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.

learn more… | top users | synonyms (1)

0
votes
0answers
112 views

All network connections close when laptop lid is closed 14.04

First of all, I'm not the most proficient beaver when it comes to linux in general but I catch on very fast. I'm using the x86 version of Ubuntu 14.04 LTS. I have a Toshiba Satellite L40-14F laptop, ...
0
votes
0answers
124 views

peripherals switch off, caused by overheating: ACPI problem

I have an HP Pavilion dm1-4125sa Laptop, 64 Bit with 1.7 GHz AMD Dual-Core E-450 CPU, dual-booted with Windows 7 and Ubuntu 14.04. Often when I am in Ubuntu (only Ubuntu, Windows is fine), when it ...
1
vote
1answer
2k views

Trying to run Ubuntu 12.04 or 14.04 with old ATI cards

First, I've tried Ubuntu 12.04, Ubuntu 11.04, Ubuntu 10.04, Xubuntu 11.04, Xubuntu 12.04. Video card is ATI Radeon 9600/9550/X1050 Series. I've done some digging before I decided to ask question ...
1
vote
1answer
566 views

Ubuntu 14.04 does not recognize my battery

For the last 3 years I've been using a Samsung notebook. I was using Ubuntu 13.10 until 2 weeks ago. Then I decided to format and install Ubuntu 14.04 LTS. Everything was working great, until the ...
2
votes
0answers
646 views

14.04 BIOS, ACPI Errors in dmesg

I recently upgrade from 12.04 x64 to 14.04.1 x64 Dell Latitude Laptop I am seeing messages in dmesg that are causing me concern. The 2 excerpts below are the ones I am most concerned with: [ ...
1
vote
0answers
80 views

Gateway ML3109 only boots with “acpi=off”

I have a Gateway ML3109 that I have installed Lubuntu 14.04.1 LTS 64 bit on. I used the alternate installer, and the acpi=off option during the install. My system will only boot with the parameter ...
1
vote
0answers
162 views

Ubuntu wakes immediately after suspend with Nouveau on GeForce GT 525M [closed]

I've seen a couple similar questions (1, 2, 3, 4, 5), but neither seems to address my case. When I suspend, after a second, I see a terminal with the word "Nouveau" (implying Nvidia problems?), and ...
0
votes
0answers
17 views

How does Ubuntu process the press of the power button and other keys presented on the keyboard?

How does Ubuntu process the press of the power button and other keys presented on the keyboard? There are many hot keys on my keyboard: Power Button, Volumn Up, Volumn Down, Mute and so on. How does ...
1
vote
3answers
956 views

Lenovo X1 Carbon with Ubuntu 14.04 wakes from suspend by itself after 3 hours

My machine seems to wake up from suspend by itself, at irregular intervals. Causing the power to die out, and machine turn off. It is quite the annoyance, when the machine is in my case and it wakes ...
0
votes
1answer
631 views

rtcwake cron does not work

I intend to put my computer to sleep every night and make it wake up again next morning. I found that rtcwake would serve my purpose. However putting it in the crontab does nothing. Following is my ...
1
vote
0answers
130 views

Extremely slow ACPI Event Propagation

A follow up to my previous question here: Run a Script when Power Button is Pushed So I am able to detect ACPI events and I intercept the power button press appropriately, however there is an ...
0
votes
1answer
2k views

Error: Cannot find backlight controller for radeon acpi graphics card

I get the following message every time I reboot Ubuntu 14.04 LTS: drm: radeon_acpi_init Error: Cannot find a backlight controller What does this mean, and how can I fix it? Many thanks for your ...
1
vote
1answer
495 views

ACPI not running custom script on power button press

Any idea how I can debug acpid not starting my custom script on modified xfce4 environment. I've modified "/etc/acpi/events/powerbtn" to point to the correct script: event=button[ /]power ...
0
votes
1answer
78 views

What does acpi -t measure?

Whenever I use acpi -t, no matter what I'm doing, the temperature it displays is the same: Thermal 0: ok, 14.0 degrees C So to try and figure out why that is, I go to the man page: acpi Shows ...
0
votes
1answer
43 views

How can I log acpi temperatures?

