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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0
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1answer
857 views

Adjust screen brightness doesn't work Xubuntu 13.04 xfce4 keyboard shortcut fn+f2/f3 Toshiba L840 laptop

Can't adjust the screen brightness using keyboard shortcut (fn+f2/f3). Running Xubuntu 13.04 w/ xfce4-power-manager on a Toshiba L840 laptop. Tried editing the grub file w/ ...
8
votes
3answers
993 views

Prevent PC from shutting down on Power button

I am building a PC and a BeagleBords ARM embedded for public use. They run Ubuntu 13.04 and manually assembled Linux respectively. Is there a way to prevent them from being shut down on pressing ...
2
votes
0answers
392 views

Is Mactel PPA good stuff for Macbook Pro 5,3 with Ubuntu 13.04?

The Mactel repository proposes some extra packages in order to run Ubuntu on Macbook computers. Mine is a Macbook Pro 5,3 (2009) running Ubuntu 13.04. The wiki page about the Mactel support seems to ...
1
vote
1answer
776 views

ACPI and Macbook Pro 5,3 Ubuntu 13.04

Found out that I can't use ACPI on my Macbook Pro 5,3 (2009) with Ubuntu 13.04. I tested it with the 3.6.x and 3.8.x kernels, and with nVidia drivers 310 ("tested" driver in "Additional driver") and ...
3
votes
1answer
125 views

Why does Ubuntu think that my iMac is a laptop?

I recently installed Ubuntu 13.04 on my late-2010 iMac. I am dual-booting OS X 10.8.3 and Ubuntu. For some reason, Ubuntu thinks that my system is a laptop. Under the "Displays" settings, it only says ...
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 ...
1
vote
0answers
774 views

Can not run Ubuntu 13.04 with ACPI

I am trying to install 64 bit Ubuntu 13.04 on a new system. I can only run Ubuntu with "acpi=off" option. This applies to both attempt to run Live USB and installed system. If I do not give "acpi=off" ...
4
votes
2answers
4k views

Can I use the power button to shut down my computer gracefully on Ubuntu Minimal?

I am looking for a way to get my computer to automatically shutdown when I press the power button. I have installed Ubuntu 12.10 minimal. A similar question is asked here. However, with Ubuntu ...
0
votes
1answer
560 views

How to configure acpi for battery?

I am using: acpitool -B to print out information about my battery. It returns: Battery status : <not available> When I do ls in /proc/acpi/battery, there are no files. A few other ...
8
votes
3answers
7k views

where did /proc/acpi/battery/BAT0/XXX go in 12.10?

I use some custom scripts that use and monitor the battery information that was in: /proc/acpi/battery/BAT0/(state|info) However, since upgrading to 12.10 I no longer have those files and I've been ...
2
votes
0answers
747 views

Dell Inspiron n5110 syslog ACPI warnings on Ubuntu 13.04

I just installed Ubuntu 13.04 and got a bunch of warnings in syslog: May 9 02:21:34 Dell kernel: [ 9.689651] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region ...
1
vote
0answers
186 views

Ubuntu 12.10 overheating on S46CA

I bought a new notebook ASUS s46ca with Windows 8 preinstaled. And I noticed that the left side from the touchpad gets warm. In windows 8 it does not happen. I think that fan is running faster in ...
0
votes
1answer
682 views

Problems on boot

Good morning! I have a little problem with my Ubuntu 13.04. Actually, I have this problem with any other linux distributive (Fedora, Fuduntu, Mandriva, Ubuntu 11.04 => 13.04, Linux Mint 14 and oth.). ...
0
votes
2answers
418 views

On boot, Ubuntu 13.04 reaches 89º C and shutdown

After install Ubuntu 13.04 my notebook, an inspiron 15R n5010, reaches 89ºC and shutdown. I tried to boot on recovery mode and before shutdown seems to say that "ACPI" gave the order. Somebody knows ...
5
votes
3answers
2k views

Automatically start at specific time like BIOS?

Some BIOSes have an option to start the computer from a fully off state (not suspended) at a specific 'alarm' time. Is there any command or way to set this in Ubuntu without restarting and going to ...
3
votes
3answers
2k views
3
votes
1answer
662 views

Hibernate on Dell Inspiron 1525

I'm ahving a Dell Inspiron 1525. I installed there a stock Ubuntu 10. However I can see no "hibernate" item in the shutdown menu. Is ACPI supported on 1525? If it is, how can I make hibernate work ...
0
votes
2answers
3k views

My laptop only boots with the acpi=off parameter. How can I fix this?

I managed to install Ubuntu 12.10 with the option acpi=off, as it didn't work without. Now it boots only with this option. Is it possible to solve the problem for the need of this option? With this ...
2
votes
0answers
138 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 ...
1
vote
1answer
608 views

Terminal check remaining battery health [duplicate]

I've tried the following command cat /proc/acpi/battery/BAT0/info And there it is No such file or directory acpi outputing this: Battery 0: Unknown, 100% Is there another way to check the ...
2
votes
1answer
720 views

Brightness does not change on Asus K55n laptop

I have tried setting different acpi_os, acpi_backlight=vendor, changed the kernel to 3.7.4, and yet nothing happens when I use the FN + F5/F6 keys to change the brightness. KDE recognizes it and will ...
1
vote
1answer
1k views

Where is the ACPI log?

