2025-06-16 08:27:40 2625
在DSDT的修改中会出现各种各样的Warnings和Errors，Warnings可以忽略，除非你和我一样是一个完美主义者；Error就不能视而不见了，出现Error之后会使引导出现问题。所以相对于Warnings，Errors是一定要去除的。
推荐一种修改方式，就是改之前先编译（Compile）一下，有errors和warnings就先修改掉。完成之后，再修改一个地方编译一下，一步一步来，不然修改了很多到最后都不知道是错在哪里了。
下面就列举一些比较常见的吧，错误代码不一定完全和实际中的一样，有可能会有几个数值的差距，不过不影响。另外，下面所有内容直接用英文了，并稍微加了一点点点自己的理解。虽然自己看得懂，不过本人翻译水平有限，下面很多词语过于专业。怕翻译之后就变味了，所以干脆就不翻译了。英文不算太难，如果遇到不认识的单词搜索一下即可。(=^_^=)
Access width of Field Unit extends beyond region limit
1
2
3
4
SRST
,
1
,
Error
1051
- ^ Access width of Field Unit
extends beyond region limit
ACPW
,
1
Error
1051
- ^ Access width of Field Unit
extends beyond region limit
This error consists on that the limit of data is less that the quantity of the same
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
OperationRegion
(GPIO
, SystemIO
,
0x1180
,
0x3B
)
// "0x3B" contains the error, it must be increased for example to "0x3C" (hexa)
Field
(GPIO
, WordAcc
, Lock
, Preserve
)
{
AccessAs
(DWordAcc
,
0x00
)
,
Offset
(
0x0F
)
,
,
4
,
LV28
,
1
,
Offset
(
0x2D
)
,
,
5
,
LPOL
,
1
,
Offset
(
0x38
)
,
,
1
,
SRST
,
1
,
Offset
(
0x39
)
,
,
2
,
ACPW
,
1
}
Argument count mismatch error
1
2
./dsdt_fixed
.txt
1
: ACPI
(Local2
)
Error
4095
- ^ syntax error
, unexpected PARSEOP_NAMESEG
,expecting PARSEOP_DEFINITIONBLOCK
This error comes from line 1.If we look inside the DSDT.dsl, we can verify that the error is here:
1
2
3
4
5
ACPI Error
(dmutils
-
0261
)
: Argument
count mismatch
for method \_SB_
.VWAK
3
1
[
20080926
]
ACPI Error
(dmutils
-
0261
)
: Argument
count mismatch
for method \_GPE
.VBRE
2
1
[
20080926
]
/* * Intel ACPI Component Architecture * AML Disassembler version 20080926
There should be no code before these lines:
1
2
3
/* * Intel ACPI Component Architecture * AML Disassembler version 20080926
Internal compiler error ^ (null Op pointer)
1
2
dsdt
.dsl
4106
:
If
(LNot
(\_OSI
(
"Windows 2006"
)
)
)
Error
4011
- Internal compiler error ^
(
null Op pointer
)
The incorrect part of the code is:
1
2
3
4
If
(LNot
(\_OSI
(
"Windows 2006"
)
)
)
{
PHSR
(
0x10
,
0x00
)
}
It can be fixed by these changes:
1
2
3
4
5
6
7
If
(\_OSI
(
"Windows 2006"
)
)
{
}
Else
{
PHSR
(
0x10
,
0x00
)
}
Local variable is not initialized
1
2
./dsdt_fixed
.txt
408
: Store
(Local0
, Local0
)
Error
4050
- ^ Method local variable is not initialized
(Local0
)
If we revise the code, and look at line 408 we find the these codes.There may exists two cases
1
2
3
4
5
6
7
8
9
10
11
Scope
(\_SI
)
{
Method
(_MSG
,
1
, NotSerialized
)
{
Store
(Local0
, Local0
)
}
Method
(_SST
,
1
, NotSerialized
)
{
Store
(Local0
, Local0
)
}
}
1
2
3
4
5
6
7
8
9
10
11
Scope
(\_SI
)
{
Method
(_MSG
,
1
, NotSerialized
)
{
Store
(
"Local0"
, Local0
)
}
Method
(_SST
,
1
, NotSerialized
)
{
Store
(
"Local0"
, Local0
)
}
}
How do we know what in the DSDT.dsl needs fixing? If you search for “Store” in the menu, and look just below the error, you will see something like this:
1
2
