Questions that relate to the Advanced Configuration and Power Interface (ACPI) specification which provides an open standard for device configuration and power management by the operating system.

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2
votes
1answer
3k views

Lubuntu Precise - Power button doesn't shutdown immediately anymore

After some upgrade, my headless lubuntu 12.04 stopped shutting down on power button press. I tried to edit ~/.config/openbox/lubuntu-rc.xml without success. Nowhere docs on possible alternative to ...
0
votes
1answer
701 views

How to check battery status when acpi is off?

I got acpi turned off with the kernel parameter acpi=off. But now I cannot see my battery state in any way. Is there a way to check battery state when acpi is still off?
0
votes
1answer
2k views

How to set acpi=off for installation? [duplicate]

Possible Duplicate: How do I disable ACPI when booting? I'm trying to install Ubuntu 12.04 LTS 64bit from a USB created in Windows using the recommended software from pendrivelinux. The USB ...
11
votes
2answers
3k views

Does Ubuntu support Core Parking?

Core parking is a new feature that introduced in Windows 7 to get better Battery performance . Depending on the resource use of the operating system it may park one or multiple cores of a multi-core ...
0
votes
1answer
751 views

what is the meaning of `ACPI_OSC request failed`? [duplicate]

Possible Duplicate: error about ACPI _OSC request failed (AE_NOT_FOUND) when i run gksudo xdiagnose and click on view error button, it shows me this error: pci0000:00: ACPI_OSC request ...
3
votes
1answer
8k views

How to monitor laptop temperature? [duplicate]

Possible Duplicate: How do I get the CPU temperature? No ACPI support for my PC, what can I do? After installing lm-sensors and runing sudo sensors-detect i got the message: Sorry, no ...
1
vote
2answers
706 views

Ubuntu Logs to Diagnose Hardware Issues [duplicate]

Recently, my laptop has started turning off for no apparent reason; it's an old laptop and the problem is likely to be a hardware issue, but I was wondering if there were any Ubuntu logs that might ...
0
votes
0answers
2k views

CPU Frequency Scaling methods *not* working Lubuntu 12.04

I've been trying to get CPU frequency scaling enabled on an old laptop (Celeron 530) running Lubuntu 12.04. I know this works in BIOS because it worked under Vista, and I can just get it working for ...
5
votes
3answers
4k views

How to enable hard-blocked bluetooth in Thinkpad Edge 320

I'm trying to use the built-in bluetooth device of my Lenovo Thinkpad E320. It seems to be hard blocked, but i can't find any possibility to unblock it. rfkill list returns: 0: tpacpi_bluetooth_sw: ...
1
vote
1answer
300 views

My Lenovo W500 resumes from suspend prematurely

In both Ubuntu 10.04 and 12.04, a perfectly happy sleeping laptop is woken when moved. Either the HD-shock detection, the trackpad or a sloppy key will wake it when the lid is closed. To test this I ...
0
votes
2answers
788 views

Backlight settings not stored

Recently bought a new laptop (Samsung 700Z) and installed ubuntu 12.04. Most stuff works out of the box, but some details are driving me crazy. I installed the fglrx driver to shut down the fans and ...
0
votes
1answer
141 views

How do I resume my session?

I have a desktop computer running Ubuntu, which is a very powerful system and I don't want it on all the time, so I would like to use the Suspend feature, but there is one problem: My computer won't ...
1
vote
2answers
2k views

Ubuntu 12.04 halt/poweroff trouble

I successfully installed Ubuntu Server 12.04 32-bit on a HP Proliant Microserver, everything works perfectly but when I try to turn off the machine with the command halt or poweroff hangs after ...
2
votes
2answers
37k views

How do I disable ACPI when booting?

When I tried to install Ubuntu from the live CD start menu, the screen became black with just a blinking cursor. I rebooted the PC and I chose the option acpi=off. Then the installer started and ...
1
vote
1answer
1k views

help with fixing fwts errors log [closed]

Here is an extract of results.log: MTRR validation. Test 1 of 3: Validate the kernel MTRR IOMEM setup. FAILED [MEDIUM] MTRRIncorrectAttr: Test 1, Memory range 0xc0000000 to 0xdfffffff (PCI Bus ...
0
votes
1answer
387 views

ACPI error: Laptop cannot hibernate

Hibernate does not work on my Lenovo W520 laptop. The computer freezes with the error message [ 6218.321519] ACPI: Unable to dock! The number in the square brackets can be different each time. The ...
0
votes
1answer
767 views

Computer is randomly shutting down. What could be?

I'm having some problems, my computer is shutting down at random intervals, but from today it started to shut off rigth after the login screen. It's a Toshiba Laptop. I thought it was the cpu ...
4
votes
1answer
2k views

Is an ACPI GPE storm normal in an Ubuntu session?

