Questions tagged [acpi]

ACPI (Advanced Configuration and Power Interface) is a standard for power management.

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votes
2answers
9k views

ACPI region does not cover the entire command/response buffer

I'm experiencing system freezes and looking in the journal I see kernel (4.14.15-1-MANJARO) errors such as: kernel: tpm_crb MSFT0101:00: [Firmware Bug]: ACPI region does not cover the entire command/...
2
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1answer
3k views

SMBus/IPMI/GenericSerialBus write requires Buffer of length 66, found length 32

today my nas debian 9 based started to write out this error in the startup phase, the same is reported in red by calling journalctl -xe: ACPI Error: SMBus/IPMI/Generic write requires Buffer of length ...
1
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3answers
2k views

How to obtain/cat CPU Core Temp from ISA Adapter?

I'm building a script in Linux to monitor my active core temps; Then manually enable the ACPI Fan on the event when the CORE 0 TEMP hits 40 Degrees. I have already built the fan script that works ...
0
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0answers
179 views

ACPI Volume Control (not brightness)

For some reason, upon upgrading to Ubuntu 16.04, my volume and brightness media controls are no longer registering as XF86 keys. I created an acpi event and action script for my screen brightness in /...
2
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0answers
257 views

Ubuntu 14.04 - Slow Boot [closed]

I have an ubuntu 14.04 server, the server will be in a parking to manage it with a software. When I turn ON ACPI, my server took more than 2minutes to boot, else it takes only 30-40secondes. I need ...
2
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1answer
1k views

How does the Linux kernel retrieve ACPI tables from the system firmware?

When the Linux kernel boots, it retrieves the ACPI tables from the system firmware. After the system has booted, I can retrieve the tables from the running kernel memory with utilities such as ...
1
vote
1answer
625 views

ACPI kernel parameter options for HP ProLiant DL380 G5

Heavily related to a question on the sister site (https://serverfault.com/questions/874943/debian-9-black-screen-during-install), I have recently picked up an HP ProLiant DL380 G5 and attempted to ...
3
votes
1answer
63 views

Transfer Virtualbox Linux distro to physical machine - Shutdown / reboot problems

Maybe it serves to describe my current situation first: installed ubuntu on virtualbox (btrfs) created btrfs partition on my laptop booted on a live distro, used btrfs send/receive to transfer the ...
1
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0answers
982 views

Hardware Frequency Steps - Intel P-State vs ACPI CPUFREQ

I have Intel Xeon Phi 7210 running CentOS 7 with kernel 3.10.0-514.el7.x86_64. I am comparing what frequency steps are available when I boot system into intel p-state vs when the system uses acpi ...
1
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3answers
3k views

kworker consumes high cpu for external hard drive

kworker process consumes 75% of one CPU. The offending kworker thread is related with ACPI stuff: sudo cat /proc/THE_PID_OF_KWORKER_PROCESS/stack [<ffffffff85c0c705>] acpi_ns_evaluate+0x1bc/...
0
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1answer
1k views

ACPI: power off vs shutdown

I'm running a virtual machine with CentOS 7 guest. ACPI daemon is started. When I shutdown the hypervisor, then guest operating system powers off. I can see in guest's syslog that it was notified ...
2
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0answers
403 views

Not able to boot to arch because of acpi bios error [closed]

As the topic says I am not been able to boot to my arch. It shows some acpi bios error. I am attaching the image of it. It may happen due to xf86-input-mtrack I installed from AUR package. After that ...
6
votes
2answers
3k views

Immediate wake-up after suspend

My Debian 9 system wakes up in 2-5 seconds after it enters into the sleep mode (suspend to RAM) manually or automatically. The problem always occurs no matter how the sleep mode is invoked: by lid ...
0
votes
1answer
2k views

Debugging an unresponsive touchpad on Lenovo Ideapad 320-15ABR

I have a Lenovo Ideapad 320-15ABR, (I found the exact model name with dmidecode). I'm having trouble getting the touchpad to work. It's not showing up in xinput --list or cat /proc/bus/input/devices. ...
2
votes
1answer
2k views

How to ignore lid switch action?

When I close the lid of my laptop, the computer shuts down immediately and won't power on again. I need to take a screwdriver and disconnect-reconnect the battery in order to make it power on. I ...
1
vote
1answer
4k views

Difference between suspend by echo “mem” > /sys/power/state and by suspend in XFCE?

