Comment 5 for bug 179138

Mine is a HP Pavilion dv6000 ,and I installed newest Ubuntu hardy( 23-Apr-2008) , Fn-F4 for projecter is not work either.
ubuntu@laptop:~$ sudo dmidecode
# dmidecode 2.9
SMBIOS 2.4 present.
19 structures occupying 735 bytes.
Table at 0x3F6DF000.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
 Vendor: Hewlett-Packard
 Version: F.23
 Release Date: 10/03/2007
 Address: 0xE69E0
 Runtime Size: 103968 bytes
 ROM Size: 1024 kB
 Characteristics:
  ISA is supported
  PCI is supported
  PNP is supported
  BIOS is upgradeable
  BIOS shadowing is allowed
  ESCD support is available
  Boot from CD is supported
  Selectable boot is supported
  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
  AGP is supported
  Smart battery is supported
  BIOS boot specification is supported
  Targeted content distribution is supported

Handle 0x0001, DMI type 1, 27 bytes
System Information
 Manufacturer: Hewlett-Packard
 Product Name: HP Pavilion dv6500 Notebook PC
 Version: Rev 1
 Serial Number: CNF74523X2
 UUID: 434E4637-3435-3233-5832-001B24D09BFF
 Wake-up Type: Power Switch
 SKU Number: GS797UA#ABA
 Family: 103C_5335KV

Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
 Manufacturer: Quanta
 Product Name: 30CC
 Version: 79.22
 Serial Number: None

Handle 0x0003, DMI type 3, 21 bytes
Chassis Information
 Manufacturer: Quanta
 Type: Notebook
 Lock: Not Present
 Version: N/A
 Serial Number: None
 Asset Tag:
 Boot-up State: Safe
 Power Supply State: Safe
 Thermal State: Safe
 Security Status: None
 OEM Information: 0x00000004
 Height: 32 U
 Number Of Power Cords: 32

Handle 0x0004, DMI type 4, 35 bytes
Processor Information
 Socket Designation: U2E1
 Type: Central Processor
 Family: Other
 Manufacturer: Intel
 ID: FD 06 00 00 FF FB EB BF
 Version: Intel(R) Core(TM)2 Duo CPU T5250
 Voltage: 3.3 V
 External Clock: 667 MHz
 Max Speed: 1500 MHz
 Current Speed: 1500 MHz
 Status: Populated, Enabled
 Upgrade: Socket 478
 L1 Cache Handle: 0x0005
 L2 Cache Handle: 0x0006
 L3 Cache Handle: Not Provided
 Serial Number: Not Specified
 Asset Tag: Not Specified
 Part Number: Not Specified

Handle 0x0005, DMI type 7, 19 bytes
Cache Information
 Socket Designation: L1 Cache
 Configuration: Enabled, Socketed, Level 1
 Operational Mode: Write Back
 Location: Internal
 Installed Size: 64 KB
 Maximum Size: 64 KB
 Supported SRAM Types:
  Burst
  Pipeline Burst
  Asynchronous
 Installed SRAM Type: Asynchronous
 Speed: Unknown
 Error Correction Type: Unknown
 System Type: Unknown
 Associativity: Unknown

Handle 0x0006, DMI type 7, 19 bytes
Cache Information
 Socket Designation: L2 Cache
 Configuration: Enabled, Socketed, Level 2
 Operational Mode: Write Back
 Location: External
 Installed Size: 2048 KB
 Maximum Size: 2048 KB
 Supported SRAM Types:
  Burst
  Pipeline Burst
  Asynchronous
 Installed SRAM Type: Burst
 Speed: Unknown
 Error Correction Type: Unknown
 System Type: Unknown
 Associativity: Unknown

Handle 0x0007, DMI type 9, 13 bytes
System Slot Information
 Designation: PCI Express Slot 1
 Type: 64-bit PCI Express
 Current Usage: Available
 Length: Long
 ID: 0
 Characteristics:
  5.0 V is provided
  3.3 V is provided

Handle 0x0008, DMI type 9, 13 bytes
System Slot Information
 Designation: PCI Express Slot 2
 Type: 64-bit PCI Express
 Current Usage: Available
 Length: Long
 ID: 0
 Characteristics:
  5.0 V is provided
  3.3 V is provided
  PME signal is supported
  Hot-plug devices are supported

Handle 0x0009, DMI type 9, 13 bytes
System Slot Information
 Designation: PCI Express Slot 6
 Type: 64-bit PCI Express
 Current Usage: Available
 Length: Long
 ID: 0
 Characteristics:
  5.0 V is provided
  3.3 V is provided
  PME signal is supported

Handle 0x000A, DMI type 10, 6 bytes
On Board Device Information
 Type: Video
 Status: Enabled
 Description: 8

Handle 0x000B, DMI type 11, 5 bytes
OEM Strings
 String 1: $HP$
 String 2: LOC#ABA
 String 3: ABS 70/71 79 7A 7B 7C

Handle 0x000C, DMI type 16, 15 bytes
Physical Memory Array
 Location: System Board Or Motherboard
 Use: System Memory
 Error Correction Type: None
 Maximum Capacity: 4 GB
 Error Information Handle: Not Provided
 Number Of Devices: 2

Handle 0x000D, DMI type 17, 27 bytes
Memory Device
 Array Handle: 0x000C
 Error Information Handle: No Error
 Total Width: 64 bits
 Data Width: 64 bits
 Size: 512 MB
 Form Factor: DIMM
 Set: 1
 Locator: DIMM 1
 Bank Locator: Bank 0,1
 Type: DDR2
 Type Detail: Synchronous
 Speed: 667 MHz (1.5 ns)
 Manufacturer: Not Specified
 Serial Number: Not Specified
 Asset Tag: Not Specified
 Part Number: Not Specified

Handle 0x000E, DMI type 17, 27 bytes
Memory Device
 Array Handle: 0x000C
 Error Information Handle: No Error
 Total Width: 64 bits
 Data Width: 64 bits
 Size: 512 MB
 Form Factor: DIMM
 Set: 1
 Locator: DIMM 2
 Bank Locator: Bank 2,3
 Type: DDR2
 Type Detail: Synchronous
 Speed: 667 MHz (1.5 ns)
 Manufacturer: Not Specified
 Serial Number: Not Specified
 Asset Tag: Not Specified
 Part Number: Not Specified

Handle 0x000F, DMI type 19, 15 bytes
Memory Array Mapped Address
 Starting Address: 0x00000000000
 Ending Address: 0x0003FFFFFFF
 Range Size: 1 GB
 Physical Array Handle: 0x000C
 Partition Width: 0

Handle 0x0010, DMI type 20, 19 bytes
Memory Device Mapped Address
 Starting Address: 0x00000000000
 Ending Address: 0x0001FFFFFFF
 Range Size: 512 MB
 Physical Device Handle: 0x000D
 Memory Array Mapped Address Handle: 0x000F
 Partition Row Position: 2
 Interleave Position: 2
 Interleaved Data Depth: 2

Handle 0x0011, DMI type 32, 20 bytes
System Boot Information
 Status: <OUT OF SPEC>

Handle 0x0012, DMI type 127, 4 bytes
End Of Table