Sometimes my computer shuts down unexpectedly, usually when some process is taxing the CPU. This answer mentions that "when a system shuts down in a normal way, it is either a user with root ...
2
votes
1answer
888 views

I need help with the battery Icon [closed]

I have a Toshiba Satellite L645D running Ubuntu 12.10 and it seems like Ubuntu like some other distros (Nadia, Debian) won't recognize my battery and I don't know the reason for that, it won't show ...
1
vote
1answer
422 views

How do I control the fan when running kernel 3.7?

A while ago I started to use thinkfan to control the fan speed of my lenovo thinkpad. This became necessary as it stoped working after a kernel update (I think it came with the installation of a v3.7 ...
2
votes
1answer
488 views

Ubuntu 12.04 LTS only works when when I replace splash with acpi=off

I'm very new to Ubuntu and this site as well. I've grown up on Windows and felt like trying something new. So here is my problem: I have a DELL Inspiron m5030 that got a virus so i reformatted and ...
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, ...
4
votes
3answers
568 views

ACPI 30k+ interrupts per second

My computer is currently doing something like 30k+ interrupts per second. This causes battery issues as well as the CPU being always stuck at the highest speed, making it very hot (overheating.. 75C ...
3
votes
1answer
2k views

Thinkfan on Thinkpad T410 - thinkpad_acpi doesn't seem to support fan_control

I try to run thinkfan. I installed it and configured it. But if i do this i get an error. chris@chris-ThinkPad-T410:~$ sudo thinkfan -n WARNING: Using default temperature inputs in ...
7
votes
3answers
3k views

ACPI issue, help to fix broken DSDT on an HP Pavilion DV6-6008el

I'm having a hard time fixing the ACPI subsystem of an HP laptop (Pavilion DV6-6008el, Ubuntu Natty 64-bit). I can boot only if acpi=off is specified as kernel parameter in grub, otherwise blank ...
0
votes
1answer
415 views

My mouse / keyboard response gets delayed if I don't use it all the time.

Occasionally my mouse / keyboard would take extra long to respond to input. If I moved the mouse or pressed a key it would take an extra second to respond the work normally. If I leave it alone for ...
1
vote
1answer
563 views

acpi_listen only detects every other backlight hotkey press

I am trying to get the LCD backlight brightness control to work properly on my new ASUS G75VW-DH72 laptop in Ubuntu 12.10. I got it to mostly work by following the instructions that I wrote here ...
11
votes
3answers
7k views

How do I configure WakeOnUSB properly?

How do I configure Wake-On-USB properly on a 10.04 or 10.10 Ubuntu (2.6.36 and higher if needed)? (Wake-on-USB is when the computer is asleep and for example a USB Keyboard event wakes up the ...
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 ...
2
votes
1answer
487 views

Where to download a fixed DSDT?

I have an older PC I'm trying to throw Ubuntu on. It's running an Abit NF M2 Nview and the DSDT is buggy even on the latest bios. Everywhere I look at says to download fixed DSDT's from this site: ...
4
votes
2answers
6k views

Boot with “noacpi” automatically from hard drive?

If I boot ubuntu from the live cd without any special options I get the following message: [ 0.040001] Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with apic=debug and send a ...
0
votes
1answer
1k views

HP Spectre XT screen dim (completely dark) on boot. Can this be fixed? [duplicate]

When my computer boots up, the LCD backlight is completely blank. I have to increase the brightness using the keys on my keyboard, and only then am I able to see the login screen. I'm not sure how ...
5
votes
1answer
3k views

Brightness control increments brightness by 4 instead of 1

The value of /sys/class/backlight/acpi_video0/brightness increments by four when the brightness controls are used, but I am able to force the value to anything in [0-10]. I have a HP Envy 17-3200. ...
1
vote
1answer
4k views

ACPI _OSC control

I've noticed an error from dmesg output that ubuntu canot enable ASPM: [ 0.192722] pci0000:00: ACPI _OSC support notification failed, disabling PCIe ASPM [ 0.192728] pci0000:00: Unable to ...
0
votes
2answers
2k views

How do I shutdown 12.10 when ACPI is set to OFF?

I recently installed 12.04 on an HP Spectre XT ultrabook. I installed 12.04 from a USB. When the install was complete, and the computer restarted, I got a blank screen. After some searching, I found ...
2
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: ...
0
votes
1answer
830 views

Samsung series 5 ultra - suspend on lid closing is disabled by kernel

I have a Samsung series 5 ultra (np530U4c - ivy bridge/Nvidia version). The machine won't suspend on lid closing. I has worked on fresh install. After it I added "pcie_aspm=force ...
0
votes
1answer
348 views

12.04 Install Confusion - Live CD Boots fine, installed system needs acpi=off to boot

New Lenovo Z585 A10 laptop. I can boot the 64 bit Live CD fine - Try Ubuntu - dmesg contains lots of acpi stuff, Suspend is available etc. When I do the install I am unable to boot without ...
0
votes
1answer
1k views

Booting trouble after upgrade to 12.10 on a Dell XPS 15z

Before the upgrade, booting did not work out of the box, but this site told me to put "acpi=noirq" before "quiet splash" in the commands befre startup, and edit /etc/default/grub too. This worked ...
2
votes
3answers
4k views

Sound system is eating away the battery

In my laptop the sound code is running at 100% even when I am not playing anything. It is causing my palm rest to hit significantly. While I do not face the issue on windows machine where I am using ...
5
votes
5answers
7k views

Can't adjust brightness on my MSI VR420 laptop

Using every method possible I'm unable to change my laptop brightness.. It's stuck on super max brightness.. Using the slider in the "screens" window int he control panel doesnt do anything, and using ...
0
votes
1answer
609 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
2k 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
670 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
7k 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 ...