Systems to manage power consumption, such as system suspension and hibernation, CPU speed adjustment, disk spindown, battery usage monitoring, …

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Strange things happen when I close my laptop lid

I recently bought a new HP Spectre x360 laptop and installed Linux (Ubuntu 16.04 LTS 64 bit) for the first time. I have noticed a few small bugs but something very strange happens when I shut the ...
1
vote
1answer
309 views

upowerd consuming 100% cpu

upowerd is consuming nearly 100% of CPU. I am currently affected by this issue on both a Lenovo Thinkpad E520 and on a desktop PC running Core i7 and Asus Z170a motherboard. Both run Kubuntu 15.10. ...
1
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3answers
85 views

How to Distribute Computing of `tar czf` for Longer Time?

My systems go under heavy load when I run sudo tar czf /media/masi/ntfsDisc/backup_home.tar.gz $HOME/ Fans goes to max etc. I would like to find a better balance between computing and power ...
0
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0answers
38 views

HP server not responding after power failure [on hold]

A long power cut happened and I have one server with a weird behavior. It's an HP DL145 without warranty :/ Impossible to make work a VGA port or any USB port (I tried USB ports, front and back), ...
1
vote
1answer
2k views

No gnome-power-manager command but it is installed on Arch

I'm running latest Arch, have GNOME and Fluxbox and my main windows manager is Fluxbox. I wanted to manage my power settings in Fluxbox and i added gnome-power-manager in startup but is says there isn'...
0
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2answers
66 views

Detect power loss

Is it possible to detect loss of power on a laptop/desktop without an UPS? Obviously a computer without an UPS will shutdown at least almost immediately after being unplugged/having its battery ...
14
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9answers
8k views

How can I get an alert when my battery is about to die in Linux Mint?

This happens to me more than I'd like to admit, but sometimes I don't notice the power getting low since it only shows up in my status bar, then the computer just quits. I'd like a big alert that ...
0
votes
0answers
14 views

Linux disconnects monitor when it goes to sleep

When my LG W2442PE monitor goes to sleep, then -- I think -- Debian 8 considers it gone completely (as if it was unplugged), and Gnome reconfigures itself to use only one screen, the laptop internal ...
1
vote
1answer
21 views

rtcwake not working on Ubuntu 14.04 installed on MacBook Air (mid 2012)

I have installed Ubuntu 14.04 GNU/Linux on a MacBook Air (mid 2012). I'm trying to use rtcwake to implement a "delayed hibernation from suspend", as in https://askubuntu.com/a/33192 (the particular ...
4
votes
2answers
57 views

Explanation of file - org.freedesktop.login1.policy

I am using Ubuntu 16.04. There is a file located at /usr/share/polkit-1/actions/org.freedesktop.login1.policy which seems to control the permissions regarding shutdown/suspend/hibernate options. ...
18
votes
2answers
4k views

How do I make my laptop sleep when it reaches some low battery threshold?

I'm using Ubuntu, but I have i3 as my window manager. Under i3, when my battery reaches 0%, the computer will just abruptly shut down, no warning or anything. Is there a simple script or ...
1
vote
0answers
31 views

Custom command when pressing Power Button on GNOME 3.20

I'm using GNOME 3.20 (on Archlinux, with systemd and no acpid). Since GNOME only allows three options as actions for when pressing the power button (hibernate, sleep, or nothing), i'd like to execute ...
12
votes
1answer
1k views

Monitor connected via displayport to DVI adapter won't sleep properly

I have a monitor connected to my machine that displays odd behavior when entering power saving sleep mode. When entering sleep, the monitor will alternate between blanking and displaying a default ...
1
vote
0answers
16 views

Mint + Kernel 4.5.4: laptop loses suspend state when unplugged

I'm using Linux Mint 17.3 on a newish Asus laptop with Mate desktop. To get the Nvidia graphics and Elan touchpad both to work, I installed the 4.5.4 Linux kernel. I've pretty much got everything ...
0
votes
1answer
229 views

How to switch power save mode between PS Poll and UAPSD (WMM) modes in CLI?

I'm trying to figure out if there are any chances to switch on/off U-APSD power save mode at my laptop. Currently I found a command to switch power save mode on/off: root@host # iw dev wlan3 set ...
6
votes
2answers
4k views

“Memory corruption detected in low memory” kernel messages?

