Power management refers to the capability of a computer or its operating system to regulate its power usage. This can help achieve cooler and quieter operation, longer-lasting electrical components, and for laptops, longer battery life.

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Custom Windows Power Plan Issue

When you create a custom power plan in Windows 10 using one of the existing power plans (High Performance, Balanced, Power Saver) as a template, are those power plan "templates" simply a grouping of ...
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Screen brightness in Power Plan setting keeps resetting

I have an HP Probook 650 with Windows 7 Professional. In the Power Plans, the default is CentraStage which works well for my needs except the screen brightness setting, which doesn't seem to "stick" ...
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19 views

Problems suspending notebook

I have problems suspending and shutting down Lenovo G560. Suspend problem: after suspending neither power indicator, nor power button begin to blink. Capslock and Numlock leds don't turn off after I ...
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2answers
25 views

How can I disable power saving for all devices in Device Manager?

If Windows (I am running Win 8.1) is installed on a laptop, the Device Manager will include Power Management properties, including an option to allow the computer to turn off this device to save ...
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14 views

How to find out which softwares are preventing my Windows to sleep?

I have a different workflow when working with my PC. I only shutdown my PC one time a day. Rest of the time I'm away from my PC, it's either locked or I turn off the monitor to comsume less power. I ...
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24 views

Disadvantages of enabling ErP in BIOS?

While searching for a solution to an external hard drive's LED continuing to blink after shutting down the system, I came across the 'ErP Enabled' setting in my BIOS. I've set ErP to "Enabled ...
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28 views

Computer's power consumption got really high after upgrading to Windows 10

I have an HP Envy dv7 laptop (750GB HDD, 8GB RAM, 1600x900 Display). I used to work on Windows 8.1 and the battery used to serve me for 3-4 hours even when using programs that need a lot of processing ...
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1answer
22 views

Issue with Windows 10 Lock Screen Shutdown

I have built a Windows 10 Enterprise image that is being deployed to a combination slate/laptop device (Dell Inspiron 11 - 3153). I am specifying the power settings through SCCM 2012 R2. I have built ...
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24 views

PC turn on automatically at intermittent time

After I turn off my computer (or hibernate specifically) It turn on automatically. It seem not to happen regularly. (Or I think so). I tried to disable all scheduled tasks with "Autoruns" program, ...
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12 views

why is audiodg.exe interfering with power management?

I have an Intel Core i3-370M 2.40Ghz, running Windows 7, that is stuck at 2.4ghz. Months ago, the computer was almost completely silent. Today, the clock multiplier is stuck at x18 and the fan runs ...
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10 views

How to make logind act different when power line plugged-in or not?

I am using Arch Linux and use logind to handle acpi. There is only one acpi event HandleLidSwitch. When closing the lid I want my laptop to act differently based on the current power source. For ...
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36 views

Windows: unexpected power button behavior

The semantics of hardware power button is as simple as that: when it is ON it switches OFF, when it is OFF it switches ON. And now some UI geniuses have perverted even this function. When it is ON, ...
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58 views

Is there a way to “hack” the power options in Windows 10, e.g. change from to 100% instead of 60?

In this link is said There is nothing that a user needs to do manually, to maximize battery health on these batteries. For this reason, we don't provide any utility to manually manage battery ...
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34 views

How to save battery life for notebooks always connected to the AC grid

I have a Toshiba Satellite L50-A-161 with a Li-ion battery. The removal of my Toshiba battery is quite complicated: it is necessary to open the case unscrewing 14 screws and remove the dvd unit. The ...
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1answer
73 views

NVIDIA Optimus: Find out what is using my laptop's discrete GPU

My laptop has NVIDIA Optimus technology, which seamlessly switches between the integrated graphics and NVIDIA discrete GPU to provide an optimal balance between battery life and performance. There is ...
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1answer
29 views

How can I make my laptop hibernate/sleep when the charger is removed?