I'm trying to debug why my computer randomly shuts down sometimes, and to rule out temperature issues (since I don't think that's the case) I would like to log the output of acpi -t somewhere so when ...
0
votes
0answers
77 views

How to reverse the color of [HP] touchpad button/indicator LED

I have Ubuntu 14.04 running on a Compaq CQ60 laptop. The laptop has a button just above the touchpad which allows the touchpad to be enabled and disabled. There is a LED under this button, which (when ...
0
votes
1answer
343 views

How to disable the [HP] ACPI button for the wireless card?

I have Ubuntu 14.04 running on a Compaq CQ60 laptop. Ever since I installed Ubuntu (back on 12.04), the "toggle wireless" button next to the power button hard locks the WiFi adapter, causing me to ...
0
votes
1answer
296 views

Overheating in an dual-boot system (windows 8+Ubuntu 14.04)

Precisely, I would like to know if booting windows 8 through GRUB can affect in any way the global performance (CPU/GPU benchmarks, cooling efficiency etc...) in both Windows and Ubuntu 14.04 ... I ...
0
votes
0answers
105 views

ACPI Events not triggered after booting

I purchased a Convertible (Laptop and Tablet, Ubuntu 14.04 installed) and would like to execute a script when changing from laptop to tablet mode and the other way around. So I created two new files ...
4
votes
1answer
386 views

Run a Script when Power Button is Pushed

I'm trying to run a script once I push the power button instead of having my machine turn off. I'm running Ubuntu Server 13.04, but any answers also need to work on Server 14.04. I've looked at ACPI ...
0
votes
1answer
196 views

UPower reports Incorrect Capacity

I've just replaced my old Netbook battery with a new one of higher capacity. It was a cheap battery off of Amazon which clearly reads as a 5200mAh battery but Ubuntu reports the battery as being the ...
10
votes
2answers
6k views

Fan is always on, CPU usage is rather low and can't find the fan or thermal_zone proc files

I have an Asus N76VB notebook with Ubuntu 14.04 and TLP for power managment. However, the fan is always on. It's not really loud, but it's annoying. My CPU usage is around 1-2%. It's clocked at 1.20 ...
4
votes
1answer
97 views

Does Ubuntu Phone support RTC Alarm?

Is /sys/class/rtc/rtc0/wakealarm present? Does phone wake up after setting it when it's completely switched off? What does it do when the phone is locked? Will it be supported in hardware by all ...
0
votes
2answers
631 views

Ubuntu 14.04 live disk only starts up with acpi=off

I recently tried to run ubuntu 14.04 on a USB drive as I wanted to decide whether it is worth upgrading to(my netbook now has 12.04 on it). However, when I tried to start ubuntu up from the USB ...
1
vote
1answer
326 views

VirtualBox Ubuntu 12.04 LTS guest cannot shutdown

I have a virtualbox guest running Ubuntu 12.04 LTS. The host is also an Ubuntu 12.04 LTS. Virtualbox running is version 4.3.10 When I'm running in the guest and click on the shutdown button, nothing ...
1
vote
1answer
249 views

Computer reboots instead of shutdown, only after suspend

I have posted seen this on the Ubuntu forums (http://ubuntuforums.org/showthread.php?t=2175057), but its not drawing a solution there so I am posting here. Problem is when I shutdown my computer it ...
3
votes
1answer
346 views

How can I prevent anything from happening when I shut the lid of my laptop?

I have a laptop running 12.04 Server Edition, and I'd like to be able to shut the lid without anything happening. I need it to remain pingable and sshable and continue to run all of its daemons and ...
1
vote
0answers
125 views

acpi_listen doesn't detect events

I can run acpi_listen, then press all of the function keys (eg Fn+F5 to dim the screen backlight), but no events are reported in acpi_listen. How can I get acpi_listen to report the acpi events that ...
2
votes
0answers
355 views

How can I disable CPU C2 and C3 states options?

I have a DELL XPS 13 9333. As you can read here, it produces an annoying coil whine under some circumstances: http://en.community.dell.com/support-forums/laptop/f/3518/t/19538215.aspx Someone ...
2
votes
0answers
202 views

Unexpected Command Completion Code

I am getting the error xhci_hcd 0000:07:00.0 ERROR: unexpected command completion code 0x11 on Ubuntu 13.10. The error occurs when I resume my system from being suspended. It also happens on my tty ...
2
votes
0answers
219 views

Module acpi not found

My OS is 12.04, I'm not able to suspend and wake up my PC at given time, or better if I run sudo rtcwake -m mem -s 120 My PC enter suspend mode and the power-on light turns up after 2 minutes, but ...
1
vote
1answer
121 views

Which service (ubuntu 13.10) is putting my laptop to sleep when I close the lid?