I have some memory corruption detected in low memory messages. I have read about it here, but I'm afraid I can't really make anything out of the discussion. It does indeed happen when I suspend/resume,...
1
vote
2answers
46 views

Can lower swappiness speed up wake-up from hibernate?

Does anyone use swap? what is your swapiness value? Mine are 60 $ cat /proc/sys/vm/swappiness I use hibernation. It worked but slow to load when wake-up.. If I tune swappiness from 60 to 10. Does ...
0
votes
1answer
133 views

Powerbutton freezes applications

I've just installed Debian Jessie and I'm trying to get systemd to do basic power management. systemctl suspend and systemctl hibernate works well to suspend and hibernate the system. Now, I want ...
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3answers
16k views
1
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0answers
12 views

How can I run a command if my screen changes state from standby to on and vice versa

I'm running linux mint 17.3. I have a backlight attached to my screens which are controlable via usb-serial. I would like to turn off the backlight automatically when the screens go to standby and ...
0
votes
1answer
457 views

How to give more power to a USB device (error -110)?

I’m trying to mount an external hard drive (2.5", USB, no separate power supply) on Debian 7, but it gives me (in dmesg as well as when trying to boot with the device connected) errors like: ...
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vote
0answers
41 views

Force xfce4-power-manager to suspend

I would like my power button to suspend - no questions asked. xfce4-power-manager would like my power button to suspend - but only after I have been asked: An application is currently disabling ...
3
votes
1answer
424 views

Can I read settings in BIOS without restarting Ubuntu

Can I read my bios settings under Ubuntu without restarting? For example, I'd like to check the sleep settings in my BIOS, S3 (suspend) or S4 (hibernate). As of now, I can't hibernate, and am ...
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vote
1answer
47 views

Is possible not to turn off an SSD in suspend/sleep/S3?

I'd like to keep the SSD (or HDD, it doesn't really matter though) powered on, even if I suspend (S3) the computer and prevent it from turning off during the sleep time. Is it somehow possible to ...
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vote
0answers
14 views

On LMDE 2, why is my screen dimming after only a few seconds?

I'm running LMDE with Cinnamon 2.4.7 and I cannot get the screen to stay on (undimmed) for longer than a few seconds of inactivity. What setting am I missing?
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1answer
349 views

Debian 8 hibernate and suspend not working

I've read these two official documentations on the matter: https://wiki.debian.org/Hibernation#Suspend_and_hibernate_configuration_in_Debian_Jessie https://wiki.debian.org/SystemdSuspendSedation I've ...
11
votes
2answers
740 views

Screen brightness reverts to max after returning from `xset dpms` display suspend

I'm running the openbox window manager and using this line in my autostart.sh to control display power management: xset dpms 0 60 0 This works nicely, causing the display to suspend after 60 ...
21
votes
3answers
33k views

How to disable USB autosuspend on kernel 3.7.10 or above?

I've updated my HTPC from kernel 3.7.10 to 3.10.7 and it seems CONFIG_USB_SUSPEND is now gone from the kernel options and included in PM. The main problem I'm facing is that I have an external HDD ...
2
votes
2answers
57 views

Is the power management on different linux distributions the same?

I was wondering if the power management is the same across all linux distros? If no, what are the specific differences? I.e. can changing the distro possibly solve power management issues? Background:...
0
votes
1answer
108 views

Better battery saver linux between ubuntu mate and xubuntu

I have tried xubuntu, lubuntu and ubuntu mate. I found xubuntu and ubuntu mate desktop environment good. My main concern is battery saving. Which saves better battery between Ubuntu mate and xubuntu
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vote
1answer
159 views

How to turn off Wireless power management permanently

In Linux Mint 17.3 iwconfig says the power management of wireless card is turned on. I want to turn it off permanently. sudo iwconfig wlan0 power off works, until I reboot the laptop. I read some ...
3
votes
3answers
399 views

Switch off display and Lock screen in Xfce power manager when laptop lid is closed?

I have a Dell XPS 13 (2015 model), and I'm using Ubuntu 15.10 with Xmonad. I have xfce4-power-manager running and gnome-screensaver is used to lock the screen. In the settings dialog of xfce4-power-...
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vote
1answer
89 views

Does Powersave Mode on the CPU help at all to save power?