In a previous question (What is an ACPI GPE storm?), I asked about ACPI GPE storm. Looking closer to my kern.log file in /var/log/, I notice that in every session at some point (usually withing 20' ...
6
votes
1answer
3k views

What is an ACPI GPE storm?

Just experienced a system freeze (no touchpad, no keyboard, screen looked normal), Alt/SysRq/REISUB didn't work, had to press the start button. In var/log/kern.log I find "ACPI: EC: GPE storm ...
0
votes
3answers
890 views

Power management issues on an Asus N55 [duplicate]

I noticed that with respect to Win7 on my Asus N55 Ubuntu 12.04 tend to overheat the system. After startup the fan controller takes control of the fan, I could here it slowing down, after a few second ...
2
votes
1answer
143 views

Why can't I poweroff my computer if it isn't connected to a power supply?

When my computer is not plugged in the poweroff function doesn't work. It just boots up after poweroff. Whenever I poweroff by the way of GUI clicking or typing command poweroff or halt, my computer ...
8
votes
3answers
35k views

Booting Ubuntu 12.04 with “acpi=off” grub parameter

In order for me to boot into 12.04, I have to add the parameter acpi=off in grub. Any other options as specified here do not allow me to boot into Ubuntu. My question is simple, what does setting ...
3
votes
3answers
2k views

Ubuntu 12.04 strange internal battery capacity error

I recently bought a MSI-X370 laptop with ATI graphics and wiped Windows and replaced with Ubuntu 12.04. Now, up until my upgrade from beta 2 to the first stable Ubuntu 12.04 release, I didn't have ...
2
votes
1answer
332 views

Checking battery status using other than acpi command

Is there any way to get the battery status without acpi? I'm using Ubuntu 11.10 and I needed to install acpi via apt-get. So I guess there's another command that is used to check battery status ...
1
vote
1answer
2k views

Screen turns black after booting, backlight only works in recovery mode on an Acer Aspire 5736z

the screen turns black after booting. you need to use spotlight to see what is what is displayed on the screen but the backlight works on recovery mode. so my question is how can this problem be ...
3
votes
4answers
2k views

Unable to install any version of ubuntu in my laptop

I have MSI -CR400 laptop. Configuration of MSI-CR400 Intel(R) Core(TM)2 Duo CPU T6600 @ 2.2O GHz RAM 4.00 GB VIDEO CARD: NVIDIA GEFORCE 8200M – 512MB [256MB VRAM + 256MB (SYSTEM SHARED)] HARD DRIVE: ...
4
votes
2answers
11k views

No ACPI support for my PC, what can I do?

On my new PC something is wrong with ACPI support under Linux. I have to boot it with acpi=off and nolapic. Also it detects only one CPU core (this annoys me the most) and won't shut down completely, ...
5
votes
1answer
5k views

Using quad core, but only 1 CPU entry in `/proc/cpuinfo`? Is SMP running on my computer?

I just upgraded my system and did a clean install of Ubuntu when I did (Installed Oneiric Ocelot from the CD last week but yesterday upgraded to 12.04 LTS). I have an i7 920 (quad core with ...
3
votes
0answers
2k views

Error: “Fixing recursive fault, but reboot is needed” need to put acpi off

I having trouble with a Acer Aspire 2010. Whenever I boot, just one moment after grub I get the error "Fixing recursive fault, but reboot is needed". So I searched for it, and I found this workaround: ...
3
votes
2answers
1k views

Ubuntu Precise 12.04 and 11.10 do not halt the computer completely, but 10.04 LTS does (Asus P5G41T-M)

I am using an Asus P5G41T-M motherboard with Core 2 Duo E5300. I have tried Ubuntu 12.04 beta 2, the latest daily build of 12.04 and 11.10 (the latest official), both of which act in the following ...
1
vote
1answer
1k views

HP 6735s Brightness hotkey problem; where is brightness panel?

