thanks for the macbook pro acpidump, andrea.
Apple got it wrong -- they're using if/then/else with _OSI
to try to identify the OS, just like the broken reference code.
But it doesn't look like in this version it will make any difference.
The _STA.GUI bit for HPET will be set for Windows and Darwin,
but not for Linux. But Linux doesn't use that bit anyway.
Also, thanks for the dmesg -- the fact that you got no extra
line in dmesg means I botched it -- so I'll fix that it in a minute.
Finally, there are some interesting parts of the DSDT that will
change depending on "acpi_osi=Darwin" -- looks like bits
related to the smart battery. We should look into what it
would mean to set _OSI "Darwin" at some point...
cheers,
-Len
for those interested in the details, here is the interesting part of the DSDT:
Method (_INI, 0, NotSerialized)
{
If (CondRefOf (_OSI, Local0))
{
If (_OSI ("Darwin"))
{
Store (0x2710, OSYS)
# if (Darwin), OSYS=Ox2710
}
Else
{
If (_OSI ("Linux"))
{
Store (0x03E8, OSYS)
# if (Linux) OSYS=0x3E8
}
Else
{
Store (0x07D1, OSYS)
# else OSYS=7D1 (modern Windows goes here)
}
}
}
Else
{
Store (0x07D0, OSYS)
# else OSYS=0x7D0 (old windows and old Linux go here)
}
...
Device (HPET)
{
Name (_HID, EisaId ("PNP0103"))
Name (_CID, 0x010CD041)
...
Method (_STA, 0, NotSerialized)
{
If (LGreaterEqual (OSYS, 0x07D1))
{
If (HPAE)
{
Return (0x0F)
# if HPET enabled && (>= new Windows), return functioning, gui, enabled, present
# note that Linux is not >= new Windows here
}
}
Else
{
If (HPAE)
{
Return (0x0B)
# if HPET enabled && (< new Windows) return functioning, enabled, present
}
}
Return (0x00)
}
-
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