ACPI dmidecode output requested in dmesg output

Please find attached the output of dmidecode after booting with acpi_osi=!Linux as requested in dmesg output. The system seems to be working OK apart from problems with STAC9221 Line In (which has never worked under Linux).

The system is a Dell Dimension 5150.

Regards,

Graham Adams

# dmidecode 2.8
SMBIOS 2.3 present.
65 structures occupying 2313 bytes.
Table at 0x000F0450.

Handle 0xDA00, DMI type 218, 35 bytes OEM-specific Type

	Header and Data:
		DA 23 00 DA B2 00 17 0B 0E 38 00 58 00 58 00 01
		00 59 00 59 00 01 00 05 80 05 80 01 00 FF FF 00
		00 00 00

Handle 0xDA01, DMI type 218, 35 bytes OEM-specific Type

	Header and Data:
		DA 23 01 DA B2 00 17 0B 0E 38 00 10 F5 10 F5 00
		00 11 F5 11 F5 00 00 12 F5 12 F5 00 00 FF FF 00
		00 00 00

Handle 0x0000, DMI type 0, 20 bytes
BIOS Information
Vendor: Dell Inc.
Version: A04
Release Date: 02/03/2006
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 512 kB
Characteristics:
PCI is supported
PNP is supported
APM is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for Toshiba 1.2 MB is supported (int 13h) Print screen service is supported (int 5h) 8042 keyboard services are supported (int 9h) Serial services are supported (int 14h) Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
LS-120 boot is supported
BIOS boot specification is supported
Function key-initiated network boot is supported

Handle 0x0100, DMI type 1, 25 bytes
System Information
Manufacturer: Dell Inc.
Product Name: Dell DM051
Version: Not Specified
Serial Number: 6X8B32J
UUID: 44454C4C-5800-1038-8042-B6C04F33324A Wake-up Type: Power Switch

Handle 0x0200, DMI type 2, 8 bytes Base Board Information
Manufacturer: Dell Inc. Product Name: 0WG261 Version:
Serial Number: ..CN698615BU13CA.

Handle 0x0300, DMI type 3, 13 bytes Chassis Information
Manufacturer: Dell Inc.
Type: Mini Tower
Lock: Not Present
Version: Not Specified Serial Number: 6X8B32J Asset Tag:
Boot-up State: Safe Power Supply State: Safe Thermal State: Safe Security Status: None

Handle 0x0400, DMI type 4, 32 bytes
Processor Information
Socket Designation: Microprocessor
Type: Central Processor
Family: Pentium 4
Manufacturer: Intel
ID: 43 0F 00 00 FF FB EB BF
Signature: Type 0, Family 15, Model 4, Stepping 3 Flags:
FPU (Floating-point unit on-chip) VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension) MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported) APIC (On-chip APIC hardware supported) SEP (Fast system call)
MTRR (Memory type range registers) PGE (Page global enable)
MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table)
PSE-36 (36-bit page size extension) CLFSH (CLFLUSH instruction supported) DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (Fast floating-point save and restore) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop)
HTT (Hyper-threading technology)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Not Specified
Voltage: 1.5 V
External Clock: 800 MHz
Max Speed: 4000 MHz
Current Speed: 3200 MHz
Status: Populated, Enabled
Upgrade: ZIF Socket
L1 Cache Handle: 0x0700
L2 Cache Handle: 0x0701
L3 Cache Handle: Not Provided

Handle 0x0700, DMI type 7, 19 bytes
Cache Information
Socket Designation: Not Specified
Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Back
Location: Internal
Installed Size: 16 KB
Maximum Size: 16 KB
Supported SRAM Types:
Other
Installed SRAM Type: Other
Speed: Unknown
Error Correction Type: None
System Type: Data
Associativity: 8-way Set-associative

Handle 0x0701, DMI type 7, 19 bytes
Cache Information
Socket Designation: Not Specified
Configuration: Enabled, Not Socketed, Level 2 Operational Mode: Varies With Memory Address
Location: Internal
Installed Size: 2048 KB
Maximum Size: 2048 KB
Supported SRAM Types:
Other
Installed SRAM Type: Other
Speed: Unknown
Error Correction Type: Single-bit ECC System Type: Unified
Associativity: 8-way Set-associative

Handle 0x0805, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB1 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x0806, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB2 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x0807, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB3 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x0808, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB4 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x0809, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB5 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x080A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB6 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x080B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB7 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x080C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB8 Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x080D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: ENET Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: RJ-45
Port Type: Network Port

