Advanced Configuration and Power Interface, a standard for power management in operating systems.

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1answer
359 views

Change XrandR setup on monitor unplugged/replugged

I'm specifically looking for a way to set up my laptop, when I unplug the external display, to reset the XrandR configuration so I'm only using 1 screen. Any advice? Basically, I want an acpi event ...
0
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0answers
285 views

I closed the lid and the screen is black (win8)

I have win 8 . And i have closed the lid from power management's or power option I think that was the name from win 8 not bios The lid was his option sleep and change it to do nothing THE power ...
0
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1answer
201 views

Why is my computer constantly resuming from sleep?

My recently reformatted Windows 8.1 machine keeps resuming from sleep. This is an acute issue ever since I got my SSD (the reason for the reformat), as Hybrid Sleep is out and the system does true ...
3
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6answers
12k views

Suspended Laptop Cannot Wake Up - Ubuntu

I've got an ASUS G73JH, and whenever I suspend it or hibernate it, it will not wake up. The screen stays backlight but is black. The fan remains running, however the HDD does not, not disk activity is ...
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0answers
1k views

CentOS 6.4, hibernate issue

The problem is, I can't use Hibernate feature. The system allows me to, but just after the power down, the system wakes up. Seems the system is getting wakeup command from somewhere else, USB, PCI... ...
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0answers
122 views

Sudden and spontaneous shutdown when using ACPI

On a Dell Optiplex 755, when I bring the system out from ACPI S3 (suspend) to S0 (normal running mode), the system stays on for perhaps 10 seconds, maybe more. Then it very suddenly shuts the power ...
0
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1answer
127 views

brightness keyboard dont work nor are recognized

I'm using xubuntu 13.10. When I installed the system the fn keys for brightness worked, but somehow they aren't now. They stopped working with no reason. The problem is that the keys are not even ...
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2answers
2k views

Is it possible to wake up an ACPI S3 suspended Linux System with an SMB packet?

I want to put my Debian NAS system in supend to RAM mode (ACPI S3) after a decent period of time idling in order to save some power. I thought about putting the NIC in a mode, where it waits for ...
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0answers
543 views

Win7: forcing the monitor into power-saving mode from the command line while a fullscreen program is running

I have a system that runs a full-screen program (based on love2d) for long periods of time. I would like to be able to put the monitor into power-saving mode after a certain period of inactivity. ...
5
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1answer
1k views

What does an ACPI BIOS configure during boot?

When a PC boots with an ACPI BIOS, what does it exactly do? I understand that the point of ACPI is to allow the OS to control hardware resources and power management but before the OS is loaded ...
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1answer
2k views

How can I manually generate a fake ACPI lid event from a script in linux?

I'm trying to make sure that my laptop will suspend if I unplug it after the lid is already closed, and I believe that one way to accomplish this would be to simulate an ACPI lid event when the power ...
5
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1answer
1k views

will boot command params acpi=off or acpi=noirq ruin my hardware?

Dell xps 15z here. Really, really trying to install linux distro to dual boot from. first goto is bt. cant even get past 'initramfs live media filesystem not found' on usb boot. next was ubuntu, ...
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1answer
294 views

s2disk does not power off on Debian with kernel 3.10 on Thinkpad

When I hibernate my Thinkpad T61 with s2disk, it does not power off. The problem occurred after migration to kernel 3.10 (3.2 works fine, 3.11 also broken). Any clue how to fix or at least debug it?
5
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4answers
7k views

Prevent poweroff on Debian when the physical power button is pressed

I'm on Debian-Lenny. I want to change the action taken by the system when the power button is pressed. How do I modify the system such that it does not power off when it gets an Power Button ACPI ...
2
votes
2answers
2k views

Can't boot system without acpi=off

Is there any solution to run fedora 19 on my laptop (Asus x61s) without acpi=off set and removing power management controll? If I remove this option, system hangs just after start booting. I never ...
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2answers
13k views

Disabling System Interrupts in Windows 7 - (high CPU usage, semi solved)

I know the system interrupts topic is pretty common with varying solutions but I had a question about how to implement a solution in Windows 7 the way I did in Ubuntu 12.04. Background: Bought an ...
3
votes
1answer
289 views

Determining Namespaces Not in the ACPI Spec

I am trying to determine how it may be possible to find documentation for namespaces that are not documented in the ACPI spec. I have an Asus uEFI BIOS v(3202) and I'm receiving kernel messages ...
2
votes
1answer
598 views

Why does my DSDT table is different from what I found online?

