** Changed in: linux (Ubuntu)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1933707
Title:
Many ACPI errors
Status in linux package in Ubuntu:
Won't F
It is not a recommendation for BIOS to remove SSDT15 and SSDT22, but
they are good starting point for analyse BIOS code.
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Title:
Man
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 0xF
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 "A
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 defin
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