Handle 0x080E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: MIC Internal Connector Type: None
External Reference Designator: Not Specified External Connector Type: Mini Jack (headphones) Port Type: Audio Port

Handle 0x080F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: LINE-OUT Internal Connector Type: None
External Reference Designator: Not Specified External Connector Type: Mini Jack (headphones) Port Type: Audio Port

Handle 0x0810, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: LINE-IN Internal Connector Type: None
External Reference Designator: Not Specified External Connector Type: Mini Jack (headphones) Port Type: Audio Port

Handle 0x0811, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: HP-OUT Internal Connector Type: None
External Reference Designator: Not Specified External Connector Type: Mini Jack (headphones) Port Type: Audio Port

Handle 0x0812, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: MONITOR Internal Connector Type: None External Reference Designator: Not Specified External Connector Type: DB-15 female Port Type: Video Port

Handle 0x090A, DMI type 9, 13 bytes System Slot Information
Designation: PEG
Type: x16 PCI Express Current Usage: In Use
Length: Long Characteristics:
3.3 V is provided PME signal is supported

Handle 0x0901, DMI type 126, 13 bytes Inactive

Handle 0x0902, DMI type 9, 13 bytes System Slot Information
Designation: SLOT2
Type: x1 PCI Express Current Usage: Available
Length: Long Characteristics:
3.3 V is provided PME signal is supported

Handle 0x0903, DMI type 9, 13 bytes System Slot Information
Designation: SLOT3
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 3
Characteristics:
5.0 V is provided 3.3 V is provided PME signal is supported

Handle 0x0904, DMI type 9, 13 bytes System Slot Information
Designation: SLOT4
Type: 32-bit PCI
Current Usage: In Use
Length: Long
ID: 4
Characteristics:
5.0 V is provided 3.3 V is provided PME signal is supported

Handle 0x0905, DMI type 126, 13 bytes Inactive

Handle 0x0906, DMI type 126, 13 bytes Inactive

Handle 0x0A00, DMI type 10, 6 bytes
On Board Device Information
Type: Video
Status: Disabled
Description: Intel Graphics Media Accelerator 950

Handle 0x0A02, DMI type 10, 6 bytes
On Board Device Information
Type: Ethernet
Status: Enabled
Description: Intel PRO/100 VE Network Connections

Handle 0x0A03, DMI type 10, 6 bytes
On Board Device Information
Type: Sound
Status: Enabled
Description: High Definition Audio Controller

Handle 0x0B00, DMI type 11, 5 bytes OEM Strings
String 1: www.dell.com

Handle 0x0D00, DMI type 13, 22 bytes
BIOS Language Information
Installable Languages: 1
en|US|iso8859-1
Currently Installed Language: en|US|iso8859-1

Handle 0x0F00, DMI type 15, 29 bytes
System Event Log
Area Length: 2049 bytes
Header Start Offset: 0x0000
Header Length: 16 bytes
Data Start Offset: 0x0010
Access Method: Memory-mapped physical 32-bit address Access Address: 0xFFF81000
Status: Valid, Not Full
Change Token: 0x00000017
Header Format: Type 1
Supported Log Type Descriptors: 3 Descriptor 1: POST error
Data Format 1: POST results bitmap Descriptor 2: System limit exceeded
Data Format 2: System management Descriptor 3: Log area reset/cleared
Data Format 3: None

Handle 0x1000, DMI type 16, 15 bytes Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None Maximum Capacity: 1 GB
Error Information Handle: Not Provided Number Of Devices: 4

Handle 0x1100, DMI type 17, 27 bytes Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: DIMM_1
Bank Locator: Not Specified
Type: DDR
Type Detail: Synchronous
Speed: 533 MHz (1.9 ns)
Manufacturer: 7F7F7F0B00000000 Serial Number: 01A60435
Asset Tag: Not Specified
Part Number: NT512T64U88A0BY-37

Handle 0x1101, DMI type 17, 27 bytes Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: DIMM_3
Bank Locator: Not Specified
Type: DDR
Type Detail: Synchronous
Speed: 533 MHz (1.9 ns)
Manufacturer: 7F7F7F0B00000000 Serial Number: E5A50435
Asset Tag: Not Specified
Part Number: NT512T64U88A0BY-37