I have found a field in DSDT table where I want to modify from here http://www.ztex.de/misc/c2ctl.e.html Generally, I want to modify the _PSS field about the processor so that I can have more ...
4
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0answers
231 views

Need noacpi in CentOS 6.4, not in RHEL 6.4

I've been trying to fix a rather odd problem that I've seen on our new Dell R5500 (Xeon based workstations). We want to run CentOS 6.4 64 bit on them. We did a base install which worked fine, however ...
1
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2answers
2k views

Difference between software initiated shutdown and using the power button?

It's possible to shut down Windows by software, i.e. by clicking somewhere (Start button/Shutdown), or by using tools like shutdown.exe etc. It's as well possible to shut down Windows by pressing the ...
0
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1answer
652 views

Screen stays on when laptop lid shut, running centos 6.3

I'm running Centos 6.3 on a Dell laptop, I'm not running a graphical desktop - just text mode. When I shut the laptop lid the display remains active with the backlight on, whereas I'm expecting it ...
1
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1answer
349 views

Disable CPU halt state to prevent BSOD/KSOD

I have recently had problems with my Windows7 desktop bluescreening several times per day (with many different STOP codes) and occasionally blackscreening. Because it is still under manufacturer's ...
4
votes
1answer
4k views

Windows 7 does not 'wake up' from Sleep mode

I'm new to Windows 7, so I don't know if this is normal. When the computer is idle for 30 minutes, the screen goes black and no key pressing or mouse movement will bring the computer out of standby. ...
16
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1answer
9k views

What do the power management tools in Linux do? (acpi, pm-utils, etc…)

I am really really confused about the power management tools available for Linux: I have Arch Linux with XFCE on my laptop. The guides on the the Arch Linux wiki list acpi acpid pm-utils cpufreq ...
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0answers
727 views

High Interrupt DCP processor take

I have a quad core laptop with win7. Around 3 months ago the laptop occasionally slowed down. Resource Monitor and Process Explorer show that processor 0 was 100% busy with DCP and Interrupts. A ...
2
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0answers
606 views

Is it possible to install Windows 8 on a non-ACPI computer?

I have a computer with a BIOS that doesn´t support ACPI. I tried to install Windows 8 but the setup said I cannot install Windows 8 without ACPI. After some research I found out that this is since ...
5
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1answer
3k views

How can I tell Windows or Linux to put a specific (PCI[e]) device into sleep/off (D3) state?

How can I tell Windows or Linux to power a specific device (e.g. USB controller, network card, video card) down, that is put it in the D3 state? From the very little I know about ACPI and such, the ...
0
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1answer
904 views

Exit stand-by only when power button is pressed

I was wondering if there is any setting to make my PC exit stand-by only when the power button is pressed on my computer case? My laptop does this out of the box, it won't exit stand-by on any other ...
2
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0answers
828 views

Samsung NP530 CPU stuck at 55 C temperature

I have run into heating issues on my ultrabook running Linux. Idling temperature for Win7 is ~45 C, while in Linux it is ~55 C. Output of sensors rohit@raijin ~ $ sensors acpitz-virtual-0 Adapter: ...
3
votes
1answer
631 views

Windows 7 Wakeup from Sleep then Shutdown

Is this caused by low battery? I have an Asus UX31A, and I left it unattended. As usual, in 5 minutes, it went to sleep mode with the lid still open. I came back a couple hours later, and I noticed ...
0
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1answer
522 views

Topic: Load custom DSDT @ windows 7?

I've extracted my BIOS DSDT, disassembled it to ASL, fixed, compiled it back to AML, and how can I make windows to load it instead of my BIOS DSDT? Do I need to write driver or could it be done via ...
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2answers
659 views

How to sigstop/sigcont processes based on CPU temparature?

