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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[1. 398289]ACPI PCC Probe Failed

I have just installed ubuntu 14.04 today. After some time I decided to upgrade to 14.10 and now when I try to boot it shoes me [1. 398289]ACPI PCC Probe Failed; and then a black screen and I ...
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7 views

acpi call command in rc.local is not being executed in 14.04

I want to disable my discrete AMD graphics on my ubuntu 14.04. So i went through some threads and SO posts , some of them were : 1) acpi_call github library 2) HybridGraphics Ubuntu Documentation ...
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17 views

Problem with acpi pcc probe when starting up Ubuntu

I recently installed Ubuntu, but had trouble getting it to boot (when I started the computer I only saw a blinking cursor). I then fixed this, I think, by using a boot-repair software, and it gave me ...
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1answer
26 views

Frequency scaling

I'm trying to get the frequency of my CPU on max I can't seem to change anything via cpupower or cpufreq-utils, or even by modifying the files myself at /sys/devices/system/cpu/intel_pstate So I ...
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12 views

ACPI special keys all have the same code

I've ran into the problem of my brightness keys (and everything but my volume keys) not working. I've been following this guide on how to fix them: https://help.ubuntu.com/community/LaptopSpecialKeys ...
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1answer
27 views

Is there a problem with the compatibilaty of my chipset?

I've recently built my own PC and i want to run Ubuntu on it. however when i try to boot ubuntu from my usb drive it says: ACPI PCC probe failed I tried installing with nomodeset and the install ...
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68 views

Error during boot Ubuntu. (ACPI)

I was faced with next problem: When I boot my pc( with os Ubuntu 14.04 lts) the system showed me this: ACPI PCC probe failed USB 1:1 3:1 cannot get freq at ep x084 Module: radeon: unknown rela ...
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43 views

Laptop doesn't suspend when lid is closed - No state change

I have a problem about my laptop that doesn't suspend when i close lid. First the story. I bought a new Acer e3-112. It camed with win8.1 and i upgraded it to win10. Then i shrinked the hdd and ...
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92 views

ACPI PCC probe failed when “Try Ubuntu 15.04”

I installed Ubuntu 15.04 from pendrive on my notebook Asus and it worked fine for about 7 months. One day the system couldn't start anymore (because of some update maybe?) so I decided to reinstall ...
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467 views

Won't boot, ACPI PCC probe failed

After updating, my desktop machine will no longer boot. It shows the message ACPI PCC probe failed, starting version 219 and then stops in with a command prompt and some text about it being in ...
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18 views

Where are the default hardware button (ie. volume increase, screen brightness, play/stop music) scripts

I have installed Ubuntu 15.04 on my Thinkpad x220t and was pleasantly surprised to find that the tablet button for rotating the screen works out of box. However, while it does rotate the screen it ...
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148 views

/dev/sda1: Inodes that were part of a corrupted orphan linked list found

I was using my Ubuntu 2015.04 (with ecryptfs-encrypted user home) laptop normally when suddenly, the hard drive became read-only. I rebooted and now it is stuck on this: [ 0.703206] ACPI PCC ...
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38 views

Asus Motherboard + Ubuntu = unstable

I upgraded my setup with an ASUS p9x79 PRO motherboard and was not able to run Ubuntu (15.04) properly using all my cores and hyper-threading. If I do not run Ubuntu with acpi=off (e.g. with ht ...
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1answer
64 views

systemd: How to modify the HandlePowerKey action with a custom command?

My headless server has a power button. When the user presses it, I want the server to respond with a brief beep, then shutdown the server. The system should only beep when manually pressing the ...
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37 views

Ubuntu Freezes at Ubuuntu logo on startup

Recently I've installed Ubuntu on my Asus U31JG laptop using an NVIDIA and Intel graphic adapter. I did the installation like 10 times or more because of this freezing problem. Ubuntu installation ...
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136 views

ACPI PCC probe failed after Nvidia instalation and the keybaord is broken

I get the APCI PCC probe failed starting version 219. I know this is harmless. But ACPI failing breaks my keyboard (it might be using the ACPI bus). The option of "enable function keys" won't work ...
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62 views

How to trace what is invoked on ACPI events?

My question is not how to catch ACPI events, but how to track out what happens when one occurs. I recently got interested in ACPI events. I wonder how to find out what script is triggered by ACPI ...
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116 views

How to remap Fn Key combinations?

