Hi,

Last year, a patch was made for the "HP t5740e Thin Client" (see 
http://lists.freedesktop.org/archives/dri-devel/2012-May/023245.html). This 
device reports an lvds panel, but does not really have one.

The predecessor of this device is the "hp t5740", which also does not have an 
lvds panel. This patch will add the same quirk for this device. The dmidecode 
output is attached below the patch.

Regards,
Ben Mesman.

===

--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -748,6 +748,14 @@
        },
        {
                .callback = intel_no_lvds_dmi_callback,
+               .ident = "Hewlett-Packard hp t5740",
+               .matches = {
+                       DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "hp t5740"),
+               },
+       },
+       {
+               .callback = intel_no_lvds_dmi_callback,
                .ident = "Hewlett-Packard HP t5740e Thin Client",
                .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),

===

# dmidecode 2.11
SMBIOS 2.6 present.
43 structures occupying 1552 bytes.
Table at 0x000FD100.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
        Vendor: American Megatrends Inc.
        Version: 786R8 v1.04
        Release Date: 03/22/2011
        Address: 0xE0000
        Runtime Size: 128 kB
        ROM Size: 1024 kB
        Characteristics:
                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
                EDD is supported
                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)
                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)
                CGA/mono video services are supported (int 10h)
                ACPI is supported
                USB legacy is supported
                LS-120 boot is supported
                ATAPI Zip drive boot is supported
                BIOS boot specification is supported
                Function key-initiated network boot is supported
                Targeted content distribution is supported
        BIOS Revision: 8.15

Handle 0x0001, DMI type 1, 27 bytes
System Information
        Manufacturer: Hewlett-Packard
        Product Name: hp t5740
        Version:    
        Serial Number: CNVA190LKX
        UUID: 007F6E00-0BBF-E111-83A5-D5B139101A00
        Wake-up Type: Power Switch
        SKU Number: Climbers
        Family: 103C_53302C

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
        Manufacturer: Hewlett-Packard
        Product Name: 3641h
        Version:    
        Serial Number: CNVA190LKX
        Asset Tag: Climbers
        Features:
                Board is a hosting board
                Board is replaceable
        Location In Chassis: Climbers
        Chassis Handle: 0x0003
        Type: Motherboard
        Contained Object Handles: 0

Handle 0x0003, DMI type 3, 21 bytes
Chassis Information
        Manufacturer: Hewlett-Packard
        Type: Desktop
        Lock: Not Present
        Version:    
        Serial Number: CNVA190LKX
        Asset Tag: <BAD INDEX>
        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 4, 42 bytes
Processor Information
        Socket Designation: CPU 1
        Type: Central Processor
        Family: Other
        Manufacturer: Intel            
        ID: C2 06 01 00 FF FB E9 BF
        Version: Intel(R) Atom(TM) CPU N280   @ 1.66GHz              
        Voltage: 1.2 V
        External Clock: 167 MHz
        Max Speed: 1666 MHz
        Current Speed: 1666 MHz
        Status: Populated, Enabled
        Upgrade: None
        L1 Cache Handle: 0x0005
        L2 Cache Handle: 0x0006
        L3 Cache Handle: Not Provided
        Serial Number: To Be Filled By O.E.M.
        Asset Tag: To Be Filled By O.E.M.
        Part Number: To Be Filled By O.E.M.
        Core Count: 1
        Core Enabled: 1
        Thread Count: 2
        Characteristics: None

Handle 0x0005, 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: 24 kB
        Maximum Size: 24 kB
        Supported SRAM Types:
                Burst
        Installed SRAM Type: Burst
        Speed: Unknown
        Error Correction Type: Unknown
        System Type: Data
        Associativity: Other

Handle 0x0006, 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: 512 kB
        Maximum Size: 512 kB
        Supported SRAM Types:
                Burst
        Installed SRAM Type: Burst
        Speed: Unknown
        Error Correction Type: Unknown
        System Type: Unified
        Associativity: 8-way Set-associative