Store
(
0xFF
, RSR0
)
Store
(
0x80
, PMC0
)
The first value of “Store” is a hexadecimal value, and the second, a variable. There is the error. In the code (Local0,Local0), it is supposed that the first value is a hexadecimal, not a variable. we could add 0×00 or also zero, in a format like this:
1
2
3
4
5
6
7
8
9
10
11
Scope
(\_SI
)
{
Method
(_MSG
,
1
, NotSerialized
)
{
Store
(zero
, Local0
)
}
Method
(_SST
,
1
, NotSerialized
)
{
Store
(zero
, Local0
)
}
}
Maximum error count (200) exceeded
1
./dsdt_fixed
.txt
24
: External
(^CPU0
._PPC
)
The problem here is that the compiler doesn’t like the following:
1
External
(^CPU0
._PPC
)
It can be fixed by using this code:
1
External
(\_PR
.CPU0
._PPC
)
Then we must find and replace every occurrence in the code that has ^CPU0 for _PR.CPU0 to skip this error:
1
2
3
4
5
6
7
8
9
10
11
dsdt
.dsl
.patched
574
:
If
(LGreater
(^CPU0
._PPC
, Zero
)
)
Error
4063
-Object not found or not accessible from scope ^
(^CPU0
._PPC
)
dsdt
.dsl
.patched
576
: Subtract
(^CPU0
._PPC
, One
, ^CPU0
._PPC
)
Error
4063
-Object not found or not accessible from scope ^
(^CPU0
._PPC
)
dsdt
.dsl
.patched
576
: Subtract
(^CPU0
._PPC
, One
, ^CPU0
._PPC
)
Error
4063
-Object not found or not accessible from scope ^
(^CPU0
._PPC
)
dsdt
.dsl
.patched
578
: Add
(^CPU0
._PPC
, One
, ^CPU0
._PPC
)
Error
4063
-Object not found or not accessible from scope ^
(^CPU0
._PPC
)
Method local variable is not initialized (Local0)
1
2
DSDT
.dsl
242
: Store
(Local0
, Local0
)
Error
4050 – ^ Method local variable is not initialized
(Local0
)
This error is produced because a variable tries to store it’s value in itself. Original codes:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Scope
(\_SI
)
{
Method
(_MSG
,
1
, NotSerialized
)
{
Store
(Local0
, Local0
)
}
Method
(_SST
,
1
, NotSerialized
)
{
Store
(Local0
, Local0
)
If
(LEqual
(Arg0
,
0x03
)
)
{
}
If
(LEqual
(Arg0
,
0x01
)
)
{
}
}
}
There are two method to repair this,you need to comment this code out below or enclose on ” ” the first Local0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Scope
(\_SI
)
{
Method
(_MSG
,
1
, NotSerialized
)
{
/* Store (Local0, Local0) */
}
Method
(_SST
,
1
, NotSerialized
)
{
/* Store (Local0, Local0) */
If
(LEqual
(Arg0
,
0x03
)
)
{
}
If
(LEqual
(Arg0
,
0x01
)
)
{
}
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Scope
(\_SI
)
{
Method
(_MSG
,
1
, NotSerialized
)
{
/* Store ("Local0", Local0) */
}
Method
(_SST
,
1
, NotSerialized
)
{
/* Store ("Local0", Local0) */
If
(LEqual
(Arg0
,
0x03
)
)
{
}
If
(LEqual
(Arg0
,
0x01
)
)
{
}
}
}
Method local variable is not initialized
1
2
dsdt
.dsl
610
:
If
(LNot
(LEqual
(ShiftRight
(And
(Local1
,
0x10
)
,
0x03
)
, And
(Local2
,
0x02
)
)
)
)
Error
1013
- Method local variable is not initialized ^
(Local1
)
In this case, you must change all “Local1″ in that line to “Local2″.(Only in this case, in others it could be another error.)
