dmidecode 2.6.23.9 + ACER 7720Z

dump attached

# dmidecode 2.9
SMBIOS 2.4 present.
37 structures occupying 1489 bytes.
Table at 0x000E2AE0.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: Acer
Version: V1.18
Release Date: 09/27/2007
ROM Size: 1024 kB
Characteristics:
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
BIOS ROM is socketed
EDD is supported
Japanese floppy for NEC 9800 1.2 MB is supported (int 13h) Japanese floppy for Toshiba 1.2 MB is supported (int 13h) 5.25"/360 KB floppy services are supported (int 13h) 5.25"/1.2 MB floppy services are supported (int 13h) 3.5"/720 KB floppy services are supported (int 13h) 3.5"/2.88 MB floppy services are supported (int 13h) 8042 keyboard services are supported (int 9h) CGA/mono video services are supported (int 10h) ACPI is supported
USB legacy is supported
Targeted content distribution is supported

Handle 0x0001, DMI type 1, 27 bytes System Information

	Manufacturer: Acer      
	Product Name: Aspire 7720Z    
	Version: V1.18
	Serial Number: LXALJ0X0057431A4311601
	UUID: FE2BD8EC-7476-80B2-E6F3-001B3863F8F0
	Wake-up Type: Power Switch
	SKU Number: None
	Family: None

Handle 0x0002, DMI type 2, 16 bytes
Base Board Information
Manufacturer: Acer
Product Name: Poyang
Version: V1.18
Serial Number: Base Board Serial Number Asset Tag: Base Board Asset Tag Features:
Board is a hosting board
Board is replaceable
Location In Chassis: Base Board Chassis Location Chassis Handle: 0x0003
Type: Motherboard
Contained Object Handles: 0

Handle 0x0003, DMI type 3, 22 bytes Chassis Information
Manufacturer: Acer
Type: Other
Lock: Not Present
Version: V1.18
Serial Number: Chassis Serial Number Asset Tag:
Boot-up State: Safe
Power Supply State: Safe Thermal State: Safe
Security Status: None
OEM Information: 0x00000000
Height: Unspecified
Number Of Power Cords: 1 Contained Elements: 0

Handle 0x0004, DMI type 9, 13 bytes System Slot Information
Designation: J6C1
Type: x16 PCI Express
Current Usage: Available
Length: Other
ID: 0
Characteristics:
PME signal is supported Hot-plug devices are supported

Handle 0x0005, DMI type 9, 13 bytes System Slot Information
Designation: J8C1
Type: x1 PCI Express
Current Usage: Available
Length: Other
ID: 0
Characteristics:
PME signal is supported Hot-plug devices are supported

Handle 0x0006, DMI type 9, 13 bytes System Slot Information
Designation: J7C1
Type: x1 PCI Express
Current Usage: Available
Length: Other
ID: 1
Characteristics:
PME signal is supported Hot-plug devices are supported

Handle 0x0007, DMI type 9, 13 bytes System Slot Information
Designation: J8D1
Type: x1 PCI Express
Current Usage: Available
Length: Other
ID: 2
Characteristics:
PME signal is supported Hot-plug devices are supported

Handle 0x0008, DMI type 9, 13 bytes System Slot Information
Designation: J8B1
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 3
Characteristics:
5.0 V is provided
3.3 V is provided Cardbus is supported Modem ring resume is supported PME signal is supported SMBus signal is supported

Handle 0x0009, DMI type 9, 13 bytes System Slot Information
Designation: J9B1
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 4
Characteristics:
5.0 V is provided
3.3 V is provided Cardbus is supported Modem ring resume is supported PME signal is supported SMBus signal is supported

Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: PS/2 Internal Connector Type: None External Reference Designator: Keyboard External Connector Type: PS/2 Port Type: Keyboard Port

Handle 0x000B, DMI type 8, 9 bytes Port Connector Information
Internal Reference Designator: PS/2 Internal Connector Type: None External Reference Designator: Mouse External Connector Type: PS/2 Port Type: Mouse Port

Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB Internal Connector Type: None External Reference Designator: USB 1 External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB Internal Connector Type: None External Reference Designator: USB 2 External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB Internal Connector Type: None External Reference Designator: USB 3 External Connector Type: Access Bus (USB) Port Type: USB

Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: LAN Internal Connector Type: None External Reference Designator: Network External Connector Type: RJ-45 Port Type: Network Port

Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J2H2 Internal Connector Type: On Board IDE External Reference Designator: OnBoard Primary IDE External Connector Type: None
Port Type: Other

Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: J2H1 Internal Connector Type: On Board IDE External Reference Designator: OnBoard Secondary IDE External Connector Type: None
Port Type: Other

Handle 0x0012, DMI type 10, 6 bytes
On Board Device Information
Type: Video
Status: Enabled
Description: Intel Video Graphics Controller

Handle 0x0013, DMI type 10, 6 bytes On Board Device Information
Type: Ethernet
Status: Enabled
Description: Broadcom Lan Controller

Handle 0x0014, DMI type 11, 6 bytes
OEM Strings
String 1: EFI Software for Nettiling and Poyang

Handle 0x0015, DMI type 12, 5 bytes System Configuration Options

	Option 1: J1D4:1-2,5-6,9-10Default;2-3CMOS clr,6-7Pswd clr,10-11Recovery

Handle 0x0016, DMI type 21, 7 bytes Built-in Pointing Device
Type: Touch Pad
Interface: PS/2
Buttons: 4