I'm temporarily forced to work on a laptop whose fan has failed. Under light load it works fine, but as soon as I start computationally intensive jobs, the temperature raises very significantly, even ...
2
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0answers
448 views

Acer Aspire Laptop won't charge in Windows 7 Home Premium x64

I have an Acer Aspire 7750-6801 laptop running Windows 7 Home Premium 64 bit OS. The issue is that it will only charge sometimes when plugged in. I thought it might be a hardware issue, so I tried ...
1
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0answers
229 views

ACPI events delayed or not logged in Linux

I have a samsung ultrabook (NP530U3C) that is not working good with ACPI events: lot of ACPI events randomly stop to be logged on kernel messages either in acpid logging. the lid closing is ever ...
3
votes
3answers
837 views

New HP Mini 2140 netbook battery wrongly reports 40% wear after 2 months of usage

I'm using an HP Mini 2140 with Ubuntu 12.04 installed on it. Two months ago, due to the fact that my old battery lasted only for about 20-30 minutes, I bought a new battery, which reported a capacity ...
2
votes
1answer
11k views

How do I make ESXi 5.0 to shutdown virtual machines when the physical power button is pushed?

I have a home NAS/DLNA server built out of an HP Micro Server with the HP branded VMware ESXi 5.0.0 build-623860 (free license) installed. Being a home media center I'd like it to be "manageable" by ...
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2answers
870 views

Auto-start computer from shut down state

Is there any way to start a computer at scheduled time when it is Shut down. I know how to start it when it has been put into Hibernation.
4
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3answers
4k views

Set fan speed by RPM on Thinkpad T420s in Linux

The only interface I've found for setting the fan speed with the thinkpad-acpi module, is setting pre-defined levels, 0-7. Example: sudo su -c 'echo "level 2" > /proc/acpi/ibm/fan' I would like ...
3
votes
1answer
1k views

Difference between suspend to “mem” and pm-suspend

What is the difference between echo "mem" > /sys/power/state and pm-suspend Both can put the computer to sleep mode. I want to execute a script automatically when the system resumes from ...
4
votes
1answer
128 views

Estimated power draw for different power states?

What would be a raw estimate of the power draw of a semi-modern desktop PC, in different sleep states? Will the suspended state (with powered RAM) draw much more power then the PC in hibernation (...
0
votes
1answer
1k views

How do I pause and restart VirtualBox virtual machines on ACPI suspend?

I use VirtualBox to set up Web developer environments on my laptop. If I suspend the computer and then restart, I'll get very long startup times while VirtualBox spins back up. I have much less of a ...
3
votes
1answer
5k views

Is my computer in ACPI S3 mode?

I recently got a new motherboard for my Intel Core 2 Quad 9300-based PC (the old motherboard was fried). The old motherboard was an ASUS IP35 Pro, while the new one is a Gigabyte G41MT-S2. Since the ...
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0answers
1k views

Linux can't boot without acpi=off on Thinkpad

I recently installed Linux Mint 12 - the Gnome version - on a new Lenovo Thinkpad L520 for a friend. It's running kernel 3.0.0-12- generic. When I booted - either into the live CD, or into the ...
0
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1answer
493 views

Fedora 16 wakes on mouse - how to prevent this?

I have a desktop computer with PS/2 (!) keyboard and mouse, running Fedora 16, just recently installed. It goes to sleep OK, but moving the mouse wakes it up. I'd like moving the mouse not to wake ...
4
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0answers
3k views

What is acpitz-virtual?

lm-sensors gives the following output for this machine: acpitz-virtual-0 Adapter: Virtual device temp1: +60.0°C (crit = +105.0°C) temp2: +56.0°C (crit = +105.0°C) ...
1
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4answers
95 views

repeatedly power on/off server or letting it run through

I run a PC at home that I want to access from remote when I am travelling. The minimum requirement is that I can access it once every day (if I can access it more often the better of course). I can ...
2
votes
2answers
2k views

Ubuntu 11.04, CPU Throttling Works In Reverse?

I've got an HP EliteBook 8530p. I have run prior versions of Ubuntu on this machine, but I've recently formatted and put 11.04 on it. No matter what I try, the CPU throttling goes in reverse - when ...
2
votes
2answers
2k views

Laptop abruptly powers off after few seconds of booting

I have a 3 year old HP Pavilion dv2208 laptop. Recently it started abruptly powering off in like ~20-30 seconds into Windows boot sequence after almost every reboot/shutdown. Even if I leave it in ...
2
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1answer
935 views

“Bios Not fully ACPI compatible”

Why would a computer that has been working for month's suddenly start having a "Bios not fully ACPI compatible" blue screen error, when the bios has not changed?
0
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1answer
230 views

using ACPI in terminal

I'm running Centos on my home laptop just to play around with, I ACPID running which is letting g-p-m get the battery information but I want to find out battery information over ssh and acpi doesn't ...