I have a (trivial) custom service which runs on resume from ACPI S3 ("suspend"), the script simply wakes up a server by WOL (Wake On LAN). This is driven by systemd, the script resides in /etc/...
1
vote
1answer
725 views

Brightness key issue on Lenovo P71

I've got a Lenovo Thinkpad P71 with the NVidia Quadro P3000, that has the "Discrete Graphics" setting on the BIOS, and I'm using the proprietary drivers on Debian 9. For some reason, the brightness ...
3
votes
1answer
148 views

Sysfs LCD backlight as thermal device

I have Compaq CQ60-120ec notebook. I discovered that there is a directory /sys/class/thermal/cooling_device2. The type said LCD. I tried to control the cooling device, and it dimmed my backlight on ...
1
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1answer
2k views

ASUS ZenBook - Battery is never fully charged

I have installed Linux Mint 18.2 Cinnamon (kernel: 4.10.0-32-generic) on my new ASUS UX430UA notebook. However, described behavioral was also found on other ZenBooks and other used OSes like Linux ...
1
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0answers
136 views

ACPI Warnings in Debian 8 on ASUS EEEPC 1018P power crashes

running mesg appears the following warnings: ACPI Warning: SystemIO range 0x0000000000000828-0x000000000000082F conflicts with OpRegion 0x0000000000000800-0x000000000000087F (\PMIO) (20140424/...
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0answers
336 views

Map ACPI events to X keys (or to custom commands)

Some of the multimedia keys on my Lenovo X1 Carbon aren't recognized by xev. Each time I press the "volume down" key, for example, I get an output that looks like: FocusOut event, serial 34, ...
2
votes
1answer
538 views

Understanding ACPI wake-up codes / DSDT (Differentiated System Description Table) of Thinkpad T430s BIOS [duplicate]

I'd like to trim wakeup events of my laptop. Could someone please explain me these 4 letter codes - which devices do they actually represent? $ cat /proc/acpi/wakeup Device S-state Status Sysfs ...
3
votes
0answers
541 views

Only one of the two processor cores is recognized by Linux Mint on my laptop

My computer seems to have only one of the two processor cores operating. inxi CPU~Single core Intel Core2 Duo T6400 (-UP-) speed~2000 MHz (max) Kernel~4.4.0-53-generic x86_64 Up~2:40 Mem~1180.8/...
1
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0answers
294 views

Fans on 100% after Bumblebee Install on Fedora 25

Fresh install of F25. Updated everything. I installed bumblebee following the instructions here: https://fedoraproject.org/wiki/Bumblebee . Closed source managed drivers w/ multilib support. Optirun ...
11
votes
1answer
917 views

ACPI group/action undefined: processor / LNXCPU

If I unplug my laptop from the AC adapter, I will get ACPI errors like these: May 07 21:45:04 veritas root[7067]: ACPI group/action undefined: processor / LNXCPU:00 May 07 21:45:04 veritas root[7076]:...
1
vote
1answer
159 views

Serial port only recognized with acpi=off boot flag

I have a computer with a skylake motherboard (ASRock IMB-195), and I'm trying to use the on-board serial port (/dev/ttyS0). I'm using Ubuntu Server with Linux Kernel 4.4.0-72. If I boot with acpi=off,...
2
votes
0answers
1k views

dmar: Failed to find handle for ACPI object

I'm using a Lenovo B50-50 with this specs: Intel Core i3-5005U CPU @ 2.00GHz × 4 Intel HD Graphics 5500 (Broadwell GT2) hard disk 500 GB Ram 4 GB I'm currently running Debian(Linux debian 3.16.0-4-...
8
votes
1answer
37k views

ACPI Exception: AE_NOT_FOUND infinitely on startup

I just did a system update and upgrade on my Arch desktop. Just after getting past GRUB, I get this scrolling on the screen forever: ACPI Exception: AE_NOT_FOUND, while evaluating GPE method [_L6F].....
0
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1answer
406 views

ACPI not working on Debian Stretch on machine CSL Intel NUC Celeron N2820-3

I'm using a CSL Intel NUC Celeron N2820-3 machine since 2015 January as a file server at home. It worked well with Wheezy and Jessie, but some months ago I've updated it to Stretch. Since the update ...
0
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1answer
84 views

how to trace shutdown event workflow on virtualbox

Hi I've installed debian 9 using virtualbox. I customized kernel with ACPI support as below Power management and ACPI options ---> [*] ACPI (Advanced Configuration and Power Interface) ...
1
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0answers
82 views

How to extract ACPI tables from .ISO file?

I am in need of ACPI tables (DSDT) that comes with Linux ISOs. Why? Because i am compiling a custom kernel which includes modules that require certain things to be enabled in the ACPI, and the ...
6
votes
1answer
741 views

What does ACPI NMI LINT mean? and Why it changes across kernel version?

I'd like to understand what the following lines mean [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x0]) [ 0.000000] ACPI: NMI not connected to LINT 1! [ 0.000000] ACPI: LAPIC_NMI (...
1
vote
1answer
2k views

How can I get more information about ACPI devices?

