C-states in powertop on the RTL8125?
I try to use it with Unraid 6.11.5/Ubuntu 22.04 but only on the Realtek NIC I can't get past C3.
1
vote
0
answers
100
views
Powertop reports wifi at 100% power use, even when it is switched off
I switched off the WiFi of my TigerLake laptop, and on top of that, also put it in Airplane mode, to be completely sure it is off.
Still, powertop keeps reporting a 100% usage stat for Wifi.
Why is ...
- 2,319
1
vote
0
answers
79
views
Kernel configuration settings not applied by systemd script (making the recommandation of powertop permanent)
Problem statement
I try to make the tuning recommandations provided by PowerTop permanent by writing kernel settings in a script executed in a oneshot systemd service. Scripts contains line such as
[.....
- 111
0
votes
2
answers
305
views
gnome-power-manager Shows Only Wireless Mouse Battery, no AC or Other Devices
I'm diagnosing potential power issues with a Ubuntu 20.04 workstation and just attempted to interact with Power Statistics, a/k/a gnome-power-manager.
Unfortunately, the only hardware object that ...
- 469
0
votes
0
answers
92
views
Nvidia consuming power
I discovered that NVIDIA is consuming 95% of the battery-life alone & i want to deactivate it or prevent it from working entirely on my PC.
Solutions I tried:
Purging NVIDIA entirely. (no ...
- 47
0
votes
1
answer
80
views
How to mitigate the lack of suspend-to-ram when idle powerdraw is too high
My Supermicro X11-SRM-F lacks support for suspend-to-ram, as can be seen from the kernel reporting: ACPI: (supports S0 S4 S5) and has been confirmed by Supermicro support.
I used a kill-a-watt meter ...
- 2,319
1
vote
1
answer
2k
views
Ubuntu 20.10 dbs_work_handler/tick_sched_timer too much power (bluetooth?)
Running a Asus G14 (Ryzen 9) Zephyrus and Ubuntu 20.10 and noticed dbs_work_handler using 2.5W and tick_sched_timer using 1.5W went just idling. Searching around some have mentioned it maybe the ...
- 11
1
vote
1
answer
654
views
kernel is spewing ata link up messages every second
These messages are appended every 1 second:
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata3.00: configured for UDMA/33
I think it may be related to me letting ...
0
votes
0
answers
1k
views
No Package C-states (powertop) Dell XPS 15 9570
I recently made the switch from Windows to Linux after the discrete graphics chip (nVidia 1050Ti) died.
The overall experience is very pleasant as Linux is highly customizable, snapy and less resource ...
- 1
1
vote
0
answers
2k
views
Apply powertop settings
On the powertop page of archlinux wiki it says:
There are two ways to automatically apply the suggested settings:
Recommended: You can apply these settings at boot by using module parameters, udev ...
- 1,018
0
votes
1
answer
1k
views
how to avoid powertop settings to roll back automatically
I'm using powertop and tlp in ubuntu 19.10 in my thinkpad x380 yoga.
The battery drains pretty quick so I'm using powertop and tlp to monitor and manage power consumption.
The problem is that every ...
- 647
1
vote
1
answer
1k
views
Bug in kernel 5.3 - no GPU powersaving (i915 module has no RC6 powerstate)
My laptop shows in powertop (idle tab) GPU power on 100%. RC6 or other energy saving states 0%.
I check my old laptop - it was different there. Reading about it I found the parameter enable_rc6.
It ...
- 475
2
votes
1
answer
617
views
sudoers doesn't work
I added powertop to /etc/sudoers (sudo visudo) but it doesn't work. I checked all possible problems I can imagine. What did I missed?
user@ellie:~$ whoami
user
user@ellie:~$ groups
user adm cdrom ...
- 475
3
votes
2
answers
7k
views
Powertop autotune error - Cannot load from file
I'm trying to perform --auto-tune in powertop, however I get the following error
Cannot load from file /var/cache/powertop/saved_parameters.powertop
If I browse to that directory the file does ...
- 515
0
votes
1
answer
1k
views
Help identifying "unknown USB device" in powertop
I was looking at powertop yesterday when I noticed the following entry in the tunables tab:
Good Autosuspend for unknown USB device 1-4 (8087:0029)
I would like to identify what this "...
- 101
7
votes
1
answer
3k
views
Ubuntu 19.04 high power consumption with intel integrated graphics
Aero 17 laptop w/ 9750H processor, nvidia gtx 1660ti, 1080P 144hz monitor
Windows 10 reports 8 hours of battery life
Ubuntu 19.04 reports 2 hours
In Ubuntu 19.04, reporting sky-high 30-40 watt ...