Handle 0x1102, DMI type 17, 27 bytes Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: DIMM_2
Bank Locator: Not Specified
Type: DDR
Type Detail: Synchronous
Speed: 533 MHz (1.9 ns)
Manufacturer: 7F7F7F0B00000000 Serial Number: AB1B0233
Asset Tag: Not Specified
Part Number: NT512T64U88A0BY-37

Handle 0x1103, DMI type 17, 27 bytes Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided Total Width: 64 bits
Data Width: 64 bits
Size: 512 MB
Form Factor: DIMM
Set: None
Locator: DIMM_4
Bank Locator: Not Specified
Type: DDR
Type Detail: Synchronous
Speed: 533 MHz (1.9 ns)
Manufacturer: 7F7F7F0B00000000 Serial Number: 74170233
Asset Tag: Not Specified
Part Number: NT512T64U88A0BY-37

Handle 0x1301, DMI type 19, 15 bytes Memory Array Mapped Address

	Starting Address: 0x00000000000
	Ending Address: 0x0007FFFFFFF
	Range Size: 2 GB
	Physical Array Handle: 0x1000
	Partition Width: 0

Handle 0x1402, DMI type 20, 19 bytes Memory Device Mapped Address

	Starting Address: 0x00000000000
	Ending Address: 0x0001FFFFFFF
	Range Size: 512 MB
	Physical Device Handle: 0x1100
	Memory Array Mapped Address Handle: 0x1301
	Partition Row Position: 1

Handle 0x1403, DMI type 20, 19 bytes Memory Device Mapped Address

	Starting Address: 0x00020000000
	Ending Address: 0x0003FFFFFFF
	Range Size: 512 MB
	Physical Device Handle: 0x1101
	Memory Array Mapped Address Handle: 0x1301
	Partition Row Position: 1

Handle 0x1404, DMI type 20, 19 bytes Memory Device Mapped Address

	Starting Address: 0x00040000000
	Ending Address: 0x0005FFFFFFF
	Range Size: 512 MB
	Physical Device Handle: 0x1102
	Memory Array Mapped Address Handle: 0x1301
	Partition Row Position: 1

Handle 0x1405, DMI type 20, 19 bytes Memory Device Mapped Address

	Starting Address: 0x00060000000
	Ending Address: 0x0007FFFFFFF
	Range Size: 512 MB
	Physical Device Handle: 0x1103
	Memory Array Mapped Address Handle: 0x1301
	Partition Row Position: 1

Handle 0x1800, DMI type 24, 5 bytes Hardware Security
Power-On Password Status: Enabled Keyboard Password Status: Not Implemented Administrator Password Status: Enabled Front Panel Reset Status: Not Implemented

Handle 0x1900, DMI type 25, 9 bytes

	System Power Controls
	Next Scheduled Power-on: *-* 00:00:00

Handle 0x1B10, DMI type 27, 12 bytes Cooling Device

	Type: Fan
	Status: OK
	OEM-specific Information: 0x0000DD00

Handle 0x1B11, DMI type 126, 12 bytes Inactive

Handle 0x1B12, DMI type 126, 12 bytes Inactive

Handle 0x2000, DMI type 32, 11 bytes System Boot Information
Status: No errors detected

Handle 0x8100, DMI type 129, 8 bytes OEM-specific Type

	Header and Data:
		81 08 00 81 01 01 02 01
	Strings:
		Intel_ASF
		Dell_ASF_002

Handle 0x8800, DMI type 136, 6 bytes OEM-specific Type

	Header and Data:
		88 06 00 88 5A 5A

Handle 0xD000, DMI type 208, 10 bytes OEM-specific Type

	Header and Data:
		D0 0A 00 D0 01 03 FE 00 D2 01

Handle 0xD400, DMI type 212, 212 bytes OEM-specific Type

	Header and Data:
		D4 D4 00 D4 70 00 71 00 00 10 2D 2E 42 00 11 FE
		01 43 00 11 FE 00 07 00 23 8F 00 08 00 23 F3 00
		09 00 23 F3 04 0A 00 23 F3 08 0B 00 23 8F 10 0C
		00 23 8F 20 0E 00 23 8F 30 0D 00 23 8C 40 A6 00
		23 8C 41 A7 00 23 8C 42 05 01 22 FD 02 06 01 22
		FD 00 4E 01 28 DF 00 4F 01 28 DF 20 8C 00 22 FE
		00 8D 00 22 FE 01 9B 00 25 3F 40 9C 00 25 3F 00
		09 01 25 3F 80 A1 00 26 F3 00 A2 00 26 F3 08 A3
		00 26 F3 04 9F 00 26 FD 02 A0 00 26 FD 00 9D 00
		11 FB 04 9E 00 11 FB 00 54 01 23 7F 00 55 01 23
		7F 80 5C 00 78 BF 40 5D 00 78 BF 00 04 80 78 F5
		0A 01 A0 78 F5 00 93 00 7B 7F 80 94 00 7B 7F 00
		8A 00 37 DF 20 8B 00 37 DF 00 03 C0 67 00 05 FF
		FF 00 00 00