Missing ResourceSource string
1
2
3
4
5
6
7
8
dsdt
.asl
1028
:
0x0100
,
0x00
)
Error
1094
- ^ Missing ResourceSource string
(required
)
dsdt
.asl
1034
:
0x00000CF8
,
0x00
)
Error
1094
- ^ Missing ResourceSource string
(required
)
dsdt
.asl
1041
:
0x0000F300
,
0x00
)
Error
1094
- ^ Missing ResourceSource string
(required
)
To fix this error we must eliminate the value of 0×00 from all erroneous entries. The first one is the original,and the second one is the modified.
1
2
3
4
5
6
1023 WordBusNumber
(ResourceProducer
, MinFixed
, MaxFixed
,PosDecode
,
1024
0x0000
,
/* Address Space Granularity */
1025
0x0000
,
/* Address Range Minimum */
1026
0x00FF
,
/* Address Range Maximum */
1027
0x0000
,
/* Address Translation Offset */
1028
0x0100
,
0x00
)
1
2
3
4
5
6
1023 WordBusNumber
(ResourceProducer
, MinFixed
, MaxFixed
,PosDecode
,
1024
0x0000
,
/* Address Space Granularity */
1025
0x0000
,
/* Address Range Minimum */
1026
0x00FF
,
/* Address Range Maximum */
1027
0x0000
,
/* Address Translation Offset */
1028
0x0100
)
Must return a value (_WAK)
1
2
dsdt
.dsl
163
: Method
(_WAK
,
1
, NotSerialized
)
Warning
2026
- ^ Reserved method must
return a value
(_WAK
)
At the end of the _WAK method, this must be added:
1
Return
(Package
(
0x02
)
{Zero
, Zero
}
)
Example:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Method
(_WAK
,
1
, NotSerialized
)
{
P8XH
(One
,
0xAB
)
If
(LOr
(LEqual
(Arg0
,
0x03
)
, LEqual
(Arg0
,
0x04
)
)
)
{
If
(And
(CFGD
,
0x01000000
)
)
{
If
(LAnd
(And
(CFGD
,
0xF0
)
, LEqual
(OSYS
,
0x07D1
)
)
)
{
TRAP
(
0x3D
)
}
}
}
If
(LEqual
(RP2D
, Zero
)
)
{
Notify
(\_SB
.PCI0
.RP02
, Zero
)
}
If
(LEqual
(Arg0
,
0x03
)
)
{
}
If
(LEqual
(Arg0
,
0x04
)
)
{
\_SB
.PCI0
.LPCB
.EC
.SELE
(
)
}
P8XH
(Zero
,
0xCD
)
Return
(Package
(
0x02
)
{
Zero
,
Zero
}
)
}
Not all control paths return a value
1
2
dsdt
.dsl
7288
: Method
(EVNT
,
1
, NotSerialized
)
Warning
1086
- ^ Not all control paths
return a value
(EVNT
)
In this other case, a value of this kind must be returned at the end of the method:
1
Return
(Zero
)
Example:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Method
(EVNT
,
1
, NotSerialized
)
{
While
(VZOK
)
{
If
(LEqual
(VZOK
,
0x01
)
)
{
Store
(Arg0
, VZOK
)
Notify
(\_SB
.VALZ
,
0x80
)
Return
(Zero
)
}
Else
{
Sleep
(
0x05
)
}
}
}
The fix is something like:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Method
(EVNT
,
1
, NotSerialized
)
{
While
(VZOK
)
{
If
(LEqual
(VZOK
,
0x01
)
)
{
Store
(Arg0
, VZOK
)
Notify
(\_SB
.VALZ
,
0x80
)
Return
(Zero
)
}
Else
{
Sleep
(
0x05
)
}
}
Return
(Zero
)
}
Not all control paths return a value（2）
1
2
dsdt
.dsl
255
: Method
(_BTP
,
1
, NotSerialized
)
Warning
2019
- ^ Not all control paths
return a value
(_BTP
)
The original code is:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Device
(CMB0
)
{
Name
(_HID
, EisaId
(
"PNP0C0A"
)
)
Name
(_UID
,
0x01
)
Name
(BATP
, Ones
)
Name
(_PCL
, Package
(
0x01
)
{
\_SB
}
)
...
