acpi_osi=Linux was generally a workaround the tell the BIOS of a laptop that the OS was compatible with linux to prevent the cooling fans from running continuously (especially on older Tosiba Laptops)... have you tried using acpi=off? ...and what is this on?acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS Format: To spoof as Windows 98: ="Microsoft Windows"
acpi_osi= [HW,ACPI] empty param disables _OSI
+ acpi_osi= [HW,ACPI] Modify list of supported OS interface strings
+ acpi_osi="string1" # add string1 -- only one string
+ acpi_osi="!string2" # remove built-in string2
+ acpi_osi= # disable all strings acpi_serialize [HW,ACPI] force serialization of AML methods
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