Handle 0xD401, DMI type 212, 152 bytes OEM-specific Type

	Header and Data:
		D4 98 01 D4 70 00 71 00 03 40 59 6D 2D 00 59 FC
		02 2E 00 59 FC 00 6E 00 59 FC 01 28 00 59 3F 00
		29 00 59 3F 40 2A 00 59 3F 80 2B 00 5A 00 00 2C
		00 5B 00 00 55 00 59 F3 00 6D 00 59 F3 04 1C 00
		55 FB 04 1D 00 55 FB 00 19 00 55 E7 00 1A 00 55
		E7 08 1B 00 55 E7 10 23 00 55 7F 00 22 00 55 7F
		80 EB 00 55 FE 00 EA 00 55 FE 01 01 01 51 3F 00
		02 01 51 3F 40 03 01 51 3F 80 04 01 51 3F C0 40
		01 54 EF 00 41 01 54 EF 10 42 01 54 F7 00 43 01
		54 F7 08 FF FF 00 00 00

Handle 0xD402, DMI type 212, 77 bytes OEM-specific Type

	Header and Data:
		D4 4D 02 D4 70 00 71 00 00 10 2D 2E 2D 01 21 FE
		01 2E 01 21 FE 00 2F 01 21 7F 00 30 01 21 7F 80
		E2 00 27 7F 00 E3 00 27 7F 80 E4 00 27 BF 00 E5
		00 27 BF 40 D1 00 22 7F 80 D2 00 22 7F 00 37 01
		21 F1 00 39 01 21 F1 02 FF FF 00 00 00

Handle 0xD403, DMI type 212, 97 bytes OEM-specific Type

	Header and Data:
		D4 61 03 D4 70 00 71 00 03 40 59 6D 17 01 52 FE
		00 18 01 52 FE 01 19 01 52 FB 00 1A 01 52 FB 04
		1B 01 52 FD 00 1C 01 52 FD 02 1D 01 52 F7 00 1E
		01 52 F7 08 09 40 52 EF 00 08 40 52 EF 10 0B 40
		52 DF 00 0A 40 52 DF 20 0D 40 52 BF 00 0C 40 52
		BF 40 0F 40 52 7F 00 0E 40 52 7F 80 FF FF 00 00
		00

Handle 0xD800, DMI type 126, 9 bytes Inactive

Handle 0xDD00, DMI type 221, 19 bytes OEM-specific Type

	Header and Data:
		DD 13 00 DD 00 01 00 00 00 10 F5 00 00 00 00 00
		00 00 00

Handle 0xDD01, DMI type 221, 19 bytes OEM-specific Type

	Header and Data:
		DD 13 01 DD 00 01 00 00 00 11 F5 00 00 00 00 00
		00 00 00

Handle 0xDD02, DMI type 221, 19 bytes OEM-specific Type

	Header and Data:
		DD 13 02 DD 00 01 00 00 00 12 F5 00 00 00 00 00
		00 00 00

Handle 0xDE00, DMI type 222, 13 bytes OEM-specific Type

	Header and Data:
		DE 0D 00 DE C1 01 FF FF 00 00 00 00 00

Handle 0x7F00, DMI type 127, 4 bytes End Of Table

This is "different"....

some magic happens at initialization and at wake from suspend-to-disk to PCI device 00:1d -- which is apparently USB.

The code reads as if Dell really did intend to do something special for Linux - at least the version of Linux they were testing...

for non-Linux, ISLI does some SMI magic, for Linux the SMI magic is skipped.

Does USB work properly in both cases, both before and after suspend to disk?

thanks,
-Len

       Method (ISLI, 0, NotSerialized)
        {
            If (CondRefOf (_OSI, Local0))
            {
                If (_OSI ("Linux"))
                {
                    Return (One)
                }
                Else
                {
                    Return (Zero)
                }
            }
            Else
            {
                Return (Zero)
            }
        }

...

