Method (\_SB._INI, 0, NotSerialized)
{
\_SB.OSTP ()
If (LGreaterEqual (\_SB.OSTP (), 0x40))
{
Load (VIST, VSTH)
}// because of the error, the _INI object will exit directly.
\_SB.FEXT.BINI () // BINI object can't be executed.
\_SB.PCI0.LPCB.TINI () //TINI object can't be executed.
}
From the AML code it seems that the following variables are initialized in
https://bugzilla.novell.com/show_bug.cgi?id=396311
User yakui.zhao@intel.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=396311#c50
--- Comment #50 from Yakui Zhao 2008-06-18 19:17:59 MDT ---
Hi, Thomas
There is a similar bug in kernel bugzilla.
http://bugzilla.kernel.org/show_bug.cgi?id=9919
In the DSDT we can't find anything directly related with cpufreq.But the
cpufreq is affected by whether the VIST table is loaded successfully. When
there is no boot option of acpi_osi!=windows2006, OS will try to load the SSDT
table from the address of 0x7F6CDAFC( VIST table). But the VIST table has no
signature, which causes that the vista table can't be loaded successfully. As
the vist table is not loaded, the _INI will return execption, which causes that
the following object can't be executed correctly. Of course the other side
effect is that some objects can't be found. For example:
\_SB_.PCI0.GFX0.LCD_.BLNF.
the TINI object.
> TCDT, TCUT ( the two variables are related with the _PPC object)
As the variables related with the _PPC object are not initialized
correctly, the cpufreq won't work well. If the boot option of acpi!="windows
2006" is added, the VIST table won't be loaded and the _INI method can be
executed correctly. So cpufreq can work well.
After the patch inc omment #32 is applied, the _INI object can be executed
correctly and the variables related with _PPC object are also initialized
correctly. So in such case the cpufreq can work well even without the option of
acpi!="windows 2006".
Thanks.
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