My laptop doesn't have battery. I'm using it with direct power supply. So the problem is that whenever the electricity goes off or when the charger is unplugged, my laptop shuts down and my work is ...
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24 views

Setting Closing Lid action via Powercfg command not working

I want to be able have closing the lid do nothing using a batch file. I see this post change lid option and have followed it but closing the lid still puts laptop to sleep. I am using command powercfg ...
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16 views

Surface pro 3 weaker processing while plugged in

I am encountering a strange issue in that my Surface Pro 3 seems to run more slowly (more lag in games) when plugged in, and I was wondering if anyone on here might have experienced a similar issue, ...
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27 views

Disable “Turn off Display After…” in Windows 7 Enterprise

Apologies if this query isn't very clear, it's my first time posting. I'm on a laptop as a user on Windows 7 Enterprise. I have full admin rights on my machine and the network but still cannot figure ...
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9 views

brightness settings gone, how do I take it back?

I have ACER laptop with Windows 8, after I change it to Windows 7, my screen brightness controller are gone (Not in power options). I tried going to the device manager, then I click monitor and it ...
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31 views

Laptop power plan keeps going into 'Power Saver' mode

My Dell Vostro laptop keeps switching to Power Save mode whenever its on battery. It happens due to a custom Dell Energy Save mode program. The same can be disabled by killing the program from Task ...
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236 views

windows 10 restarts after waking from sleep mode

I'm using windows 10 on My asus ROG g750Jw. My lap doesn't wake up from sleep mode.any ideas and fixes much appreciated. I've attached the energy report below Power Efficiency Diagnostics Report ...
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49 views

How to power on ThinkPad T440P from usb keyboard?

How can a ThinkPad T440P be powered on from a USB keyboard? I haven't found any settings in the BIOS for it. I have the keyboard, mouse and 27" monitor with displayport. I use it as a desktop and I ...
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56 views

How to have my laptop go to sleep when unplugged while lid shut? (Don't want it to go to sleep when closing lid and plugged in)

I've got a Lenovo Yoga 2 11 running Windows 10. I currently have it set to stay awake when the lid is closed and it is plugged in, and that is working exactly as intended. However, if the lid is ...
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1answer
74 views

How should you set power management settings in Windows 10?

I've noticed since switching to Windows 10 Professional (clean install) that the power settings seem to be causing some odd issues. I've noticed that even though the system is set to never hibernate ...
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166 views

Computer doesn't shut down, hibernate or sleep

After the Windows 10 upgrade my PC (HP Pavilion 15n-000sq) won't shut down, hibernate or even sleep. Whenever I choose one of these it just goes to a black screen but everything is still running and ...
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59 views

How to setup the laptop behavior when opening the LID

I'm using Windows 7 When i set my laptop to sleep or hibernate. But when i open the lid the laptop start automatically : this cause a problem for me because when i package the laptop in my hand bag , ...
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38 views

is it possible to “reset” the counting mechanism of power manager for battery maintenance (Lenovo)

Lenovo thinkpad provides a power manager software that allows for battery gauge reset. It's a hunch but it seems that there is a counting mechanism every time I "perform reset". In early days when I ...
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14 views

HDD in laptop's optical bay spins down too soon

I have bought a caddy to place in the optical bay of my laptop, in order to use the original HDD provided with the computer, since I got a way more performant but smaller SSD lodged in the primary ...
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17 views

Lenovo X201 battery management shuts down prematurely

Something is not working with the Lenovo Power Manager software/hardware on my X201T tablet. The computer always shuts down when I am on battery and still have 1.5-2 Hours left of battery life ...
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1answer
27 views

How can we know that our laptop model has capabiliy to protect against overcharging the battery, and is able to set preferences?

How can I know that my laptop model has the ability to protect against overcharging the battery, and whether it has a menu to setup the preferences? Example: this is my model, Lenovo G40 I am ...
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3answers
69 views

Why upscale CPUs consumes more power even when idle?

