#acpi — Public Fediverse posts

Ubuntu is frozen when I use an application, the screen became black and I must turn off manually #graphics #acpi #deadlock

https://askubuntu.com/q/1570241/612

Ubuntu is blocked when I use an application, the screen became black and I must turn off manually #graphics #acpi #deadlock

https://askubuntu.com/q/1570241/612

3/ Mein Ex-Arbeitgeber hat jetzt auch was dazu. Da findet sich der Satz:

""Windows nutzt üblicherweise ACPI-Daten aus der Firmware, während Linux für die #Snapdragon-Plattform auf Device Trees angewiesen ist.""

Das klingt, als wäre das ein in Stein gemeißelte Aspekt bei #Linux – aber das ist bei Open-Source-Software wie dem Kernel ja letztlich nichts. Es gibt sogar Patches, um #ACPI zu Hilfe zu nehmen[1]. Aber das interessanteste an der dieser Patch-Submission ist:

""On current [WoA Qualcomm] laptops Linux cannot boot using ACPI due to some information missing from the ACPI tables. People are working on changing this so that for future WoA Snapdragon laptops Linux can boot using ACPI only without requiring #Devicetree.""

https://www.heise.de/news/Qualcomm-kuendigt-Linux-Support-fuer-Snapdragon-X2-an-11463854.html

[1] https://lore.kernel.org/linux-acpi/202[email protected]/

ASUS Vivobook 16 M1607KA screen and keyboard backlight flicker / random wake on Ubuntu 24.04 and alert sound #uefi #suspend #2404 #asus #acpi

https://askubuntu.com/q/1569673/612

RE: https://nondeterministic.computer/@mjg59/117243438520457593

"[…] and the internet will tell you that […] developers are incompetent and you should pass a #kernel argument that overrides this behaviour and it never did them any harm, and it probably won’t do you any harm either but it might and you might never know why your system occasionally wedges or catches fire."

A sentence I'll put aside quote it multiple times in the future, as it is applicable to a vast number of situations when it comes to #Linux (or computers in general). 😁 😄

#acpi #LinuxKernel

#ACPI #estimates: 52% battery left, you've got 10 hours remaining. Literally 5 minutes later: 49% battery left, TWO HOURS REMAINING!! 😂 — #microblogging #MicroToot: 138 characters

TIL: Schicke ich das Notebook im Akkubetrieb in den Energiesparmodus und wecke es später wieder auf, indem ich es an die Dockingstation klemme, dann erkennt xfce4-power-manager den neuen Zustand nicht (Stromquelle vorhanden), weil das ACPI-Event wohl untergeht. Dadurch gehen meine Monitore schon viel früher in den Energiesparmodus (wie im Akkubetrieb). Da hilft ein Restart von xfce4-power-manager mit der Option --restart. Dies ist ein Bug & Workaround Service-Tröööt.

#xfce #Linux #acpi

@AdrianVovk @spanezz
From my understanding (& experience), the only situation in #GNOME where a closed lid won't suspend a laptop computer is when the laptop is connected to a keyboard + external monitor (i.e. the "docking station" scenario). As soon as I remove my closed-lid laptop from a docking station, it suspends.

The exception I can think of: laptops BIOSes that only do "Modern Standby" (S0ix) instead of real S3, as LTT found out on Windows 3 years ago: https://youtube.com/watch?v=OHKKcd3sx2c

#ACPI

I wrote a blogpost about making AMD Zen3(+)-based Lenovo IdeaPads work with Linux (they have an annoying suspend/s2idle-related bug disabling the keyboard until rebooting).

It also has a section about creating ACPI fake-devices to work around "Could not resolve symbol [...], AE_NOT_FOUND" ACPI errors.

https://blog.gibson.sh/2026/06/03/ideapad-linux/

#linux #ideapad #s2idle #acpi

Found a bug with an HP Pavillon laptop, where CapsLock gets inverted upon resume from sleep by opening the lid. It'll type all-caps, even if you press CapsLock key to disable it. Impossible to unlock the screen.

