Questions tagged [energy-saving]

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How to disable screen unlock on mouse move

I have an openSUSE Leap 15.2 KDE desktop which runs 24/7 but the screen turns on every time my cat jumps on the table :( (: That's why I would like to turn on the screen only on keyboard interaction ...
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16 views

Is there a global set of energy saving options, or does every local user has their own?

On our family PC, there are usually several people logged in concurrently, and people switch between accounts without explicitly logging out. I recently noticed that the PC does not seem to go into ...
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36 views

Energy saving in Windows doesn't work

I have problems with the energy saving in Windows 10. powercfg.exe /request doesn't show a problem. powercfg.exe /devicequery doesn't list a device (I removed all). I removed the energy saving plan ...
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1answer
45 views

Windows 10 energy saving mode without power

Until a recent Windows 10 update I have been used to putting my PC into energy saving mode instead of shuting it down. This was to keep all the opened programs and not having to open everything again ...
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34 views

DRAM Self-Refresh not the Lowest Power Mode

I have a DDR3L Samsung DRAM on my Laptop. Based on page 23 of its datasheet, IDD6 or the Self-Refresh current is much higher than IDD2P0, IDD2P1 and IDD3P, which are the Precharge/Active Power-Down ...
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78 views

Does it require less electricity to hold a zero bit in RAM than a one bit? [closed]

Someone I know posited an idea that I instinctively think (know?) cannot be true, but I can't seem to figure out how to explain why not. The idea is based on the assumption that more electricity must ...
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140 views

Leaving computer monitor on (not standby) and lit overnight

How bad is it to leave an LED monitor lit and on overnight? It will not be in standby mode. The time frame is 6-12 hours of “on”-time, but this could be variable. To avoid burn in, the brightness ...
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1answer
3k views

Power management settings in Windows 10 (and BIOS)

I always found the power management settings and energy saving options very confusing since there are more than one. The first one being the dialog you can open from your taskbar. There is no ...
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43 views

How to stop audio changing from monitor to laptop when monitor is off

I have a DELL U2518D and speakers connected to the monitor. The audio uses the HDMI cable. So far so good, but when the monitor goes off (because of the energy saving feature) the audio is ...
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1answer
153 views

Disable screen shut off for specific software

I have a PC with windows 10 and use it for multiple purposes. One of them is monitoring a finances software — which doesn't need my input most of the time. I know there's a way to stop my screen from ...
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0answers
53 views

Monitors not waking up from hibernate on Linux (Fixed on Windows)

I'm having an issue with waking up my monitors from power saving mode on my Linux systems. First, I'd like to notice that I'm fairly new to Linux, and I'd really appreciate your help. I'm running ...
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6answers
139 views

Power consumption of online services

Bit of an odd question maybe, but I am considering setting up a server at home and I want to host a couple of websites, a nextcloud, and a plex server. My websites are pretty simple and this way I'll ...
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1answer
57 views

Monitoring my computer's energy's usage - is it too low?

My desktop computer is an i3-2100 with 1 DVD drive, 2 HDDs and 2 SSDs connected to it, as well as a CPU fan and a case fan. All of this is connected to my PC via extension cord (i.e. power bank), ...
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25 views

Strange behaviour when using Power Plans

I recently wondered why my Laptop seems to be very slow (this was a verly long time). So I downloaded CPU-Z to check my CPU and saw that ist Clock is just around 998 MHZ, however it should can run at ...
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1answer
49 views

Requesting the complete guide to lock down/password require windows 10 when inactive [closed]

My win 10 is set to start screen saver after 2 mins and put monitor to turn off monitor after 15 mins. Password is required on resume from screen saver. I want it to work for example incase I forgot ...
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2answers
239 views

win 10 screen lock password overridden when monitor auto sleep

My win 10 is set to start screen saver after 2 mins and put monitor to turn off monitor after 15 mins. Password is required on resume from screen saver. But the result I get if ignoring computer for ...
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3answers
4k views

cannot hibernate anymore (but standby)

for some reasons my Windows-10 desktop PC (HP) cannot hibernate anymore (but standby works fine). PS C:\WINDOWS\system32> shutdown /h Element nicht gefunden.(1168) (element not found 1168) ...
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1answer
36 views

I need to periodically power up the monitor

At work, I have a really bad monitor (generic trademark with unknown model/manufacturer) which sometimes goes randomly off. It is connected with a VGA cable (not HDMI). I believe that goes to some ...
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0answers
99 views

Is it possible to prevent Windows to reset many system settings to default after a major update (Fall Creators Update)?