    Method (GUSB, 0, NotSerialized)
    {
        If (ISLI ())	# the only reference to ISLI is this one
        {
            Return (Zero)
		# return valie of GUSB is ignored,
		# so this is the NO-OP path
        }
        Else
        {
            Return (SMI2 (0xBA))
        }
    }
...
# surely this is SMI command/SMI Data method:
# no telling what the actual command 0xBA is, though...

Method (SMI2, 1, NotSerialized)
{
Acquire (SMIM, 0xFFFF)
Store (Arg0, SMIC)
Store (SMIC, Local0)
Store (SMID, Local0)
ShiftLeft (Local0, 0x08, Local0)
Add (SMIC, Local0, Local0)
Release (SMIM)
Return (Local0)
}
...

    Method (_WAK, 1, NotSerialized)
    {
        If (LEqual (Arg0, 0x04))
        {
# we come here on wakeup from suspend-to-disk

            GUSB ()
        }

        If (Or (And (PMS2, One), Or (And (LNot (HACK ()),
            And (GLBT, 0x11)), And (LNot (HACK ()), And (THRP, 0x18
            )))))
        {
            Notify (\_SB.VBTN, 0x02)
        }

        Return (Zero)
    }
...
   Scope (_SB.PCI0)
    {
        Device (USB0)
        {
            Name (_ADR, 0x001D0000)
            Name (_UID, 0x05)
            Name (_PRW, Package (0x02)
            {
                0x03,
                0x03
            })
            OperationRegion (UPC1, PCI_Config, 0xC1, One)
            Field (UPC1, ByteAcc, NoLock, Preserve)
            {
                LEGK,   8
            }

            Method (_INI, 0, NotSerialized)
            {
                If (HACK ()) {}
                Else
                {
                    Store (LEGK, Local0)
                    And (Local0, 0x60, Local0)
                    Or (Local0, 0x20, Local0)
                    Store (Local0, LEGK)
                }

                GUSB ()
            }

...
This is different too....

        Method (_INI, 0, NotSerialized)
        {
            If (CondRefOf (_OSI, Local0))
            {
                If (_OSI ("Windows 2001"))
                {
                    Store (0x04, MSOS)
# yes, Linux does come here
# MSOS is effectively "XP" or newer
                }
            }
        }

...

        Method (HACK, 0, NotSerialized)
        {
            If (LEqual (MSOS, 0x04))
            {
                Store (CMRD (0x6F), Local0)
                Or (Local0, 0x04, Local0)
                CMWR (0x6F, Local0)
# Linux come shere b/c of OSI(Microsoft Windows 2001)
                Return (One)
            }
            Else
            {
                Store (CMRD (0x6F), Local0)
                And (Local0, 0xFB, Local0)
                CMWR (0x6F, Local0)
            }

            Add (SizeOf (_OS), One, Local0)
            Store (Local0, Local1)
            Name (BUF0, Buffer (Local0) {})
            Name (BUF1, Buffer (Local0) {})
            Name (OSNT, One)
            Name (OS98, One)
            Store (_OS, BUF0)
            Store ("Microsoft Windows NT", BUF1)
            While (Local0)
            {
# an in-line strcmp()...
                Decrement (Local0)
                If (LEqual (DerefOf (Index (BUF0, Local0)), DerefOf (Index (BUF1,
                    Local0)))) {}
                Else
                {
                    Store (Zero, OSNT)
                }
            }

            If (OSNT)
            {
                Store (0x03, MSOS)
                Return (One)
            }
            Else
            {
                Store ("Microsoft Windows", BUF1)
                While (Local1)
                {
                    Decrement (Local1)
                    If (LEqual (DerefOf (Index (BUF0, Local1)), DerefOf (Index (BUF1,
                        Local1)))) {}
                    Else
                    {
                        Store (Zero, OS98)
                    }
                }

                If (OS98)
                {
                    Store (One, MSOS)
                    Return (Zero)
                }
                Else
                {
                    Store (0x02, MSOS)
                    Return (Zero)
                }
            }
        }

Hmmm, so you've to 2.6.22 or earlier where the default is acpi_osi=Linux and suspend to disk fails; but when you add "acpi_osi=!Linux" suspend to disk works?!

I guess it is important that we stay Windows compatible on this box and trigger whatever SMI Dell has in that path.

thanks,
-Len

Thanks for testing -- I've removed the comment that OSI(Linux) breaks hibernate. I'll keep OSI(Linux) disabled on this box since it is a risk and has not proven to help anything.

-Len