https://bugzilla.kernel.org/show_bug.cgi?id=105721
--- Comment #16 from Aaron Lu <[email protected]> --- Looks like starts from v4.2, _REV will return 2 instead of 5, which affects the battery _STA control method's value when acpi_osi is set to Linux. See this: + acpi_rev_override [ACPI] Override the _REV object to return 5 (instead + of 2 which is mandated by ACPI 6) as the supported ACPI + specification revision (when using this switch, it may + be necessary to carry out a cold reboot _twice_ in a + row to make it take effect on the platform firmware). So I think you can work around this by adding: acpi_osi=Linux acpi_rev_override to kernel cmdline. To verify if you have successfully done this, there should be a message in dmesg: Overriding _REV return value to 5 And then test the battery again. -- You are receiving this mail because: You are watching the assignee of the bug. ------------------------------------------------------------------------------ _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
