ACPI

Sissejuhatus

TODO

Mõisted

• ACPI - advanced configuration and power interface
• AML - acpi machine language

Tööpõhimõte

TODO

• ACPI - supervisor
• EC/SMBus - worker

Misc

Lenovo T460p - Ubuntu

OSI

root@ubu2110:~# dmesg -T | grep Added
[P sept  21 10:38:30 2025] ACPI: Added _OSI(Module Device)
[P sept  21 10:38:30 2025] ACPI: Added _OSI(Processor Device)
[P sept  21 10:38:30 2025] ACPI: Added _OSI(3.0 _SCP Extensions)
[P sept  21 10:38:30 2025] ACPI: Added _OSI(Processor Aggregator Device)
[P sept  21 10:38:30 2025] ACPI: Added _OSI(Linux-Dell-Video)
[P sept  21 10:38:30 2025] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[P sept  21 10:38:30 2025] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)

acpi aml tabelite (koodi) laadimine (ehk nn acpi-driverid)

[P sept  21 10:38:30 2025] ACPI: 11 ACPI AML tables successfully acquired and loaded

bus tüübid

root@ubu2110:~# dmesg -T | grep "ACPI: " | grep regist
[P sept  21 10:38:30 2025] ACPI: bus type PCI registered
[P sept  21 10:38:30 2025] ACPI: bus type USB registered

üsna tüüpiline viga

root@ubu2110:~# dmesg -T | grep "ACPI: " | grep Bug
[P sept  21 10:38:30 2025] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored

millega saaks tegeleda nt linux kernel ütleb, et ta on windows, iseasi kas see on praktiliselt vajalik

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi='Windows 2015'"

acpitool abil suhtlemine acpi osakonnaga

root@ubu2110:~# acpitool -c
  CPU type               : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
  Min/Max frequency      : 800/3500 MHz
  Current frequency      : 799 MHz
  Frequency governor     : powersave
  Freq. scaling driver   : intel_pstate
  Cache size             : 2600.000 KB
  Bogomips               : 5199.98
  Bogomips               : 5199.98
  Bogomips               : 5199.98
  Bogomips               : 5199.98
  Bogomips               : 5199.98
  Bogomips               : 5199.98
  Bogomips               : 5199.98
  Bogomips               : 5199.98
  Function Show_CPU_Info : could not read directory /proc/acpi/processor/
  Make sure your kernel has ACPI processor support enabled.

aku

root@ubu2110:~# acpitool -B
  Battery #1     : present
    Remaining capacity : 15680 mWh, 100.0%
    Design capacity    : 71280 mWh
    Last full capacity : 15680 mWh, 22.00% of design capacity
    Capacity loss      : 78.00%
    Present rate       : 0 mW
    Charging state     : Full
    Battery type       : Li-ion
    Model number       : 45N1777
    Serial number      : 2616

wake up seadmed

root@ubu2110:~# acpitool -w
   Device	S-state	  Status   Sysfs node
  ---------------------------------------
  1. LID	  S4	*enabled   platform:PNP0C0D:00
  2. SLPB	  S3	*enabled   platform:PNP0C0E:00
  3. IGBE	  S4	*enabled   pci:0000:00:1f.6
  4. PXSX	  S4	*disabled  pci:0000:03:00.0
  5. PXSX	  S4	*disabled
  6. PXSX	  S4	*disabled
  7. PXSX	  S4	*disabled
  8. PXSX	  S4	*disabled  pci:0000:04:00.0
  9. 		*disabled  platform:rtsx_pci_sdmmc.0
  10. PXSX	  S4	*disabled
  11. XHCI	  S3	*enabled   pci:0000:00:14.0

root@ubu2110:~# lspci | grep 00:1f.6
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-LM (rev 31)

root@ubu2110:~# dmesg | egrep "PNP0C0D|PNP0C0E"
[    0.323518] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
[    0.323573] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input1

Lenovo T460p - OpenBSD

TODO

Kasulikud lisamaterjalid

• TODO