Workaround I found: press left Shift (not right Shift) once to reset the state before typing the password.

Does not affect screen locking nor suspending without lid close, only when resuming by opening the lid.

Weird as hell, but HP I guess 🤷

#Linux #HP #HewlettPackard #laptops #ACPI

Looking at #BadAML again, I think #ACPI really means Arbitrary Code and Pointer Injection.

Hey #Mastodon ,
Do you want to see a #MotherBoard manufacturer that runs like 💩 with their #ACPI tables?
I present you #Gigabyte !
3 #BIOS revision that goes worst each time (and I test only officially released, not beta).

The version 11 is just unable to start the #Linux #Kernel properly.
I'm quite sure #Amd will be thrived to know they destroy their platform..

And gigabyte support? You tell me,
"We only support #windows .
(Also identifiable as trash fire reason)

1/2

Пишем свою OS на Zig: Первый релиз с многоядерностью, FAT32 и скриптами

11 000 строк кода, 95% Zig, 0% стандартной библиотеки: история создания NovumOS с поддержкой SMP, FAT32 LFN и Huge Pages. Привет, Хабр! 👋 Меня зовут Антон, и я хочу поделиться историей создания своей собственной операционной системы. Это моя первая статья и первый серьезный релиз системы ( v0.20 ). Многие разработчики мечтают написать свою операционную систему. Обычно этот путь заканчивается на выводе "Hello World" в VGA-буфер. Я тоже начинал с малого (C# COSMOS), потом уходил в Ассемблер, бросал, возвращался... Но в этот раз я решил пойти до конца. Моей целью было не просто запустить ядро, а создать современную, масштабируемую архитектуру на современном языке. Встречайте NovumOS ...

https://habr.com/ru/articles/995136/

#Zig #OSDev #Kernel #операционные_системы #x86 #SMP #multicore #paging #FAT32 #ACPI

Highlights from the main #acpi merge for #Linux 7.0:

""This one is significantly larger than previous ACPI support pull requests because several significant updates have coincided in it.

First, there is a routine ACPICA code update, to upstream version 20251212, but this time it covers new ACPI 6.6 material that has not been covered yet. Among other things, it includes definitions of a few new ACPI tables and updates of some others, like the GICv5 MADT structures and ARM IORT IWB node definitions that are used for adding GICv5 ACPI probing on ARM (that technically is IRQ subsystem material, but it depends on the ACPICA changes, so it is included here). The latter alone adds a few hundred lines of new code.

Second, there is an update of ACPI _OSC handling including a fix that prevents failures from occurring in some corner cases due to careless handling of _OSC error bits.

On top of that, the "system resource" ACPI device objects with the PNP0C01 and PNP0C02 are now going to be handled by the ACPI core device enumeration code instead of handing them over to the legacy PNP system driver which causes device enumeration issues to occur. Some of those issues have been worked around in device drivers and elsewhere and those workarounds should not be necessary any more, so they are going away.

Moreover, the time has come to convert all "core ACPI" device drivers that were still using struct acpi_driver objects for device binding into proper platform drivers that use struct platform_driver for this purpose. These updates are accompanied by some requisite core ACPI device enumeration code changes.

Next, there are ACPI APEI updates, including changes to avoid excess overhead in the NMI handler and in SEA on the ARM side, changes to unify ACPI-based HW error tracing and logging, and changes to prevent APEI code from reaching out of its allocated memory.

There are also some ACPI power management updates, mostly related to the ACPI cpuidle support in the processor driver, suspend-to-idle handling on systems with ACPI support and to ACPI PM of devices.

In addition to the above, bugs are fixed and the code is cleaned up in assorted places all over.