...
...
Method
(_BTP
,
1
, NotSerialized
)
{
If
(LEqual
(\ECFL
, Zero
)
)
{
Return
(
0x0F
)
}
Else
{
Store
(
"_SB.CMB0._BTP"
, Debug
)
}
}
...
...
...
}
In this case, the solution consists on using the returned value of \ECFL and then add it in place of “Debug”.Change this line:
1
Store
(
"_SB.CMB0._BTP"
, Debug
)
to this:
1
Store
(
"_SB.CMB0._BTP"
,
0x0F
)
Object does not exist ^ (\_PR.C000)
1
2
3
4
5
6
7
8
9
10
11
dsdt
.dsl
75
:
If
(LEqual
(\C001
,
0x00
)
)
Error
1061
- Object does not exist ^
(\C001
)
dsdt
.dsl
6589
: \_PR
.C000
Error
1061
- Object does not exist ^
(\_PR
.C000
)
dsdt
.dsl
6645
: Notify
(\_PR
.C000
,
0x80
)
Error
1061
- Object does not exist ^
(\_PR
.C000
)
dsdt
.dsl
6718
: Notify
(\_PR
.C000
,
0x80
)
Error
1061
- Object does not exist ^
(\_PR
.C000
)
In this error, there is missing code that needs to be added to the beginning.This is the code to be added:
1
2
External
(\C001
)
External
(\_PR
.C000
)
Just below the header of the DSDT, like this:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
/* * Intel ACPI Component Architecture * AML Disassembler version 20090625 * * Disassembly of ./dsdt.dat, Tue Aug 11 23:29:06 2009 * * * Original Table Header: * Signature "DSDT" * Length 0x00005FC3 (24515) * Revision 0x02 * Checksum 0x13 * OEM ID "Sony" * OEM Table ID "VAIO" * OEM Revision 0x20080725 (537397029) * Compiler ID "INTL" * Compiler Version 0x20090625 (537462309) */
DefinitionBlock
(
"./dsdt.aml"
,
"DSDT"
,
2
,
"Sony"
,
"VAIO"
,
0x20080725
)
{
External
(\C001
)
External
(\_PR
.C000
)
External
(L0C3
)
External
(L1C3
)
External
(PDC1
)
External
(PDC0
)
External
(CFGD
)
Object does not exist ^ (\LOR)
1
2
./dsdt_fixed
.txt
233
:
If
(\LOr
(_OSI
(
"Darwin"
)
, _OSI
(
"Windows 2001"
)
)
)
Error
4063
- Object does not exist ^
(\LOR
)
Solution:
1
If
(LOr
(\_OSI
(
"Darwin"
)
, \_OSI
(
"Windows 2001"
)
)
)
Or:
1
If
(LOr
(_OSI
(
"Darwin"
)
, _OSI
(
"Windows 2001"
)
)
)
Operation Region requires ByteAcc
1
2
3
4
5
./dsdt_fixed
.txt
3964
: Field
(ECRM
, AnyAcc
, Lock
, Preserve
)
Error
4075
- ^ Host Operation Region requires ByteAcc access
./dsdt_fixed
.txt
4192
:
Return
(Local1
)
Error
4050
- Method local variable is not initialized ^
(Local1
)
What is happening here? Well This:
1
2
OperationRegion
(ECRM
, EmbeddedControl
, Zero
,
0xFF
)
Field
(ECRM
, AnyAcc
, Lock
, Preserve
)
The compiler tells us that Anyacc isn’t correct, it must be ByteAcc, so that way we change this:
1
2
OperationRegion
(ECRM
, EmbeddedControl
, Zero
,
0xFF
)
Field
(ECRM
, ByteAcc
, Lock
, Preserve
)
The second error:
1
2
./dsdt_fixed
.txt
4192
:
Return
(Local1
)
Error
4050
- Method local variable is not initialized ^
(Local1
)
Is similar to the error above, of the uninitialized variable, does it sound familiar to you all?