I want to do some advanced key mapping on my Sony VAIO. It involves the Fn key. This is what I want to do: I want to do a Fn key inversion, ie to remap: [Fn+ F2toF7] on my keyboard to [F2 to F7] soft ...
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81 views

“acpi=off” works, but “acpi=ht” does not, what does that mean?

I had problems installing and running any Ubuntu distro (I tried every major version from 12 to 15...). If the setup would not freeze, the system itself would freeze later on. Finally I set "acpi=off" ...
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1answer
241 views

ACPI PCC - Acer E5-511

I bought a notebook ACER model Aspire E 15 (E5-511-C7NE). The default OS was windows 8.1, I have formatted it and installed Ubuntu 15.04. If ACPI is ON I receive the message: ACPI PCC probe failed. ...
2
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1answer
21 views

Making screen brightness change smoother

I am using Ubuntu 14.04LTS on Lenovo G580. The Function key is working fine for brightness change, but I want to make the change smoother, i.e. reduce the step change in brightness per key press. Any ...
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1answer
66 views

Weird error appearing randomly in terminal

I installed a few hours ago Ubuntu 14.04 and since I started using it I'm seeing a weird error always appearing in terminal : [ 3099.912152] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type ...
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1answer
214 views

Ubuntu 15.04 does not shutdown properly

I recently installed Ubuntu 15.04 it works nicely but id does not shut down. If I manage to press delete key (it freezes quick) while it shut down it says this: starting version 219 error:/dev/sdf: ...
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1answer
451 views

Ubuntu Gnome freezing during startup

This morning I installed Ubuntu Gnome 15.04. I installed a few applications and restarted the computer a couple times without issue. I just ran updates though, and when I restarted the computer ...
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1answer
316 views

Install of Ubuntu 15.04 hanging at “ACPI PCC probe failed” and then “failed command: Read Fpdma Queued”

I have seen many people have this problem during installation, but nobody has fixed this issue. It occurs during first time installation of 15.04. I am getting ACPI PCC probe failed and then failed ...
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1answer
422 views

boot problem after upgrade Ubuntu 14.10 to 15.04

I upgraded Ubuntu14.10 to 15.04, using software updater. After finished it , I restart. Now on a restart it fails to make it to the login prompt. The system looks to be in a cycle of failure and I see ...
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1answer
101 views

My cpu slows down after a while and does not recover

Sometimes, and I can't reproduce it (but it happens often enough - a few times a week at least) my cpu slows down below its prescribed minimum. This is an example cpufreq-info output from a minute ...
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1answer
291 views

Cannot boot 14.04 Ubuntu

I am new with Ubuntu. My new company gave me a Dell Latitude E5440 laptop running Windows 7 64 bit. I am trying to install Ubuntu but neither 12.04 nor 14.04 boot. The common Error that I take on the ...
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2answers
1k views

Start problem in ubuntu 15.04

I have this problem with my pc: [ 0.545187]ACPI PCC PROBE FAILED. STARTING VERSION 219 [ 240.096017] INFO: task systemd-udev:376 blocked for more than 120 seconds. [ 240.096060] Not tainted ...
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48 views

Relation between thinkpad-acpi and tp_smapi?

In my 14.04 on T400 laptop, what are the relation between the two modules thinkpad-acpi and tp_smapi? Are they both drivers for the power devices? thinkpad-acpi is said to be driver. So is tp_smapi? ...
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1answer
68 views

Suspend failed once and forever?

I incidentally closed the lid and the system went to suspend (ubuntu 14.04) but seemed lasted forever. So I forced quit the suspend. After I restarted ubuntu and let it suspend, it failed to do so ...
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2answers
1k views

What does “ACPI PPC Probe failed Starting version 219 ” mean exactly?

