https://bugzilla.kernel.org/show_bug.cgi?id=18722


Zhang Rui <[email protected]> changed:

           What    |Removed                     |Added
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--- Comment #5 from Zhang Rui <[email protected]>  2010-09-27 02:54:28 ---
(In reply to comment #0)
> On the macbook pro 5,2, PCI-based expresscards do not work without adding
> acpi_osi=Darwin the the kernel command line.

please attach the output of lspci -vvxxx both with and without acpi_osi=Darwin.

> However, with acpi_osi=Darwin,
> battery monitoring fails.  The DSDT file seems to report the correct config
> information to darwin, and fake information to everything else.

yes, you're right.
             Device (BAT0)
                    {
                        Method (_STA, 0, NotSerialized)
                        {
                            If (OSDW ())
                            {
                                Return (0x00)
                            }
                            ...
                        }
                    }
If you're using acpi_osi=Darwin, the Battery status is always "not present". :)

> I've patched
> the DSDT to pass the correct information, so that expresscards work without
> breaking anything else.
> 
> I'm not sure if this is the correct place to report this bug, please reassign
> if necessary!
> 
yes, it is. :)

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