1
2
3
4
5
6
7
8
9
10
11
Method
(PKTW
,
1
, NotSerialized
)
{
Store
(Arg0
, EPKT
)
Return
(Local1
)
We fix it like this
:
Method
(PKTW
,
1
, NotSerialized
)
{
Store
(Arg0
, EPKT
)
Return
(Zero
)
Possible operator timeout is ignored
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
dsdt
.dsl
4220
: Acquire
(MUTE
,
0x03E8
)
Warning
1103
- ^ Possible operator timeout is ignored
dsdt
.dsl
4234
: Acquire
(MUTE
,
0x03E8
)
Warning
1103
- ^ Possible operator timeout is ignored
dsdt
.dsl
4249
: Acquire
(MUTE
,
0x03E8
)
Warning
1103
- ^ Possible operator timeout is ignored
dsdt
.dsl
4264
: Acquire
(MUTE
,
0x0FFF
)
Warning
1103
- ^ Possible operator timeout is ignored
dsdt
.dsl
4278
: Acquire
(MUTE
,
0x03E8
)
Warning
1103
- ^ Possible operator timeout is ignored
dsdt
.dsl
4293
: Acquire
(MUTE
,
0x03E8
)
Warning
1103
- ^ Possible operator timeout is ignored
dsdt
.dsl
4308
: Acquire
(MUTE
,
0x03E8
)
Warning
1103
- ^ Possible operator timeout is ignored
In this error, the value of MUTE must be changed from 0xXXXX to 0xFFFF
1
Acquire
(MUTE
,
0x03E8
)
Converts to the code below,and it must be replaced where ever it gives error.
1
Acquire
(MUTE
,
0xFFFF
)
Reserved method has too few arguments
1
2
dsdt
.dsl
3067
: Method
(_EJ0
,
0
, NotSerialized
)
Warning
1076
- ^ Reserved method has too few arguments
(_EJ0 requires
1
)
This error is solved by changing:
1
Method
(_EJ0
,
0
, NotSerialized
)
to:
1
Method
(_EJ0
,
1
, NotSerialized
)
Reserved method has too many arguments
1
2
dsdt
.dsl
3067
: Method
(_EJ0
,
0
, NotSerialized
)
Warning
1076
- ^ Reserved method has too few arguments
(_EJ0 requires
1
)
This error is solved by changing:
1
Method
(_EJ0
,
0
, NotSerialized
)
to:
1
Method
(_EJ0
,
1
, NotSerialized
)
Reserved method must return a value (_PSR)
1
2
dsdt
.dsl
3896
: Method
(_PSR
,
0
, NotSerialized
)
Warning
1079
- ^ Reserved method must
return a value
(_PSR
)
Here the problem is that it is not detected the change from battery/AC.Extracted from the ACPI specifications:
1
2
3
4
5
6
7
8
11
.3
.1 PSR
(Power Source
)
Returns the
current power source devices
. Used
for the AC adapter and is located under the AC adapter
object in name space
. Used to determine
if
system is running off the AC adapter
.
