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

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5
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3answers
4k views

Keyboard doesn't work after Windows resume from sleep (S3) — how to fix?

I have a weird issue with my keyboard after resuming from S3 sleep: I can type perfectly for maybe 5 seconds, but afterwards the keyboard ceases to work until I hibernate or restart (or sleep again -- ...
0
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2answers
55 views

ACPI, computer turning on sporadically

Lately I've noticed that my GNU/Linux Gentoo desktop computer turns itself on sporadically while it is suspended in ACPI S3 mode. I have made no changes nor updates to the BIOS. In dmesg I see the ...
0
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2answers
671 views

Force shutdown of Windows VM via ACPI or script

At work we've got a Windows Server 2003 VM that we want to shut down when the host operating system (Linux) shuts down. We have this working except for when a user has logged in and locked the screen. ...
2
votes
1answer
2k views

Ubuntu 10.04 Keyboard and Mouse Freezing Problem

I had a partition setup with Windows XP and Ubuntu 8.04 dual booting. I recently upgraded to Ubuntu 10.04 by installing fresh from CD but leaving the previous /home folder as is. Things seemed to be ...
1
vote
1answer
296 views

Windows 2003 Server doesn't start

My PC with Windows 2003 server has this problem: it doesn't start in normal mode, and in safe mode, it hangs-on the acpitabl.dat I have tried to reset BIOS and disconnect all devices, without success....
1
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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 ...
1
vote
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 ...
0
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1answer
138 views

How id it technically possible for Windows to wake up a hibernated computer?

Windows has many different reasons why it might wake up a system... the biggest that comes to mind is for Windows Update tasks... but my question is how this is even possible when (at least to my ...
0
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1answer
341 views

How to rewrite ACPI control tables from Linux?

I have a HP Probook 4720s laptop with broken ACPI tables. The fan is always switched off and the computer tends to overheat and shut down. Under Windows I can use a program called RW_Everything to ...
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 ...
0
votes
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 ...
0
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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?
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 ...
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 ...
0
votes
1answer
1k views

How to support GNU/Linux on lenovo g470 laptop ? fans, mic, sdcard etc

I recently got a lenovo g470 I use it under GNU/Linux debian and update my notes at : http://rzr.online.fr/q/lenovo Maybe it's a too recent model to get support, but I bet this is also affecting ...
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votes
1answer
11k views

BIOS not ACPI compliant, on windows 7 installation

I was facing a problem of blank screen with cursor after login in my Lenovo G40-30 laptop which was pre-installed with windows 8. So to resolve it I somehow decided to change it from UEFI boot to ...
4
votes
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 ...
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) ...
2
votes
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 ...
2
votes
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 ...
2
votes
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: ...
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0answers
25 views

Noisy HP DL360 server and DMESG errors

I purchased a HP ProLiant DL360 server for use with Solaris testing because it was OEM hardware. The server sits in my basement and its kind of noisy. It sounds like a mini high-bypass jet engine, ...
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0answers
24 views

Zotac Nano uses lots of power while on standby and accesses USB stick - why?

I have a Zotac Nano mini PC with a UEFI firmware here. I have noticed that when on "standby" it consumes a few Watt of power. To illustrate: We start with the power supply disconnected (the power ...
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0answers
51 views

XP unable to hibernate with system installed on LSI controller?

I'm trying to build a workbench machine that will multi-boot all sorts of OSes, one of which will be XP32, SP3. So first up, please don't tell me how silly it is to be installing this nowadays, ...
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0answers
23 views

How can I tell my Linux installation to handle the brightness ketys with ACPID?

I want to manually control my brightness keys making a event on /etc/acpi/events. Only that there is a problem, when I press the brightness up/down keys, the brighness changes (I think that the BIOS ...
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vote
0answers
116 views

What exactly does acpi_backlight=vendor do

I have an issue when booting Linux with a device plugged to USB 3.0. If there is anything plugged (USB stick, keyboard, …), the system hangs on start with blank screen and does not react even on SysRq....
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0answers
41 views

Acpi gts parameter

I was wondering if there is a relationship between gts parameter and "suspend to RAM" state. Is it possible, that change settings in /sys/module/acpi/parameters/gts (from 0 to 1) has some effect on ...
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vote
0answers
139 views

Is Wake On LAN supposed to work even after AC power reset?