Recently I noticed that my Linux installation was loading at least one module that seems unnecessary to my system. The module in question is fjes, for the FUJITSU Extended Socket Network Device Driver....
3
votes
0answers
365 views

Is it normal that a modalias matches various devices?

Recently another user asked why they were loading the fjes module. While I was trying to understand that question, I realized that Linux is also loading the same module for me. Now, this is the ...
0
votes
1answer
480 views

What is the difference between BAT0 and ADP0 on the linux kernel?

Well I'm trying to identify a device in my program so I can classify and get the power status of a device. The thing is that I'm getting different values on the same OS but using different machines. ...
0
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0answers
1k views

Enable/Diagnose HDMI sound failure on Intel Bay Trail Atom Z3735F “Compute Stick”

I installed Debian Stretch (Kernel 4.8.0-1) multi-arch net-inst successfully to the eMMC, with Grub, and dual-boot to the original OS (where the sound does work). Well, with half the peripherals. ...
1
vote
1answer
662 views

Backlight slider no longer works in Linux Mint

I'm running Linux Mint 18 Cinnamon on my Asus X555LA, which also has Windows 10 installed on another partition (the backlight works perfectly in Windows). However in Linux Mint: there's already an ...
1
vote
1answer
497 views

HP Wireless Button, ACPI WLBU AE_NOT_FOUND

What could cause "AE_NOT_FOUND", when the device and method are both defined? dmesg error: [ 9.925882] ACPI Error: [WLVD] Namespace lookup failure, AE_NOT_FOUND (20160422/psargs-359) [ 9....
2
votes
0answers
624 views

Brightness control keys not working in linux

I recently bought the Lenovo 500s-14isk and it came with windows 10 installed. Yesterday, I installed in dual boot mode Elementary OS. Didn't notice anything wrong during the installation, but the ...
2
votes
2answers
241 views

Triggering a gui from an acpi event

I've made a tkinter app to handle the power button press, but it doesn't launch when it should. Although if I use echo hello>>~/junk as the acpi action, it adds a hello to junk for every power ...
0
votes
1answer
467 views

ACPI problem with MSI laptop

I have a MSI laptop, but i can't use any distribution whitout disabling acpi. I would like to know if there are a distribution compatible with MSI ACPI. Distribution not working with acpi : ...
1
vote
0answers
846 views

USB devices missing from /proc/acpi/wakeup

I'm currently running Ubuntu 14.04 (specifically the Kodibuntu port) on a Gibabyte NUC like mini pc. My kernel version is 3.13.0-55-generic. I'm having trouble enabling wake-up from suspend via my ...
3
votes
0answers
449 views

Second battery either not charging or charge not detected

I have installed Linux on my laptop and running it as the only system. It displays both batteries on the desktop UI, with the first one on 100% and second 0%. When it is discharged it just discharge ...
1
vote
1answer
978 views

Fedora 24 : acpi=off --> Can't use graphic card nvidia

I'm using actually fedora 24, but and several other distribution like ubuntu gnome 16 for example, I don't have other choose than disable acpi. If i don't do that I can't used the distribution. The ...
1
vote
0answers
440 views

Linux detects sata ssd only with ACPI=off, but windows always does

I'm trying to install Linux on my new Intel 525 SSD (240gb), however none of the linux installers detect it. I've tried Debian Testing, Gentoo, Gparted live, and Arch Linux live usbs - none of them ...
1
vote
2answers
904 views

acpi_video0 brightness no effect on the screen

Currently, I am trying to change the brightness of my Ubuntu system. This is my first time using Ubuntu. I couldn't change the brightness using the fn key. This is because my keyboard don't have the ...
2
votes
0answers
132 views

acpi rtc wakeup on battery (Debian testing)

Setting an rtc alarm via /sys/class/rtc/rtc0/wakealarm leads to successful resume from hibernate when this Asus laptop is plugged in, but when on battery it stays powered off (but resuming from ...
3
votes
1answer
490 views

Display and network card not working if booted without a display

I'm facing a kind of a mysterious problem. We have a PC with Debian 8 installed. It boots fine and works well, unless I try to boot it wihout a display. So, I shutdown the PC, unplug display and then ...
4
votes
2answers
5k views

Controlling display backlight manualy

After a fresh new install of Debian, I can't control my displays brightness via the "xbacklight"-tool ("No outputs have backlight property"). While this is curious enough (since their was a time it ...
1
vote
1answer
545 views

Booting with acpi_osi=Linux fixes fan control but breaks brightness keys

I am running Debian 8 with the 3.16 kernel on an eeePC 1001P. I have a fair bit of Linux experience but unfortunately this one has me and my google-fu at a loss. Initially almost everything worked ...