| commit | 81074e90f5c150ca70ab8dfcc77860cbe76f364d | [log] [tgz] |
|---|---|---|
| author | Zhang Rui <rui.zhang@intel.com> | Mon Dec 21 16:13:15 2009 +0800 |
| committer | Len Brown <len.brown@intel.com> | Tue Dec 22 02:39:24 2009 -0500 |
| tree | 607fd815382a44b6876ebaa9840f644764175f39 | |
| parent | 22763c5cf3690a681551162c15d34d935308c8d7 [diff] |
ACPI: disable _OSI(Windows 2009) on Asus K50IJ
Fix a win7 compability issue on Asus K50IJ.
Here is the _BCM method of this laptop:
Method (_BCM, 1, NotSerialized)
{
If (LGreaterEqual (OSFG, OSVT))
{
If (LNotEqual (OSFG, OSW7))
{
Store (One, BCMD)
Store (GCBL (Arg0), Local0)
Subtract (0x0F, Local0, LBTN)
^^^SBRG.EC0.STBR ()
...
}
Else
{
DBGR (0x0B, Zero, Zero, Arg0)
Store (Arg0, LBTN)
^^^SBRG.EC0.STBR ()
...
}
}
}
LBTN is used to store the index of the brightness level in the _BCL.
GCBL is a method that convert the percentage value to the index value.
If _OSI(Windows 2009) is not disabled, LBTN is stored a percentage
value which is surely beyond the end of _BCL package.
http://bugzilla.kernel.org/show_bug.cgi?id=14753
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>