- 91
11
votes
1
answer
17k
views
PowerTOP "cpufreq_stats failed" and "Devfreq not enabled" running --auto-tone
Basically, I'm trying to reduce the thermals of an Ubuntu install and trying everything. Quiet as can be in Windows 10 except for gaming, as it should be; Ubuntu fans rev up to 75-100% doing simple ...
- 447
2
votes
1
answer
518
views
Buggy powersave in Bionic 18.04
I'm having problems with the powersave mode, I hope someone can help ;D
PREVIEW INFO:
I have installed: tlp, powertop, nvidia privative drivers
When I start the laptop on battery mode the graphic ...
- 129
2
votes
1
answer
172
views
16.04 kernel Update breaks power saving - how to fix?
I used to have 7-9 hours of battery life on my system running 16.04LTS. But, recently, I noticed battery life halving to around 4.5 hours. It seems this has been going on since around May '18.
...
- 303
0
votes
2
answers
4k
views
Why is Ubuntu 18.04 battery life superior to Lubuntu 18.04 in a Dell 7577
I'm struggling with the battery life of this laptop while running Lubuntu. In Windows 10 I'm able to get up to 9.5 hours of life in power save mode. But in Lubuntu 100% charge lasts about 2.5 hours.
...
- 141
2
votes
2
answers
9k
views
Can't "auto tune" Powertop
I installed powertop and tried to run --auto-tune as I've seen that seems to be the suggested options, however I'm pretty sure it's not actually running.
I'm on a fresh Ubuntu installation and I'm ...
1
vote
0
answers
693
views
Thinkpad W540: high power consumption (even when idle)
I use Ubuntu 16.04 with kernel 4.4.0-53-generic and i3-wm on my
Thinkpad W540 20BH with i7-4600M and Nvidia Quadro K2100
I disabled the discrete GPU via acpi_call to save battery
However the ...
- 63
0
votes
0
answers
236
views
Power consumption problem
Always when I return from suspend and check with powertop my consumption is about 16W.
If I put the recharge and take It out the consumption goes to 8W.
I am using kubuntu 17.10 with tlp and ...
- 21
2
votes
0
answers
185
views
Power saving control of CPU
My notebok is Asus U36SD and I've upgraded from 12.04 to 16.04. There was the Jupiter program in Ubuntu 12.04 which was able to drastically change the computer performance
- when set to powersave, ...
- 121
2
votes
0
answers
69
views
How to measure power consumed in each clock cycle in C (using ubuntu 16.04)?
I actually want to measure the power consumed while doing each 64 bit multiplications and additions on Intel i7-6700 processor. For that purpose I need to know power consumed per clock cycle , I'm ...
1
vote
1
answer
2k
views
PowerTop software
when i start sudo powertop --auto-tune i get message:
The file will be loaded after performing the minimum number of measurements (only with battery)//
how to fixed this?
ubuntu 16.04 LTS
- 11
2
votes
2
answers
1k
views
What is a good number of wakeups per second?
I currently am getting around 600 per second with just this one google chrome window and the terminal window running powertop--which seems too high (and I used to get about 1.5x more battery life out ...
- 121
1
vote
0
answers
2k
views
Power consumption on Dell XPS 15 9560 + Ubuntu 17.04 (dualboot)
I've installed Ubuntu (kernel 4.10.0-26-generic) on my Dell XPS 15 and so far everything is good. I made some low-hanging power consumption optimizations:
Disabled discrete Nvidia GPU
Installed TLP
...
- 121
4
votes
1
answer
872
views
systemd service unit fails on startup
I wanted to change certain powertop params on Ubuntu 17.04 startup, therefore I created a shell script in /usr/sbin/ and made it executable:
#!/bin/sh
echo 'min_power' > '/sys/class/scsi_host/...
- 41
4
votes
1
answer
201
views
Fingerprint Reader Power Consumption
I have fingerprint-gui working in Ubuntu 16.04 on my Lenovo x260. The problem is that powertop indicates that it is constantly using about 50-100mW of power even when I am logged in and it should be ...
- 91
1
vote
0
answers
247
views
How to disable wireless mouse dongle when not in use
I am using Ubuntu 14.04 and have a Lenovo 500 Wireless Keyboard mouse combo. This comes with a small bluetooth dongle that I need to plug into the USB port.
I am only using this when in office but ...
- 121
3
votes
1
answer
1k
views
USB Device Power Usage
I've been searching and messing around with powertop, tlp, and general power settings for a few days now and just can't seem to get rid of this ridiculous power drainage from a usb device. (Color ...
0
votes
0
answers
3k
views
How to save more power on top of Powertop and TLP?
I have TLP and Powertop to run at boot (with autotune for powertop set at boot as well). However, I still get abysmal battery life -- 2 hours usually at max when I'm using Eclipse or the internet -- ...
user633246
0
votes
0
answers
978
views
Monitor Intel package states with intel_pstate driver
Is there a way to monitor Intel package states with intel_pstate driver?