I recently installed the Windows 10 Creators Update on many of my PCs, and as with previous "major" update releases, I noticed that many of the system settings, including things like: Energy options ...
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1answer
3k views

Does raising LCD monitor contrast increase energy usage?

I've got a Dell S23340M - an LCD monitor with an LED backlight, which has built-in options to adjust the brightness & contrast. The monitor features a nifty "Energy Usage" bar that changes as you ...
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1answer
91 views

What household electrical devices could serve as an appropriate Master for the CE Tech Energy Saving Surge Protector?

I am attempting to use the Energy Saving feature of this surge protector: http://www.homedepot.com/p/CE-TECH-4-ft-8-Outlet-Energy-Saving-Surge-Protector-HDC804GWH/205893722 Using my laptop as the ...
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1answer
2k views

btrfs-transacti writes to disk every 30 seconds

I'm running Ubuntu 16.04.2 LTS with btrfs on 4 8 TB Seagate drives in RAID 1. Every 30 seconds btrfs-transacti shows up in iotop with ca. 80 M/s for 15 seconds, even when the system is not used. The ...
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1answer
72 views

Can I turn internal storage hard disks on and off individually? [duplicate]

I'm considering building a new Windows-based work PC. Some of my work requires vast amounts of storage. Currently I'm serving that need by using a number of external USB drives. Given that I never ...
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3answers
27k views

Is there any reason *not* to enable 802.3az (Energy-Efficient Ethernet) on a switch?

I have a PoE+ switch (ZyXEL GS1100-8HP) that has a button on the front to toggle IEEE 802.3az compliance. I looked this up and found that it was a power management specification known as "Energy-...
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0answers
227 views

Windows 10 sleeps fine from menu, won't sleep from timeout

I have a power meter on a Windows 10 box. If I sleep from the menu or the power button, it drops down to about 3 watts. If I wait for a timeout (set at two minutes) it blanks the screen but keeps ...
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2answers
140 views

Win 8.1 not going to sleep

I have searched quite a lot already but unfortunately didnt find any solution or hint yet. My problem is NOT that my computer starts/boots itself from standby mode. For this often discussed problem, ...
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2answers
1k views

Windows 10 keeps waking up at night, source unknown, what to do?

I have recently upgraded a Win7 Pro machine to Win10, and since that day, every few days, the computer wakes up at nicht, once at 3:30 in the morning, the other time at 2:30 in the morning. I already ...
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2answers
28k views

How to know how much electric power a laptop is consuming?

On a laptop charger adapter it is written '65 Watt'. When I am using that laptop plugged into an AC socket, does it mean that it consumes 65 watt per second? I think it actually depends on usage. ...
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1answer
2k views

Windows Power Options - Turn off the display - HDMI not saving energy

I recently purchased a BenQ GL2760H Monitor which has both HDMI/VGA/DVI inputs. I have a Dell Desktop with Window 7 which has a built-in Intel graphics card with just HDMI and VGA outputs. I also ...
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1answer
22k views

How to disable a plugged-in PCI-e graphic card on OS level? [duplicate]

I have a server running for which I want to have a possility to access it with a screen connected to VGA (very rarely, most of the time it's accessed via SSH). Therefore I have a PCI-e graphic cards ...
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1answer
379 views

Energy saving mode on startup in Windows 8.1

Everytime I start my Windows 8.1 system, the energy scheme is energysaving. Regardless of what I define as default, what was the last mode or whether a cable is plugged in or not. What can this be ...
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1answer
40 views

Is it possile to set time before windows disable device for energy saving purposes?

I have a tablet-pc with Windows 8 and dock keyboard. Windows disables dock keyboard after ~10 seconds of downtime by default. I want to increase that time to 60 seconds at least. Is it possible ...
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1answer
144 views

Why does unplugging my laptop from power reduce power consumption?