So, if you unplug the AC power cable from the wall and re-connect it to the PC Power Supply, is the Wake On Lan functionality still supposed to work on a PC? The WoL functionality is enabled in Bios ...
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0answers
115 views

Hibernation via power button vs Start menu

I had a problem a few years ago with a Mesh Windows XP machine where if I set Windows XP to hibernate via the power button and then regularly shut down with it it appeared to lead to boot problems. At ...
1
vote
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 ...
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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 ...
1
vote
0answers
1k views

How do I understand or interpret the information in an ACPI .asl file?

Dumping the contents of the Windows Registry, located at HKLM\HARDWARE\ACPI\DSDT , I can get the DSDT, which I believe is the Differentiated System Description Table. More information about what a ...
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0answers
29 views

ACPI.sys is consuming a lot of CPU. Windows 7

Yesterday i had a problem where my CPU usage was getting spikes between 10% and 80%. I found out that svchost.exe was consuming a large portion of that. Now my problem is with the system process. I ...
0
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0answers
15 views

Have to hold down power button to trigger powerbtn.sh in Acer laptop but that powers it down

I am running Linux Mint on an Acer Aspire E 5 574G. The problem I am facing is, I have to press and hold the power button for a bit to trigger the lock screen or suspend or whatever option I have set ...
0
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0answers
42 views

ACPI Bios error on Windows 10 Lenovo Tablet

I have recently purchased a Lenovo Miix 310-10ICR tablet that came with WIN 10 by default. I was tempted to try Android on it so I managed to download and install it yesterday. But, I made a HUGE ...
0
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0answers
46 views

Plugged in but not charging Asus laptop

My Asus laptop says plugged in but not charging even after I reset the battery (taking it out, holding the power button for 45 seconds, putting it back in). I have also tried uninstalling Microsoft ...
0
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0answers
25 views

Error booting from Ubuntu 15.04 Live USB

I have a brand new Lenovo E460 with Windows 10 on it, I am trying to install Ubuntu Mate 15.04 64 bit using a Usb drive. In my BIOS, I have disabled Secure Boot, set the Boot Mode to Both and enabled ...
0
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0answers
23 views

Who wakes processor package from C-state?

There are a lot of strategies to save energy, e. g. Power Management States: P-States, C-States, and Package C-States. Under Linux the modules cpufreq and cpuidle controls the P- and C-state, ...
0
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0answers
70 views

ACPI doesn`t work properly?

My PC with next parameters H/W path Device Class Description =================================================== system P5K PRO (To Be Filled By O.E....
0
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0answers
111 views

keyboard won't wake up computer after sleep for a while, linux

When i put the computer to sleep, i can wake it back up with the keyboard or mouse just fine. until a few hours have passed, then only the power button will work. i'm guessing my keyboard only wakes ...
0
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0answers
87 views

systemd WakeSystem timer unsuspends system but doesn't run service

I'm trying to use systemd as an alarm clock (per this guide, but I'll give all the relevant details in this post). The core of the setup is these two files: /etc/systemd/system/goodmorning.timer: [...
0
votes
0answers
276 views

ACPI USB Keyboard Power On does not work (asrock z77 extreme4)

I have bios version 2.90 (latest) on an Asrock z77 extreme4 motherboard. In the bios I've enabled under ACPI 'USB Keyboard/Remote Power On' but when the system is powered off, nothing happens when I ...
0
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0answers
835 views

How to change brightness on puppy linux?

I just installed puppy linux but the screen is literally burning my eyes. The Fn+Brightness key on my laptp doesn't work, I tried to go to setup and change the gamma but it just make the colors darker,...
0
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0answers
433 views

Archlinux - Battery detected only on AC plug/unplug

I use Archlinux on a new Dell Inspiron 14. I need to plug/unplug the power cord to have the battery detected. For instance, now, the battery icon tells me that no battery is connected and $ ls /...
0
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0answers
544 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. ...
0
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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 ...
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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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 ...