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

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1answer
299 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....
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0answers
26 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, ...
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 -- ...
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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 ...
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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 ...
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0answers
50 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 ...
425
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7answers
34k views

How does a computer restart itself?

How can a computer restart itself? After it's off, how does it tell itself to come back on again? What kind of software is it that can do this?
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0answers
50 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 ...
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2answers
2k views

Want to throttle CPU on Windows 7 desktop, but it is ignoring Max CPU setting in Power Options

I want to be able to substantially throttle down the CPU on my desktop, which due to space constraints is in our bedroom and the wife is suspending it each night because of the fan noise. I've tried ...
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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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3answers
724 views

How can I convince Windows 7 to reboot upon hibernating rather than powering down?

I have a Linux and Windows 7 dual-boot setup on my PC and I would like to configure the OSes so that when working in one OS, I can hibernate (saving the state to disk), reboot, use the other OS, ...
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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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1answer
183 views

Ubuntu, battery is never fully charged

I installed Ubuntu 16.04 in a Lenovo thinkpad e550 and i have a problem: the battery doesn't charge, the icon on the panel doesn't indicate it's charging, and in "Power Statistics" -> "Laptop Battery" ...
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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 ...
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0answers
278 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 ...
2
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1answer
334 views

Power states in Windows

Does anybody know or have a link to documentation on how the Power Manager of Windows, determines to go to the ACPI power states S1-S4? Are there any settings that can be configured? I know that by ...
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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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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, ...
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1answer
504 views

Blk update request: I/O error . Ubuntu won't boot

When booting Ubuntu, my laptop is first displaying a message "ACPI probe failed" then it starts throwing "Blk update request: I/O error" (see video) Is this the HDD failing?
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4answers
3k views

Is the CPU active in Sleep mode?

Suppose on a Windows OS, you toggle the computer to go into sleep mode and put it away. As far as I know there will no programs or processes will be running. But would the processor still be running ...
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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....
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votes
3answers
2k views

Skip all warning prompts on ACPI shutdown?

When I issue an ACPI shutdown command to a Windows XP guest machine from the host VM server, I want Windows to shutdown. The problem is, Windows always wants to ask some question or another, rather ...
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1answer
2k views

Gigabyte motherboard (890gpa-ud3h) won't shutdown USB power

what the thing the Gigabyte engineers were thinking about their BIOS? How to disable USB being powered while standby/off by button? If I do hard shutdown by button (not related to my another question ...
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2answers
11k views

System (ACPI.sys) is always using about 15-20% of my CPU

I have a 13" Sony Vaio laptop (model SVS13A1C5E) and I upgraded it to Windows 8 with a fresh install, after upgrading I installed Win8 drivers listed here. Now I have a problem with the CPU usage (it ...
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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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votes
2answers
4k views

Windows 10: Laptop display refuses to turn off

System: Clevo P157SM (Sager NP8255-S). I've just upgraded to Windows 10 Pro on my laptop and now the display refuses to turn off even if I lock the session or after the configured timeout (15 minutes ...
3
votes
1answer
7k views

Unable to install ubuntu - ACPI PCC probe failed

I recently bought a new computer. The first OS I installed was windows 8.1. After that I created a bootable usb drive with ubuntu 14. Unfortunatelly every time i try to boot it and install it i have ...
0
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1answer
60 views

Access xinput from acpi bash script on debian

I'm trying to program a non-working special key on my keyboard using the acpi events, and already got acpi to recognize a keypress and pass it on to a shell script. However, for some reason I cannot ...
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0answers
116 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 ...
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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
89 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: [...
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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 ...
2
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1answer
882 views

How to install Windows XP directly on a new-ish laptop when it says ACPI is non-compliant?

When I try to install Windows XP (don't ask...) on a new-ish laptop (Lenovo Y410p), its text-mode portion installs correctly, but then when I try to boot it afterwards so that it can continue with the ...
2
votes
1answer
48 views

How to run script every time display is re enabled?

On my linux laptop my screen in flickering due to low PWM duty cycle, I found solution here: https://bbs.archlinux.org/viewtopic.php?id=159817, and wrote script that set PWM to higher value. The ...
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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 ...
2
votes
1answer
2k views

Invalid ACPI : Invalid PBLK length [5] during Debian boot

I installed Debian 5.03 Lenny successfully on my machine. I got this error during boot: ACPI : invalid PBLK length [5]. After that the Operating System boots properly and starts normally. What ...
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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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0answers
837 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,...
5
votes
3answers
7k views

How can I manually control a fan from the terminal?

I'm trying to control the fan speed on my desktop, and I'd appreciate your help. Goal: Use a script to control the fan speed on my computer. Motivation: The embedded BIOS "Smart Fan" settings isn't ...
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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 ...
0
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2answers
672 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
22k views

Unable to install windows 7 on Asus X553M

I bought a new ASUS X553M laptop with DOS pre-installed, I am trying to install windows 7 but getting error "The BIOS in this system is not fully ACPI compliant. STOP : 0x000000A5" Please help.
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 ...
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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 ...
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 ...
16
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4answers
10k views

What is keeping my PC from sleeping?

How can I find out why my laptop or desktop won't automatically go to sleep
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0answers
140 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 ...
0
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1answer
139 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 ...
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1answer
2k views

ACPI disabled from BIOS causes a restart loop

I tried to disable the ACPI feature from BIOS, but it seems the machine enters a restart loop after I do that. It always restarts itself right before the system boot begins. Any ideas?
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0answers
435 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 /...