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

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3
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1answer
435 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
votes
1answer
333 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 ...
1
vote
2answers
549 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
votes
0answers
332 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
vote
0answers
200 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
666 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
9k 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 ...
4
votes
2answers
4k 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 ...
1
vote
2answers
756 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.
2
votes
3answers
2k 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 ...
4
votes
1answer
766 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 ...
1
vote
1answer
1k 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 ...
3
votes
1answer
122 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
605 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 ...
2
votes
1answer
3k 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 ...
0
votes
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
votes
1answer
428 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 ...
0
votes
1answer
866 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 ...
0
votes
0answers
2k 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
vote
4answers
93 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
1k 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
votes
1answer
218 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 ...
2
votes
1answer
606 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
votes
1answer
220 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 ...
5
votes
3answers
32k views

What features does enabling ACPI 2.0 support in BIOS enable?

So I was booting up my box and for some odd reason my BIOS had lost settings (again), thus resetting everything to defaults. I was digging around making sure things were configured to my liking and ...
0
votes
1answer
660 views

How to disable automatic power-off on linux?

I need to disable the automatic power-off on shutdown so I can just withdraw the power myself. The reason for this is that the machine should power on itself when it gets power (which is accomplished ...
0
votes
1answer
163 views

System will only boot into a Live CD with core disabled in BIOS and ACPI off

I have a system that was running a Q6600 and Windows 7 RC. It crashed last night into a BSOD with a MACHINE_CHECK_EXCEPTION. Now it does that every time it boots into Windows. I tried using my ...
1
vote
1answer
744 views

How to set Laptop Brightness in Gnome and /proc on Thinkpad W510?

I can set the brightness of my laptop screen already via /proc. I can read and change the value. Now I've set the value to 33 and then I went into gnome power management and enabled the option that ...
2
votes
1answer
158 views

Linux PC randomly halts [instant power off] and doesn't power back on power switch unless AC power is cut

my Linux pc is randomly powering off. the working configuration: ATI drivers (fglrx) not loaded cpufreq governor (either performance or powersave) and frequency are set at boot (default settings ...
2
votes
2answers
774 views

Why does installing Snow Leopard on a x86 machine require patching the DSDT?

I have seen various articles that describe how to install various versions of MacOs on x86 laptops from HP, Dell, etc. Many of them refer to a need to patch the DSDT, and even recommend a gui DSDT ...
0
votes
0answers
899 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 ...
1
vote
1answer
251 views

ACPI vs Gnome-Power-Manager

I ran acpi on the terminal and it said 20 mins before the battery is fully charged. But gnome-poower-manager applet says 40mins. Which one is a better estimate?
1
vote
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 ...
1
vote
2answers
5k views

Is it possible to disable ACPI Suspend in Windows XP?

Is it possible to disable ACPI Suspend in Windows XP? I don't mean the "Control Panel, Power Settings,..., choose never to sleep, actions on button, choose 'ask me', actions on close lid, choose 'no ...
2
votes
3answers
2k views

Linux program to artificially create CPU usage

Since I own one of those Centrino based Core 2 notebooks that create annoying buzzing noises when idle (= entering C3 or C4 power saving states), I'm looking for a program that creates artificial CPU ...
0
votes
1answer
1k views

ACPI Throttling in Ubuntu

I'm looking to throttle my cpu through the ACPI. I've read up on it, but I keep receiving permission denied statements. I have 8 available throttling states. Here are the outcomes of my atttempts: ...
4
votes
1answer
1k views

How can I convince my ASUS EEE B202 to boot, when the power is returned to its power supply

My little home server 'sulks', when it loses power. Instead of booting, when the power is returned, it waits for me to press its power-button. Is there a way to have it boot without human ...
7
votes
2answers
664 views

Laptop sleep: How to go into S3 easily?

Laptop: Fujitsu-Siemens Amilo Pi-3525 OS: Vista When my laptop is plugged in and I close the lid, it goes into S1 sleep. This means that there is still: fan noise (annoying when trying to sleep at ...
2
votes
1answer
1k views

Tool for making fn-x buttons work? Archlinux, handler.sh

This just seems like such a normal thing to work. I know that this works out of the box on Ubuntu. But not in Archlinux. I would like to think that there is a tool in existence that would use ...
1
vote
1answer
234 views

What information is present in the ACPI tables?

What do ACPI tables contain? I tried googling it, and it did not help.
1
vote
1answer
272 views

How do you stop Linux from re-setting the display brightness?

After manually setting the display brightness on my laptop, the system re-sets the value. If the laptop is plugged in, the value is set to full brightness; if it is not plugged in, it is set to ...
2
votes
1answer
1k views

How to view ACPI RTC alarms?

My PC resumes at 8:30 when it's in standby mode, and I would like to check if there is an RTC alarm that causes it. How can I view currently set alarms in Windows?
0
votes
1answer
322 views

S3 standby/resume in PCLinuxOS on a desktop PC?

I've just installed PCLinuxOS on a regular desktop PC. It's working fine except for S3 standby/resume (I'm not interested in S4 hibernate). What packages do I need to install, and what settings to I ...
7
votes
3answers
2k views

My computer reboots when I tell it to shutdown

There are about 40 computers at work with this problem. They all have an ASUS P5KPL/1600 motherboard. They are all running SUSE Linux 11.1. When I tell the computer to shutdown either through the UI ...
0
votes
1answer
2k views

What impact could it have to set acpi=off during Ubuntu installation?

I've had a hard time getting Ubuntu installed on my Acer laptop. This guy recommended setting acpi=off to workaround some of the boot issues. If this solution is successful in getting Ubuntu to boot ...
3
votes
3answers
275 views

What circuitry displays battery status in laptops

Which circuitry in laptop is responsible for showing the battery status/charging etc in a laptop? My intension is to hack such a circuit inch a desktop to show the status of a standalone UPS. I am ...