Arguments
:
None
Result Code
:
0x00000000 – Off
-line
0x00000001 – On
-line
This is the erroneous code:
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2
3
4
5
6
7
Method
(_PSR
,
0
, NotSerialized
)
{
If
(\_SB
.PCI0
.PIB
.EC
.ECOK
)
{
Return
(\_SB
.PCI0
.PIB
.EC
.ADP
)
}
}
And here the solution:
1
2
3
4
5
6
7
8
9
10
11
Method
(_PSR
,
0
, NotSerialized
)
{
If
(\_SB
.PCI0
.PIB
.EC
.ECOK
)
{
Return
(
0x01
)
}
Else
{
Return
(
0x00
)
}
}
Reserved method must return a value (_STA)
1
2
Method
(_STA
,
0
, NotSerialized
)
Warning
2026
- ^ Reserved method must
return a value
(_STA
)
This is the original code:
1
2
3
4
Method
(_STA
,
0
, NotSerialized
)
{
STAL
(
0x60
)
}
It should be:
1
2
3
4
Method
(_STA
,
0
, NotSerialized
)
{
Return
(STAL
(
0x60
)
)
}
Result is not used, operator has no effect ^
1
2
dsdt
.dsl
10150
: ShiftRight
(BUF2
,
0x04
)
Warning
1105
- Result is not used
, operator has no effect ^
The error is produced because “Shiftright” stores no value:
1
2
3
4
5
6
7
8
.....
Store
(AAXB
, MBUF
)
ShiftRight
(BUF2
,
0x04
)
<
------- Error
.
Store
(BUF2
, Local3
)
Store
(CMER
, BUF0
)
Store
(
0xFF
, BUF1
)
Store
(Zero
, BUF2
)
.....
It must be changed to this :
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2
3
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5
6
7
8
Store
(BUF2
, Local4
)
Store
(AAXB
, MBUF
)
Store
(BUF2
, Local4
)
<------- Here
.
Store
(BUF2
, Local3
)
Store
(CMER
, BUF0
)
Store
(
0xFF
, BUF1
)
Store
(Zero
, BUF2
)
Result is not used, operator has no effect ^ （2）
1
2
./dsdt
.dsl
2803
: And
(CTRL
,
0x1E
)
Warning
1105
- ^ Result is not used
, operator has no effect
It can be fixed changing:
1
And
(CTRL
,
0x1E
)
to:
1
And
(CTRL
,
0x1E
, CTRL
)
String must be entirely alphanumeric
1
2
dsdt
.dsl
32
: Name
(_HID
,
"*PNP0A03"
)
Error
1068
- ^ String must be entirely alphanumeric
(
*PNP0A03
)
Solution is to remove the “ * ”character,such as converts
1
(
*PNP0A03
)
to:
1
(PNP0A03
)
Too many arguments
1
2
dsdt
.dsl
2672
: Method
(_GLK
,
1
, NotSerialized
)
Warning
2024
- ^ Reserved method has too many arguments
( _GLK requires
0
)
Solution: eliminate the arguments:
1
Method
(_GLK
)
This was a simple one.（＾０＾）
Warning 1099 -Unknown reserved name ^ (_BCG)
On this case the compiler is complaining about the use of “-” on a specified method name.Here is a example:
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2
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6
Method
(_BCG
,
0
, Serialized
)
{
Store
(C136
, Local0
)
Return
(Local0
)
}
}
Just change _BCG to BCG and the compiler will be happy again.
1
2
3
4
5
6
Method
(BCG
,
0
, Serialized
)
{
Store
(C136
, Local0
)
Return
(Local0
)
}
}
Use of reserved word ^ (_T_0)
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2
3
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8
9
10
11
12
13
14
15
16
17
dsdt
.dsl
2928
: Name
(_T_0
, Zero
)
Error
4081
-
Use of reserved word ^
(_T_0
)
dsdt
.dsl
2980
: Name
(_T_1
,
""
)
Error
4081
-
Use of reserved word ^
(_T_1
)
dsdt
.dsl
3012
: Name
(_T_2
, Zero
)
Error
4081
-
Use of reserved word ^
(_T_2
)
dsdt
.dsl
3039
: Name
(_T_0
, Zero
)
Error
4081
-
Use of reserved word ^
(_T_0
)
dsdt
.dsl
3215
: Name
(_T_0
, Zero
)
Error
4081
-
Use of reserved word ^
(_T_0
)
dsdt
.dsl
3404
: Name
(_T_1
, Zero
)
Error
4081
-
Use of reserved word ^
(_T_1
)
The solution consists of changing this:
1
Name
(_T_0
, Zero
)
to this:
1
Name
(T_0
, Zero
)
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