I've recently installed Xubuntu 15.04 on my desktop The video playback was kinda slow and buggy so I installed the nvidia drivers (the gpu is an onboard 7025) As some people, I get the "ACPI PPC ...
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918 views

{4.047432} ACPI PCC probe failed on Ubuntu 15.04 default boot

I've installed ubuntu 15.04 today & got this error. [4.047432] ACPI PCC probe failed on Ubuntu 15.04 default boot Don't know what happened I can't get to login screen. From advance option i'm ...
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0answers
189 views

Slow boot on Ubuntu 15.04 during ACPI

The time seems to be wasted mainly between these two log lines. What could it be waiting for ? Apr 30 01:19:22 terodde kernel: [ 0.907820] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query honored via ...
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1answer
221 views

Can't boot Ubuntu live cd

For some reason i can't boot Ubuntu live cd on my desktop pc while installation media works perfectly on laptop. I'm getting this error : Any suggestions?
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58 views

Can't keep monitor backlight off with xset

I use xset dpms force off and the backlight turns off but it turns back on in a minute on its own. The command setterm -powersave powerdown gives the message: setterm: cannot (un)set powersave ...
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1answer
130 views

Ubuntu 14.04.1 Bug - issue with my on-board networking adapter and the ACPI of my computer

This old bug affects me severely, I say old bug because it is very well documented in the following link: Bug report This bug results in two things: My on-board networking doesn't work, and trying ...
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1answer
317 views

ACPI Package problem on boot Ubuntu 14.04.02

I've been using Ubuntu for pretty long time and am quite experienced with it. But recently I discovered a new problem that I can't resolve on my own. My system is as follows: AMD E-450 1.65 AMD ...
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1answer
63 views

Shutdown on idle using ACPI buitin feature

Inbuilt ACPI feature suspend the Ubuntu pc after specific period. What I want to achieve that in place of suspend it should shutdown the pc completely after predefined idle time. Can anybody help how ...
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0answers
225 views

Dell e7440, sleep sometimes fails, kernel logs show ACPI errors

I have a new Dell Latitude E7440 with Ubuntu 14.04.2. Sometimes (but not always), after sleeping, I cannot resume, as after trying to resume one of the following happens: I can move the mouse but ...
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62 views

acpid client gets disconnected and freezes xserver

Xserver on my Ubuntu 14.04 laptop periodically freezes. When I switch to another tty, dmesg shows message like: acpid client 1385[0:0] was disconnected Then if I switch back to Ctrl+Alt+F7, ...
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73 views

Ubuntu Server 14.04.2 LTS restarts continuously

is my first time asking here, so, congrats for the forum, is very instructive! I have an Ubuntu Server 14.04.2 LTS (64bits), and when Im working with that, I don't know exactly why, it restart again ...
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2answers
874 views

Nvidia Driver Install Error - “Kernel module failed to build.”

I'm trying to install this because Nouveau / the default driver, is unstable for me, and eventually results in GPU lockups unless I'm running low graphic mode. Got this error while trying to install ...
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1answer
148 views

Ubuntu doesn't reboot / shutdown properly

root@pcu:~# uname -a Linux pcu 3.16.0-33-generic #44~14.04.1-Ubuntu SMP Fri Mar 13 10:33:29 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux After any shutdown command (shutdown, halt, poweroff, init, GUI ...
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0answers
255 views

Updated Nvidia Drivers, Now Get ACPI Error

So, I followed this guide and got my Nvidia driver issue fixed: install nvidia driver instead nouveau Everything seemed fine until after I rebooted, then I got: [0.834825] ACPI: [Package] has zero ...
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47 views

How to permit laptop resume with lid closed

I have a Lenovo T520 that suspends and resumes perfectly on lid open/close. But I would like to be able to have rtcwake wake up the laptop during the night to perform a backup but the laptop goes back ...
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14 views

IRQ9 blocked at Bootup

Why does the message come up saying it is blocking IRQ9 at boot up. It does not seem to alter the performance. Can you help?
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146 views

Ubuntu machine waking up immediately after suspend, need help solving it!

So I've Googled a bit and it seems this is a well known issue. I just need some assistance with my particular setup. I have Ubuntu 14.04 loaded onto a machine that I use as a Plex Server. I've ...
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207 views

How to fix resume issue: usbhid 2-4:1.0: can't add hid device: -110

Since I installed an Ericsson H5321gw 3G/GPS/HSPA+ WWAN module into a ThinkPad X1 Carbon running on 14.04.02 I'm seeing issues when resuming from suspend. More specifically, login both graphical as ...
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2answers
368 views

Ubuntu 14.04 won't shut down, reboots instead

I've researched on this topic and did all of the recommendations such as editing kernel options acpi=off, acpi=noirq, acpi=force, then sudo update-grub. i also edit the bios to disable wake on lan ...