I use indicator-cpufreq with Cinnamon to control my CPU-usage and save power, as my battery life has been running low. So, I use indicator-cpufreq to put my CPU in powersave mode. However, I have this ...
3
votes
2answers
2k views

Shutdown my (backup) hard disk on Linux when I don't use it

I have a hard disk in my computer that I use to make backups of my data. I do not use this disk otherwise. How can I stop this disk from spinning once my backup is finished? Also how would I make it ...
0
votes
1answer
174 views

Most power efficiend linux distribution for laptops [closed]

I have done through lots and lots of online resources to learn about power management techniques in linux mint. Suggestions were using power top, laptop mode kind of methods but doesn't help. Most ...
0
votes
1answer
564 views

Trouble changing backlight brightness (/sys/class/backlight folder empty)

I have a small embedded system that I am working on that needs to be able to reduce its brightness for power saving reasons. The screen is connected by LVDS with separate Inverter Power Output ...
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vote
0answers
188 views

USB ports do not wake up from suspend to RAM

I have an AMD Athlon 5350 (desktop, not a notebook) and recently upgraded from openSUSE 13.2 to Tumbleweed (openSUSE's rolling release). After that I gave suspend to RAM another try after it had just ...
5
votes
0answers
123 views

FreeBSD throttle cpu clock on high temperature

I'm using a laptop with bad cooling system, so my CPU sometimes hits very high temperature, and linux kernel is able to throttle cpu clock to cool it as I can see in dmesg: [22612.245243] CPU3: Core ...
1
vote
0answers
26 views

Run script on Gnome 3 suspend

I need to run a script on Gnome's standard suspend action (via top-right taskbar menu item, with Alt key pressed) Looks like Gnome doesn't use pm-utils, so I have no idea where to put my script
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0answers
58 views

Reduce CPU wakeups by cinnamon and i915

In order to reduce my notebook's power consumption I am using PowerTOP 2.5. hardware: Thinkpad W540 os: Linux Mint 17.3 Rosa kernel: 3.16.0-38-generic I noticed that cinnamon and i915 are the ...
1
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2answers
47 views

Running applications depending on battery or charging

What are good program or script solutions to run specific applications depending on whether the laptop is running on battery or charging? In order to conserve battery, I automatically want to stop ...
1
vote
1answer
125 views

How to disable Wifi Power Save on Kali Linux

I am running kali with virtualbox and my wifi receiver is a usb adapter which is Asus N10 Nano. I made the settings on virtualbox for making the vb recognize my usb wifi adapter. It works but after ...
1
vote
1answer
50 views

What is the power dissipation of the CPU and how does it work?

I'm looking into TLP and there is this setting that I don't know what does it do: # Set Intel P-state performance: 0..100 (%) # Limit the max/min P-state to control the power dissipation of the CPU. #...
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0answers
32 views

Why does my Debian desktop no longer power off when told to? [closed]

sudo poweroff and sudo shutdown -h now used to result in my machine entering the shutdown run level and powering down. These days the machine goes through the shutdown procedure but the power is ...
1
vote
0answers
59 views

Battery never stops charging!

I have a Manjaro Xfce latest version. My laptop is a Lenovo Z500. I've recently noticed that my batter is always at %99 and keeps on charging. Is there a way to make it stop charging at 99%, or ...
10
votes
2answers
9k views

Eject / safely remove vs umount

I'm using Ubuntu 12.04, and when I rigth click on a my flash drive icon (in the Unity left bar) I get two options that have me confused: eject and safely remove. The closer I came to answer was this ...
3
votes
1answer
26 views

Preventing battery from constant charging in Ultrabook

I'm running Debian Jessie (64-bit) on a newly-acquired Samsung Ultrabook NP900X3E, so far everything's working as it's supposed to. However, the battery life is okay, but not great. Therefore, I ...
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0answers
9 views

Phone battery charging

Smartphone's battery charges when it is linked to an USB port. Is there a way to make the process faster by modifying some parameters in Linux?
7
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3answers
2k views

Gnome 3: how to set power button to shutdown instead of suspend?

I am using GNOME 3.18.1 on Arch Linux 4.2.5-1-ARCH x86_64 on a Dell E6530 laptop. Since I installed this OS years ago, the power button on my laptop has always led my OS to completely power down. ...
5
votes
1answer
149 views

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 ...