Handle 0x0017, DMI type 22, 26 bytes Portable Battery
Location: Internal Battery
Manufacturer: Sony
Serial Number: Not Supported
Name: Li-ion(6cell)
Chemistry: Lithium Ion
Design Capacity: 51840 mWh Design Voltage: 10800 mV
SBDS Version: Not Specified Maximum Error: Unknown
SBDS Manufacture Date: 1980-00-00 OEM-specific Information: 0xFFFFFFFF

Handle 0x0018, DMI type 16, 15 bytes Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None Maximum Capacity: 2 GB
Error Information Handle: Not Provided Number Of Devices: 2

Handle 0x0019, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0018
Error Information Handle: Not Provided Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: DIMM0
Bank Locator: BANK 0
Type: DDR2
Type Detail: Synchronous
Speed: 533 MHz (1.9 ns)
Manufacturer: 0xCE00000000000000
Serial Number: 0x73332746
Asset Tag: Unknown
Part Number: 0x4D342037305432393533455A332D43453620

Handle 0x001A, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM0
Bank Connections: 0 0
Current Speed: 1 ns
Type: DIMM
Installed Size: 1024 MB (Single-bank Connection) Enabled Size: 1024 MB (Single-bank Connection) Error Status: OK

Handle 0x001B, DMI type 20, 19 bytes Memory Device Mapped Address

	Starting Address: 0x00000000000
	Ending Address: 0x0003FFFFFFF
	Range Size: 1 GB
	Physical Device Handle: 0x0019
	Memory Array Mapped Address Handle: 0x001F
	Partition Row Position: 1
	Interleave Position: 1
	Interleaved Data Depth: 1

Handle 0x001C, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0018
Error Information Handle: Not Provided Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: None
Locator: DIMM2
Bank Locator: BANK 2
Type: DDR2
Type Detail: Synchronous
Speed: 533 MHz (1.9 ns)
Manufacturer: 0xCE00000000000000
Serial Number: 0x733327AB
Asset Tag: Unknown
Part Number: 0x4D342037305432393533455A332D43453620

Handle 0x001D, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM2
Bank Connections: 0 0
Current Speed: 1 ns
Type: DIMM
Installed Size: 1024 MB (Single-bank Connection) Enabled Size: 1024 MB (Single-bank Connection) Error Status: OK

Handle 0x001E, DMI type 20, 19 bytes Memory Device Mapped Address

	Starting Address: 0x00040000000
	Ending Address: 0x0007FFFFFFF
	Range Size: 1 GB
	Physical Device Handle: 0x001C
	Memory Array Mapped Address Handle: 0x001F
	Partition Row Position: 2
	Interleave Position: 2
	Interleaved Data Depth: 1

Handle 0x001F, DMI type 19, 15 bytes Memory Array Mapped Address

	Starting Address: 0x00000000000
	Ending Address: 0x0007FFFFFFF
	Range Size: 2 GB
	Physical Array Handle: 0x0018
	Partition Width: 0

Handle 0x0020, DMI type 4, 35 bytes
Processor Information
Socket Designation: uPGA-478
Type: Central Processor
Family: Pentium M
Manufacturer: Intel(R) Corporation
ID: FD 06 00 00 FF FB EB BF
Signature: Type 0, Family 6, Model 15, Stepping 13 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: Intel(R) Pentium(R) Dual CPU T2310 @ 1.46GHz
Voltage: 1.6 V
External Clock: 133 MHz
Max Speed: 1466 MHz
Current Speed: 1466 MHz
Status: Populated, Enabled
Upgrade: Socket 478
L1 Cache Handle: 0x0023
L2 Cache Handle: 0x0021
L3 Cache Handle: Not Provided
Serial Number: NotSupport
Asset Tag: FFFF
Part Number: FFFF

Handle 0x0021, DMI type 7, 19 bytes
Cache Information
Socket Designation: L2 Cache
Configuration: Enabled, Not Socketed, Level 2 Operational Mode: Write Back
Location: Internal
Installed Size: 1024 KB
Maximum Size: 1024 KB
Supported SRAM Types:
Asynchronous
Installed SRAM Type: Asynchronous
Speed: Unknown
Error Correction Type: Single-bit ECC System Type: Unified
Associativity: 4-way Set-associative

Handle 0x0022, DMI type 7, 19 bytes
Cache Information
Socket Designation: L1 Cache
Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Back
Location: Internal
Installed Size: 32 KB
Maximum Size: 32 KB
Supported SRAM Types:
Asynchronous
Installed SRAM Type: Asynchronous
Speed: Unknown
Error Correction Type: Single-bit ECC System Type: Instruction
Associativity: 8-way Set-associative

Handle 0x0023, DMI type 7, 19 bytes
Cache Information
Socket Designation: L1 Cache
Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Back
Location: Internal
Installed Size: 32 KB
Maximum Size: 32 KB
Supported SRAM Types:
Asynchronous
Installed SRAM Type: Asynchronous
Speed: Unknown
Error Correction Type: Single-bit ECC System Type: Data
Associativity: 8-way Set-associative

Handle 0x0024, DMI type 127, 4 bytes End Of Table

System Information
Manufacturer: Acer
Product Name: Aspire 7720Z
Version: V1.18

With 2.6.22, did you notice any functional difference with "acpi_osi=!Linux"?

(or since the default changed at 2.6.23, with 2.6.23 or later
do you notice any difference with "acpi_osi=Linux"?)

Please send me the output from acpidump.
If you don't have acpidump, you can get it from pmtools here:
http://www.lesswatts.org/projects/acpi/utilities.php

thanks,
-Len