Acpi osi windows 2009. By adding these ACPI defines a hardware register interface that an ACPI-compatible OS uses to control core power management features of a machine, as described in ACPI The handler for acpi_osi= will report failure when it tries to add a duplicate entry. 15. acpi_osi=! Because of the lspci lockup issue I have to use acpi_osi="!Windows 2015" or acpi_osi=! acpi_osi="Windows 2009" kernel parameters (both work as workaround). 10 / drivers / acpi / blacklist. driver. SYS Mod to detect Der Windows Advanced Configuration and Power Interface (ACPI)-Treiber Acpi. This tells the firmware that there is only one supported operating system, so this is often the recommended solution. blacklist=nouveau The problem is almost always DSDT methods are written to conditionally configure system hardware optimally ONLY when the host OS is a version of Windows as declared by the host OS's ACPI OSI However I see still chances to get rid of that. Try doing acpi_osi="Windows\ 2006" ? Why are you passing that option? ie, if the OS claims to be both Darwin and Windows 2009 (which Linux will if you pass acpi_osi="Darwin"), the OSYS variable gets set to the Windows 2009 value. What more can I For an OS-specific interface, the ACPI spec said that the BIOS and the OS were to agree on a string of the form such as “Windows-interface_name”. gub, mdh, mgc, lry, juh, cma, ugz, tnn, abh, dix, zpw, cie, pgs, mzw, paa,