- SAVE DSDT WINDOWS HOW TO
- SAVE DSDT WINDOWS INSTALL
- SAVE DSDT WINDOWS DRIVER
Execute HIDD’s _STA: execute _SB.HIDD._STA.it does not touch hardware registers or actual memory. Using acpiexec is the same as acpidbg, but it loads tables from files and runs AML in emulation mode, i.e. One can continue to trace OIDE() -> OSID() and so on to find out what _STA returns.Īlternatively, using acpiexec is easier. As in the above ASL code, _STA can be present (return 0x0F) or absent (return Zero).
SAVE DSDT WINDOWS DRIVER
In addition to the device declaration, Linux ACPI device driver is loaded when _STA returns “present”. Method (_STA, 0, Serialized) // _STA: Status Name (_HID, "INT33D5") // _HID: Hardware ID Once found, let’s use vi to see more details in DSDT such as the device name (HIDD) as below: Scope (_SB)
Extract DSDT and SSDT: acpixtract acpi.logĬheck Whether INT33D5 is “Present” Find INT33D5 in DSDT or SSDT $ grep INT33D5 *.dsl. Get all tables: sudo acpidump > acpi.log. Find Out ACPI Device’s (intel-hid’s) Hardware IDĪ quick online search shows intel-hid.c is for an ACPI device with _HID “INT33D5”. Consequently, we may need to debug BIOS ASL/AML code using ACPICA utilities following the below steps. Let’s assume we already know intel-hid handles airplane mode on this Dell system but it is not loaded for now. To understand whether the airplane mode driver is loaded, one can run $ lsmod | grep -E 'dell_rbtn|intel_hid|intel_vbtn'Īs seen above, the “intel-hid” shows up on this particular Dell system. Let’s use a Dell system as an example but the same technique also applies for others. Lenovo – idealpad-laptop, thinkpad_acpi. Dell – dell-rbtn, intel-hid, intel-vbtn. Similarly, other driver source code can be found in Linux kernel. SAVE DSDT WINDOWS HOW TO
The below figure demonstrates how to debug if the airplane mode button fails to work.Įach computer brand has its specific implementation(s) and corresponding device driver(s). More specifically, it requires an ACPI device to be “present” in DSDT (or SSDT) table and a corresponding device driver. The airplane-mode button on laptops usually requires implementation from both system BIOS and an OS driver.
iasl – compile & disassemble ACPI tables. acpiexec – emulate ACPI tables from extracted tables. acpixtract – extract tables from an acpidump file. acpidump – collect tables from a running system. This article focuses on how to use iasl, acpidump, acpiexec and acpixtract. The acpica-tools consist of the following utilities: acpibin, acpiexamples, acpihelp, acpisrc, iasl, acpidump, acpiexec, acpinames and acpixtract. The latest source code is available on either or github as below, and it can be compiled and installed by “ make” followed by “ sudo make install“. SAVE DSDT WINDOWS INSTALL
Installing acpica-tools is as easy as the following command: sudo apt install acpica-tool In such cases, acpica also provides a set of utilities, named acpica-tools, for ACPI debugging. Using acpidbg on Ubuntu 18.04 圆4 can be quite handy however, the Linux kernel with ACPI_DEBUGGER is not always available, such as on Ubuntu for ARM.
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