I run a netinstall of ubuntu 13.10. When I was on 12.10 I had a a sleep.sh script in /etc/acpid that would be invoked by the closelid event in /etc/acpid/events and then basically run pm-suspend. I ...
2
votes
1answer
404 views

Why does “echo EHC1 > /proc/acpi/wakeup” change Enabled to Disabled

I have a very basic question. I understand what echo does, and how it directs a string to the file /proc/acpi/wakeup. My question is what is actually happening when I direct the word EHC1 to ...
1
vote
0answers
101 views

acpi-support script missing in rc.d

I've just had a look inside the directories /etc/init.d and /etc/rc.d . I have a 13.10 machine, upgraded from 13.04. Then I saw that this link was missing. S99acpi-support -> ...
1
vote
1answer
2k views

Ubuntu 13.10 won't suspend

Have been thru several threads with similar issues, but no resolution. ASUS X201E, freshly upgraded to Ubuntu 13.10. Suspend from any menu does not work since upgrade. When I select "Suspend" from the ...
1
vote
1answer
2k views

/etc/acpi/powerbtn.sh for full shutdown menu?

I'm having the same problem as 13.10: Power button shuts down directly and Ubuntu 13.10 with Cinnamon Desktop Environment This answer seems to be the way to go, but I don't know what the command is. ...
1
vote
1answer
892 views

How to disable powerbutton in 13.10 minimal?

I have my IR receiver connected to the physical power button for turning on and there's a separate remote button for turning off. How to disable the power on button from shutting down the computer? ...
3
votes
2answers
2k views

Change power button to 'Ask' in Xubuntu 13.10

I have recently installed Xubuntu 13.10 on my Vaio vpcea making me a Linux beginner. The problem is that laptop's power button is right on the edge of the bezel making it far too easy to press ...
3
votes
3answers
420 views

Remap keyboard Ubuntu 12.04; Asus Q500A

I have an Asus Q500A with win8 and Ubuntu 12.04 64 bit with linux kernel 3.8.0-32-generic. I am using gnome-panel, and xserver-xorg-lts-raring. I have been experiencing problems with the keyboard ...
3
votes
2answers
6k views

How to prevent the Power button to shutdown directly the system?

I did a fresh install of Ubuntu 13.10. When I press my power button, my computer immediately shuts down. In Ubuntu 13.04 I got a nice menu, where I could choose what to do. It is gone now and I want ...
1
vote
1answer
304 views

Can anybody help me resolve these FWTS issues?

See the list below. I have no clue where to start. I ran firmware testsuitelive (USB). Some tests failed, which might explain the issues I'm having with my machine (constant reboot after shutdown or ...
1
vote
1answer
723 views

Upon installing Ubuntu 13.04, “acpid : exiting”

I tried to install Ubuntu 13.04 from DVD. I choose to install it alongside Window 7. The DVD was it self ejected and i got a black screen and acpid : exiting was written on upper right corner. How ...
3
votes
2answers
1k views

Enable acpi on Ubuntu 13.04 ARM ChromeBook

I've just recently installed Ubuntu 12.04 onto my Samsung ARM Chromebook, using http://chromeos-cr48.blogspot.com/2013/05/chrubuntu-one-script-to-rule-them-all_31.html, then upgraded to 13.10. I'm ...
1
vote
0answers
274 views

acpi=off needed when BIOS graphics mode is switchable

I just flashed my laptops bios to newest version and now I have the option to define how i'd like to set my graphic mode. I have the option to check "integrated" and "switchable". The difference seems ...
1
vote
0answers
243 views

Why time taken to charge the laptop battery increases rapidly when it almost full?

When my laptop is charging at first it charges normally. But when its charged about 98% time remaining begins to increase why is this?
1
vote
1answer
3k views

My power button doesn't work under LXDE. How can I fix this?

Ever since I switched to LXDE my power button won't work anymore. I would love to be able to display a fancy logout menu like the one in Unity and similar DEs. How can I achieve this?
2
votes
0answers
282 views

ACPI on Asus NV56V Ubuntu 13.04

i'm rather new to ubuntu and just made a fresh install of ubuntu 13.04 alongside windows 8 on my new asus N56V, however i couldn't make it shut down, reboot or logout properly which i taught was odd, ...
0
votes
1answer
972 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
1k 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
419 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 ...