[Kernel-packages] [Bug 1933707] Re: Many ACPI errors

** Changed in: linux (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1933707 Title: Many ACPI errors Status in linux package in Ubuntu: Won't

[Kernel-packages] [Bug 1933707] Re: Many ACPI errors

It is not a recommendation for BIOS to remove SSDT15 and SSDT22, but they are good starting point for analyse BIOS code. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1933707 Title:

[Kernel-packages] [Bug 1933707] Re: Many ACPI errors

For references, USB port failures can be fixed by removing SSDT21 (its header below) * Disassembly of ssdt21.dat, Tue Jun 29 18:17:44 2021 * * Original Table Header: * Signature"SSDT" * Length 0x0C14 (3092) * Revision 0x02 * Checksum

[Kernel-packages] [Bug 1933707] Re: Many ACPI errors

Touchpad failures can be fixed by removing SSDT15 * Disassembly of ssdt15.dat, Tue Jun 29 18:17:16 2021 * * Original Table Header: * Signature"SSDT" * Length 0x4A2A (18986) * Revision 0x02 * Checksum 0x3D * OEM ID

[Kernel-packages] [Bug 1933707] Re: Many ACPI errors

There are two types of ACPI errors: AE_NOT_FOUND and AE_ALREADY_EXISTS, and both of them are the result of BIOS bugs AE_NOT_FOUND: BIOS declares but does not defines them, and accessing them generates failures - this includes both USB port and touchpad declaration. AE_ALREADY_EXISTS: BIOS