http://bugzilla.kernel.org/show_bug.cgi?id=7576
------- Additional Comments From [EMAIL PROTECTED] 2007-03-04 17:19 -------
>ACPI Error(psloop-0268):
> Found unknown opcode FD at AML address 0x58827c,
> offset 5BA8, ignoring....
On my laptop, I have :
ACPI Error (psloop-0268): Found unknown opcode FD at AML address 0x58a3ac offset
5BA8, ignoring [20060912]
ACPI Error (psloop-0268): Found unknown opcode FD at AML address 0x58a45b offset
5C57, ignoring [20060912]
and the errors are located in the _PSD objects (1 per CPU).
Partial hexdump of my dsdt:
00005BB0 08 5F 50 50 43 0A 00 08 5F 50 53 44 12 0F 01 12 ._PPC..._PSD....
00005BC0 15 05 0A 05 0A 00 0C 00 00 00 00 0C FD 00 00 00 ................
00005BD0 0C 02 00 00 00 10 4E 0A 5C 2E 5F 50 52 5F 43 50 ......N.\._PR_CP
The faulty byte is the one at 0x5BBD, i.e. the length of a Package object. The
length of _PSD is not 0xF but 0x18.
The dsdt decompiles to:
Name (_PSD, Package (0x01)
{
Package (0x05)
{
0x05,
0x00,
0x00000000,
0x000000FD
}
})
Zero
Zero
Zero
0x00000002
If we replace 0xF by 0x18, there is no more error and we have a valid _PSD:
Name (_PSD, Package (0x01)
{
Package (0x05)
{
0x05,
0x00,
0x00000000,
0x000000FD,
0x00000002
}
})
The same thing must be done for the second cpu. Understanding this is
interesting because it allows me to recompile (customize) my dsdt: that's a
first step to make things better.
Unfortunately, all that is about P-States (useless with powernowk8). Not
C-states.
Do we suppose that C-States are available under Windows ? Is it possible if
there's no _CST in the dsdt ??
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