I'm running kernel 4.8.0-1-amd64 with intel_pstate driver on i7-6700k.
powertop reports following error:
modprobe ...
- 131
2
votes
3
answers
7k
views
How to change the value of dirty_writeback_centisecs?
I would like to change the value of dirty_writeback_centisecs. After seeing the Tunables in Powertop, there seems to be a problem with the value which is 6000 which is considered to be bad by Powertop....
- 411
1
vote
1
answer
990
views
How to understand frequency in powertop [closed]
I attached a screenshot from powertop while playing a single video from youtube (360p). I do not know how to understand this page exactly, but from what I see in GHz, I guess it is under high load. My ...
- 323
2
votes
2
answers
3k
views
Ubuntu 16.04 Skylake overheating
I recently bought a laptop boarding a skylake i7-6700hq processor, and I managed to install Ubuntu 16.04, however, I noticed that the laptop was overheating resulting to a very short battery life ...
- 51
10
votes
1
answer
945
views
How to determine identity of obscure `nic:br-` devices in powertop?
Currently, the powertop output from my computer (a thinkpad with skylake i7-6600U running ubuntu 16.04) looks like
The battery reports a discharge rate of 6.90 W
The estimated remaining time is 2 ...
- 201
9
votes
3
answers
8k
views
What are ms/s units in Powertop and how can I get power consumption in watts?
When I use the powertop command I get the following result:
Summary: 1089.0 wakeups/second, 0.0 GPU ops/seconds, 0.0 VFS ops/sec and 27.2% CPU use
Usage Events/s Category ...
- 91
2
votes
2
answers
2k
views
How to resolve "unknown op" error with Powertop on Ubuntu 16.04?
when I type:
sudo powertop
I got the following error:
unknown op '{'
Model-specific registers (MSR) not found (try enabling CONFIG_X86_MSR).
read_msr ...
1
vote
1
answer
417
views
How do I activate Powertop only when my laptop is running on the battery?
I don't want powertop to reduce performance while my laptop is plugged in.
3
votes
1
answer
2k
views
Intel 7260 bluetooth device (usb-device-8087-07dc) at 100% usage
My Intel 7260 bluetooth device is constanly draining battery. As per powertop:
13.9 W 100.0% Device USB device: usb-device-8087-07dc
I have both bluetooth and NFC ...
- 558
1
vote
1
answer
2k
views
PowerTOP issue with fresh 16.04 install on ThinkPad E555
Here's what happened when I tried to set optimum settings after installing PowerTOP:
Reading package lists ... Done
Dependency tree.
Status information can be read .... Done
Suggested packages:
...
- 2,313
0
votes
1
answer
871
views
Wrong measurements obtained in powertop
so i was wondering why power gives 0mW for all the processes that are running in my laptop , even thought some of them needs a lot of computation, here's a screenshot of the output of powertop, thank ...
8
votes
3
answers
11k
views
`powertop --auto-tune` without messing with USB and touchpad
I like powertop --auto-tune because the speakers of my laptop are soughing when not being used and powertop disables the speakers completely when they're not used, stopping the noise.
However, my ...
- 5,610
0
votes
1
answer
5k
views
how to undo powertop autotune settings?
I installed powertop in order to increase my laptop battery life. However, after the first usage I wasn't able to shut down my laptop. And later some strange things started to happen: laptop suddenly ...
- 1,481
2
votes
4
answers
3k
views
Powertop systemd service failed to load
After my installing of powertop and calibrating it, I create systemd service with following text:
[Unit]
Description=Powertop tunings
[Service]
Type=oneshot
ExecStart=/usr/bin/powertop --auto-tune
[...
- 21
2
votes
1
answer
2k
views
¨USB device: card reader¨ is draining the battery even if it is not used
I`ve installed Ubuntu on my MacBook Pro Retina 13 and I am trying to get the best battery life possible. I'm using PowerTop to manage what needs to be changed and pm-utils to save power.
PowerTop ...
- 21
4
votes
1
answer
2k
views
High number of interrupts on Ubuntu 15.04 on Dell XPS 13 2015 (9343)
In powertop I noticed a high number of interrupts 'INT3432', which I think would be either the touchpad or sound card.
I am concerned on the effect on the power consumption and battery life.
FYI I ...
- 41
2
votes
0
answers
1k
views
Card reader draining power on MacBook running 14.04
I'm using 14.04 on a MacBook Air 5,2 (mid 2012, 13").
I just recently noticed powertop listing the built-in card reader to drain massive amounts of power:
Power est. Usage Device name
6.68 W ...
- 198