[…] ""

https://git.kernel.org/torvalds/c/d84e173311c4f0b0300755e6445f3224d252eeed

#Kernel #LinuxKernel

電源ボタンで自動シャットダウンを抑制

https://matoken.org/blog/2026/02/03/do-not-auto-shutdown-with-power-button/

Под капотом ACPI. Современное управление питанием

Как-то при разработке UEFI мне посчастливилось разбираться с таблицами описания системы в исходниках ASL (ACPI Source Language). Тема оказалась не тривиальная и моего багажа в несколько лет опыта, достаточно плотной embedded-разработки, не хватало для полного понимания работы подсистемы ACPI (Advanced Configuration and Power Interface). Поэтому пришлось исследовать доступные материалы на тему. В процессе поиска информации заметил, что очень мало русскоязычных статей на эту тему – а если и есть, то они в основном рассказывают о том, как включить какое-то оборудование на раннем этапе загрузки системы, а не дают понимания, как это устроено. Поэтому решил попробовать написать об устройстве ACPI, тем более что тема достаточно сложная для понимания – одна лишь спецификация ACPI занимает более 1200 страниц (на момент написания статьи). А некоторые даже и не знают о её существовании.

https://habr.com/ru/companies/icl_group/articles/990088/

#ACPI #ASL #AML #ACPI_Source_Language #ACPI_Machine_Language #OSPM #управление_питанием #ACPI_namespace #BIOS #OC

NetBSD и NVIDIA Optimus

Чтобы задать уровень выдаваемой дичи сразу на весь 2026 год вперед, я написал эту замечательную статью.

https://habr.com/ru/articles/984894/

#netbsd #acpi #gpu #optimus #nvidia #kernel #kernel_module #kernel_development

Milk-V Titan – A $329 octa-core 64-bit RISC-V mini-ITX motherboard with a PCIe Gen4 x16 slot

https://web.brid.gy/r/https://www.cnx-software.com/2026/01/12/milk-v-titan-a-329-octa-core-64-bit-risc-v-mini-itx-motherboard-with-a-pcie-gen4-x16-slot/

My #Framework woke up too easily, and I wanted to make it sleep through keyboard and lid events. Here's how I did that, and how that made me rediscover that #ACPI quite likely is as misdesigned as it is on purpose (of course, by #Microsoft).
https://blog.tfiu.de/waking-the-framework-up-and-not.html
#zuengeln

История одного патча II: приключения в FreeBSD

Продолжение истории с зависшей батареей, рассказываю что бывает если постоянно заимствовать пусть и открытый, но все же чужой код.

https://habr.com/ru/articles/960300/

#freebsd #acpi #батарея #батарея_ноутбука #си

Pro Tip:

If you computer, be it #laptop or #desktop under #linux has issues with sleeping or other similar activities, either find someone else or learn to do yourself, dump your #ACPI tables, decompile them, and have a look at the sleep procedure. And anywhere else you're having problems, but especially sleep. #OEM s basically don't test their ACPI so things can be incredibly broken, and loading your own ACPI code after the machine is running can fix so many issues. Like Sleep.

https://wiki.archlinux.org/title/DSDT

"The ASUS Gaming Laptop ACPI Firmware Bug: A Deep Technical Investigation"

#ASUS #Firmware #Stutter #Crackle #ACPI #Strix #Scar #Zephyrus

https://github.com/Zephkek/Asus-ROG-Aml-Deep-Dive

[Перевод] Как я обнаружил в ноутбуке Dell Inspiron баг ACPI, одолевавший меня восемь лет

Представьте, что вы закрываете крышку ноутбука, чтобы он ушёл в сон, однако вместо этого он перезагружается. Не каждый раз, но достаточно часто для того, чтобы выводить из себя. Вы пытаетесь сохранить свою работу, но машина решает, что нужно начинать заново. В течение восьми лет такой была реальность моего взаимодействия с Dell Inspiron 5567. Этот необъяснимый баг возникал в каждой установленной ОС. В статье я расскажу историю о том, как погрузился в исходный код прошивки и обнаружил единственную команду-виновницу.

https://habr.com/ru/articles/948302/

#acpi #acpi_s3 #dell #dell_inspiron

FreeBSD, ноутбук и перегрев

Делюсь одним малоизвестным решением проблемы с перегревом, коль уж судьба заставила использовать эту редкую ОС на ноутбуке.