A core i7 have a tdp around 80W and whereas a N3150 is 6W. My question is what prevents founders to build CPUs with a proportionate consumption with performance. Said differntly, why can I not have ...
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73 views

Lock when power button is pressed in Windows 8

I have a surface, and it's getting very irritating when it sleeps when I press the power button. Since I use it mostly as a tablet, I'd like it to behave as one, and lock when I press power.
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193 views

Laptop wakes up from sleep every several hours

I have a new ASUS Zenbook UX305. OS: Windows 10 Home I've figured out that my laptop wakes up from sleep during the night, so i reviewed the event viewer and found out that it happens about 3-4 times ...
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27 views

Timing out of computer screen

How do I keep the screen from timing out? When I play something on the computer, such as a film or music, the screen times out. How can I extend the active view of the image? I want the screen to ...
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1answer
448 views

Surface Pro 4 doesn't have Processor Power Management options

I just got a Surface Pro 4, and did all the latest updates (firmware updates and 1511). I went into Power Options, created a "Power Saver" power plan, then went into advanced power options to adjust ...
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296 views

How can I figure out what's keeping my monitors from turning off?

For some reason my monitors won't turn off, and the screensaver never comes on - either in Windows, or at the lock screen. I'm on a desktop with two monitors, using an up to date Windows 8.1, drivers, ...
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23 views

webserver on linux debian down due to power settings (I guess)

I want my webserver to be always operative, instead to find it down after I leave the computer for about 1 hour I am runninng Debian linux through virtualbox in a Yosemite host, what I did this ...
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16 views

Notebook - Quickly change power-plan

On my private Notebook (Dell Inspiron 5000 - Windows 8.1) I could change my power-plans when clicking on the taskbar icon. I could choose between all existing power-plans. Now on Windows 10 I can ...
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42 views

Unable to change laptop power options

OS: Windows 7 (32-bit) Some time back, I had tried setting the default power plan as 'Balanced', by downloading and doing some changes in the registry. Now I am unable to change the power options, ...
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26 views

Enter Key brings up Battery/Power Manager: Lenovo 530-W7 64bit

Sometimes Windows acts strangely after a few days of usage without a shutdown. Now, hitting the Enter key while in MS.Work or other application, defaults to starting and brining up the Lenovo ...
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1answer
95 views

Programmatically read “Turn off hard disk after” value in Windows

I'm looking for a way to programmatically read the current setting of the "Turn off hard disk after" value, located in the advanced power options in Windows 7 and later. I'm aware of the powercfg ...
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19 views

Make laptop turn on automatically

I have a laptop of IBM X41. I want to use it in a project in making in which it will be used as kiosk. If power goes out and comes back I have to press the power button to turn the computer back on. ...
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10 views

Possible to set power plan with out affecting brightness?

It is a bit similar to this question, although it don't have a good answer. However I would like to know if this is possible between different power plan, rather than plugged and unplugged.
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1answer
31 views

Windows 7 Power plan not listening

I'm trying to fix my friends windows 7 computer. After about 30-45 minutes the computer screen goes black only when not in use. I have reset the power/sleep setting to default, deleted any custom ...
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26 views

Windows 10 USB Drive Not Sleep Stays On, i.e the Red Data Light and Stays Spooled Up

I have a Masscool brand USB drive, affectionately called the 8-track, that I swap 4TB HDDs periodically for overnight daily backups. Power options are set to power off HDDs after 10 minutes. The task ...
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27 views

pc powers on after screen going off

so, i have the following configuration: a pc with a gigabyte gtx 9xx video card, tied through hdmi to a samsung smart tv. pc is running windows 10 problem is, recently (can't figure exactly since ...
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895 views

Windows 10 changes power management settings

I have a Dell Latitude E5450 running windows 10. I have some problems with my fingerprint reader. Now and then, after a reboot or suspend, the fingerprint reader is not working. Each time when that ...
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52 views

Can't disable sleep in Windows

Running Surface Pro 1, Windows 10. I have selected the high performance power management plan and set all sleep-related settings to never, disabled password entry on logon screen, set the hidden ...
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Is a Windows Power Plan a sum of its options?

For instance, if you were to configure Power Saver and High Performance with identical options, would that result in identical performance profiles? Or are there differences not listed in the ...