I have installed ubuntu 11.10 on my laptop hp 6735s. The screen is often too dark and i want to make it brighter, although the hotkeys Fn+F7/F8 are not working. I have tried some things: Firstly it ...
3
votes
4answers
2k views

Dell precision M4600 stuck at last stage of reboot

When rebooting the sequence freezes at the very last stage in which it attempts to the the system to reset through ACPI. Setting acpi=off in grub.cfg fixed this problem, but I was unable to suspend, ...
2
votes
3answers
2k views

How to configure motherboard to allow suspension

My computer is unable to suspend/hibernate on Ubuntu 11.10. Some people told me that probable had to do with my bios setting, that I should set my ACPI settings to S3. The problem is that I can't ...
0
votes
1answer
472 views

Installation Problem Error: Kernel_thread_helper

Good afternoon forumer of this great Ubuntu community, I pose my problem to see if I can help find a solution.! My computer a P4 HT 1GB of Ram 160DD My Chipset is intel Start with the live USB and ...
3
votes
1answer
1k views

How do you make the keyboard brightness button adjust at smaller intervals? [duplicate]

Possible Duplicate: How to increase brightness in smaller steps? I have a Lenovo Thinkpad T60 running Oneiric. According to the files in /sys/class/backlight, I should be able to adjust the ...
1
vote
2answers
4k views

Unable to adjust screen brightness on Gateway NV54

i have ubuntu 11.10 installed on gateway nv54. I want to install drivers for video card because the Screen brightness not changing.. But "Additional Drivers" not detecting anything. Graphics: Mobile ...
1
vote
0answers
991 views

Error message “BUG: unable to handle kernel” [closed]

I extracted the .iso onto a disk, and tried to boot from it. For the longest time, it wouldn't even boot, instead, it would bypass it and boot from the hard drive, until I swapped my newer disk drive ...
3
votes
1answer
633 views

If I just use a window manager and not a desktop environment, how do I get automatic dock/undock resolution updates?

Gnome and KDE both change resolutions when I dock/undock my laptop. They seem to do it automatically, more or less, based on the state of the computer. I'd like to have that behavior if I just run ...
1
vote
2answers
2k views

What is temperature limit for Intel i5 processors?

I am using Ubuntu for a quite long time now. I am concern about laptop getting hot. So i would like to know is it safe to have ACPI temperature 90 C ? Or it could damage my laptop ?
0
votes
3answers
8k views

How do I use acpi_call?

How am I supposed to run/install acpi_call? I've found a similar solution on the linux hybrid graphics blog, but still couldn't manage to run it.
3
votes
0answers
159 views

How to manually power-on the webcam?

I have a Clevo laptop with a built in webcam, on the keyboard there's a helpful Fn+F10 hotkey that seems to power the device on and off. I'd like to have some control over the webcam without needing ...
2
votes
1answer
507 views

Overriding DSDT did it work?

I have compiled a kernel using a custom DSDT file. I just want to make sure the kernel is using it. When I run dmesg |grep DSDT I get this: [ 0.000000] ACPI: Override [DSDT-Notebook], this is ...
2
votes
1answer
2k views

Deciphering hardware damage from sensor info

Recently my system has been suffering from what appear to be numerous hardware defects. Most critically, my system has apparently been overheating (under medium load) and summarily shutting down. ...
2
votes
1answer
218 views

acpi problems make wakeup every midnight

Since i installed Ubuntu on my Medion Akoya E7214, i have funny problems. It took some time to realize this. With standard settings, my computer woke up every midnight. That annoyed a lot. So i ...
1
vote
0answers
334 views

Attempting to suspend sometimes results in system lock [closed]

Running 10.10, and in the past suspend has worked 100% of the time. In the past few months, suspend only works roughly half the time. When it doesn't work, it results in me having to do a hard reset. ...
1
vote
0answers
159 views

What can I do to diagnose my ThinkPad R60 locking up when connecting power adaptor? [closed]

I move my laptop between places in my flat quite a bit for this I've got multiple power adaptors connected to outlets in two rooms. Now every now and again (I can't see a pattern) when I move the ...
0
votes
2answers
6k views

HP Pavilion G6 1209 temperature higher than usual and fan working in 11.10

Installing Ubuntu on this new machine i had various problems, so I asked around ask ubuntu for a solution. This is the latest one! :D When I start the pc it shows the temperature around 50-55. When I ...
1
vote
0answers
739 views

ACPI errors with an Asus P8H67-M [closed]

I bought a motherboard ASUS P8H67-M Rev 3.0, and collected a configuration: Motherboard: ASUS P8H67-M Rev 3.0. Processor: Intel Core i7 2600K. Video Card: Nvidia GeForce GTX 470. RAM: 4096 MB. ...
0
votes
2answers
987 views

Brightness doesn't work on an Acer Aspire 4750

I used Ubuntu 11.10 on Acer Aspire 4750 with Intel HD Graphics. When I made it up looks like Linux Mint 12, the graphics card was detected as Intel Sandy Bridge x86/MM2. But I still got problem with ...
0
votes
2answers
1k views

ACPI startup error on ubuntu 11.10 but worked on 11.04

i have looked around quite a bit for an issue like this, but cant find anything. I had Ubuntu 11.04 running on my desktop with no issues. I then formated the drive to install 11.10. I managed to get ...