https://habr.com/ru/articles/943212/

#freebsd #acpi #перегрев #laptop #ноутбук #bsdсистемы

Interesting read

How I discovered that Bill Gates monopolized ACPI in order to break Linux

https://enaix.github.io/2025/06/03/acpi-conspiracy.html

#linux #acpi #windows #microsoft

「Windows 11 22H2/23H2」に定例外パッチ、「ACPI.sys」の「0xc0000098」エラーに対処／2025年5月のセキュリティパッチ「KB5058405」が適用できない場合に
https://forest.watch.impress.co.jp/docs/news/2018932.html

#forest_watch_impress #Windows_11 #バージョン_22H2 #バージョン_23H2 #ACPI #セキュリティ #不具合_障害 #Windows #システム_ファイル #システム

「Windows 11 22H2/23H2」に2025年5月セキュリティパッチを適用できない問題が発生中／デバイスの修復が必要とのエラー
https://forest.watch.impress.co.jp/docs/news/2018215.html

#forest_watch_impress #Windows_11 #バージョン_22H2 #バージョン_23H2 #ACPI #セキュリティ #不具合_障害 #Windows #システム_ファイル #システム

"GUIDs are not big endian, they are not little endian, they are Goldilocks endian."

tedu@ in "fan service"

https://flak.tedunangst.com/post/fan-service #openbsd #acpi #wmi #fancontrol

Improved ACPI WMI support (may be) incoming https://www.undeadly.org/cgi?action=article;sid=20250511124600 #openbsd #acpi #wmi #hardwaresupport #lapops #powermanagement #callfortesting #libresoftware #freesoftware #unixlike #support

[Post-mortem: BashCore Stress Test Investigation]

Test ended on Day 5.
The system didn’t crash, but I noticed the fan was working overtime. The main suspect?
kworker/0:3+kacpid turns out it was busy with ACPI tasks (power management).
So technically… BashCore held up, but ACPI didn’t like the heat. Literally.
This is a known issue on older hardware with imperfect ACPI/BIOS support.

Takeaway:
BashCore is stable, it’s the laptop that needs therapy 🤒

#BashCore #LinuxKernel #ACPI #kworker

If you have a Gigabyte B550i AORUS board, the fix is similar:

echo GPP0 > /proc/acpi/wakeup

In this case, it disables wakeup from an M.2 NVMe drive, which apparently causes the same symptoms.

Credit to the following reddit post: https://www.reddit.com/r/gigabyte/comments/p5ewjn/b550i_pro_ax_f13_bios_sleep_issue_on_linux/

And commenter "bacuri_do_cerrado" for the fix on ASUS ROG Strix boards.

#linux #amd #acpi

Well, it woke up this morning after being in sleep mode all night. I'm calling this “likely fixed”. Huzzah!

The solution, for anyone with an ASUS ROG Strix B550-I (or similar boards from ASUS) motherboard that won't wake up from sleep:

echo XHC0 > /proc/acpi/wakeup

In theory, all this does is prevent USB3 devices on XHC0 from waking the system (kb and mice are USB2 so shouldn't be affected). Why this would prevent the system from waking properly is a mystery.

#linux #amd #acpi

Three successful wakeups! It would’ve crashed by now for sure. Not going to consider it fixed 100% just yet, but it’s looking hopeful! The true test is leaving it overnight, heh.

#linux #amd #acpi

Holy crap!
I *finally* someone with the exact same motherboard I have (Asus ROG Strix B550-I), with the exact same sleep/wake issue under Linux (system hangs on wake up w/ black screen), and someone who ACTUALLY resolved their problem and has a posted solution!

I’ve implemented the fix on my end (as a systemd service, yea boo hiss, etc.) and I’m going to test it. What a joy it will be if I actually finally have a computer that I can trust to sleep/wake under Linux!

#linux #amd #acpi