I want to save unneeded energy. Because of that, I changed my energy settings to power save mode. However, once I switch off the power supply for my laptop, the energy consumption and CPU tact goes ...
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1answer
94 views

Reasons to use adaptive and energy saving power plans

This is Question and Answer topic. After many years of using laptops, desktops and servers I asked myself - why adaptive and energy saving plans exist in desktop and server computers? Why would I use ...
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1answer
5k views

How can I enable the deep RC6 sleep states on an haswell architecture?

If you use iotopyou will see three sleep states. One is called RC6 and the other two are deep sleep states called RC6p and RC6pp. I read the modinfo i915 and saw that one can enable them by passing ...
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1answer
2k views

Wireless or wired LAN: Which consumes less power?

I have a printer that has Ethernet LAN and Wi-Fi WLAN. The printer is seldom used, so I'm interested in minimizing idle power consumption. My Wi-Fi AP is on anyway, so that's not interesting. My ...
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3answers
944 views

Windows 7 screen saver

We have a range of public Windows 7 computers. The computers are always on. When the users are logged on, the screen must not go off and the computer must not sleep. However, when the user ...
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3answers
8k views

How to prevent a laptop from going into sleep in Windows7 32bit in High Performance mode?

When my laptop running Win7 32bit is not used, it always goes into some kind of energy saving mode. The exact behaviour ist like this. When the computer is not use, the screen will go darker and when ...
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2answers
942 views

Does a direct scan without previewing a document save electricity?

My question is very simple and straight. I normally take a preview option while scanning a document in my scanner where sometimes I adjust its boundary and reduce the overall size of the document to ...
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1answer
167 views

Generate daily system load / uptime stats

In order to study my Mac system activities I want to visualize uptime, sleeptime and cpu average during each day. My first guess would be looking at the system logs, but I would like to know which ...
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10answers
77k views

Is it possible to power on/off a monitor using the computer?

I was wondering if it was possible to power on/off a display using a computer connected via HDMI. Let me explain : I want my computer to power off my monitors (not standby mode) when I don't use it (...
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2answers
467 views

how to automate pc shutdown & power off?

How could I automate the nightly shutdown and power off of my computer at the mains. That is aiming to use zero electricity during the night. Requirements Can configure time you want shutdown ...
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0answers
392 views

How to prevent “lock” on screen power-off in Windows 8

If my screen turns off due to power saving settings in Windows 8 the PC gets locked also. Is there a way to delay the locking another minute? I have no screen saver set (where the lock setting would ...
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0answers
5k views

How to enable different ACPI Sleep Modes with Asus UEFI BIOS

I'm using a new asus motherboard which supports ACPI 2.0a, and am running Windows 8. I'm trying to figure out how to maximize energy efficiency and component lifespan. This computer is only used for ...
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2answers
2k views

Why is my hardware switching on a smart power strip if the desktop is off?

I bought a smart power strip to manage my electricity usage at home. I have a large desktop machine that is my main computer during the times when I am at home. I have my main power supply hooked up ...
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1answer
5k views

Windows 8 goes into sleep even if it's deactivated

I'm using Windows 8 Pro on my notebook. I set the energy settings to "sleep: never". Nevertheless the notebook goes into sleep mode after some minutes of inactivity. I don't have an external sleep ...
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1answer
551 views

No image after waking up monitor

Quite often then my monitor goes back to power mode after being in power saving mode (which is initiated after defined period of inactivity), there is just black screen, however it seems like ...
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1answer
574 views

Linux CPU energy saving hacks

I have a quad core CPU (Phenom II 945), because sometimes I need performance, but most of the time, 4×800 MHz (the minimal frequency) is still overkill for most usages. So, three questions ...
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1answer
181 views

How can I turn off the display with the Griffin Powermate in Windows?

I want the display to turn off after a long press onto the Griffin Powermate. The software that Griffin provides for windows allows "opening an application"; but it cannot open the shortcut "C:\...
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3answers
268 views

Will a UPS switch power off all connected loads in one action?

I am going on vacation and was going to buy a power supply cord with a disconnect switch to power OFF all my equipment, eliminating phantom load. Can I use the OFF/ON switch on my UPS to perform the ...