Handle 0x0007, DMI type 5, 20 bytes
Memory Controller Information
        Error Detecting Method: None
        Error Correcting Capabilities:
                None
        Supported Interleave: One-way Interleave
        Current Interleave: One-way Interleave
        Maximum Memory Module Size: 4096 MB
        Maximum Total Memory Size: 8192 MB
        Supported Speeds:
                Other
        Supported Memory Types:
                SIMM
                SDRAM
        Memory Module Voltage: 3.3 V
        Associated Memory Slots: 2
                0x0008
                0x0009
        Enabled Error Correcting Capabilities:
                None

Handle 0x0008, DMI type 6, 12 bytes
Memory Module Information
        Socket Designation: DIMM0
        Bank Connections: 0 1
        Current Speed: Unknown
        Type: DIMM SDRAM
        Installed Size: 1024 MB (Single-bank Connection)
        Enabled Size: 1024 MB (Single-bank Connection)
        Error Status: OK

Handle 0x0009, DMI type 6, 12 bytes
Memory Module Information
        Socket Designation: DIMM1
        Bank Connections: 4 5
        Current Speed: Unknown
        Type: DIMM SDRAM
        Installed Size: Not Installed
        Enabled Size: Not Installed
        Error Status: OK

Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: COM1
        Internal Connector Type: 9 Pin Dual Inline (pin 10 cut)
        External Reference Designator: COM A
        External Connector Type: DB-9 male
        Port Type: Serial Port 16450 Compatible

Handle 0x000B, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: COM2
        Internal Connector Type: 9 Pin Dual Inline (pin 10 cut)
        External Reference Designator: COM B
        External Connector Type: DB-9 male
        Port Type: Serial Port 16450 Compatible

Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: LPT1
        Internal Connector Type: DB-25 female
        External Reference Designator: PARALLEL
        External Connector Type: DB-25 female
        Port Type: Parallel Port ECP/EPP

Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB0
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB1
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB2
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB3
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB4
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x0012, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB5
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB6
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: USB7
        External Connector Type: Access Bus (USB)
        Port Type: USB

Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: LAN
        External Connector Type: RJ-45
        Port Type: Network Port

Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: VGA
        External Connector Type: DB-15 female
        Port Type: Video Port

Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: Line out
        External Connector Type: Mini Jack (headphones)
        Port Type: Audio Port

Handle 0x0018, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: Microphone
        External Connector Type: Mini Jack (headphones)
        Port Type: Audio Port

Handle 0x0019, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: Keyboard
        External Connector Type: PS/2
        Port Type: Keyboard Port

Handle 0x001A, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: Null
        Internal Connector Type: None
        External Reference Designator: Mouse
        External Connector Type: PS/2
        Port Type: Mouse Port

Handle 0x001B, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: PRIMARY IDE
        Internal Connector Type: On Board IDE
        External Reference Designator: Not Specified
        External Connector Type: None
        Port Type: Other

Handle 0x001C, DMI type 8, 9 bytes
Port Connector Information
        Internal Reference Designator: SECONDARY IDE
        Internal Connector Type: On Board IDE
        External Reference Designator: Not Specified
        External Connector Type: None
        Port Type: Other

Handle 0x001D, DMI type 9, 17 bytes
System Slot Information
        Designation: PCI-X
        Type: 32-bit PCI-X
        Current Usage: Available
        Length: Long
        ID: 0
        Characteristics:
                5.0 V is provided
                PME signal is supported

Handle 0x001E, DMI type 11, 5 bytes
OEM Strings
        String 1: $OSTYPE11001
        String 2: $582271-00100WES

Handle 0x001F, DMI type 13, 22 bytes
BIOS Language Information
        Language Description Format: Long
        Installable Languages: 3
                en|US|iso8859-1
                es|ES|iso8859-1
                de|DE|iso8859-1
        Currently Installed Language: en|US|iso8859-1

Handle 0x0020, DMI type 16, 15 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: None
        Maximum Capacity: 8 GB
        Error Information Handle: Not Provided
        Number Of Devices: 2

Handle 0x0021, DMI type 19, 15 bytes
Memory Array Mapped Address
        Starting Address: 0x00000000000
        Ending Address: 0x0003FFFFFFF
        Range Size: 1 GB
        Physical Array Handle: 0x0020
        Partition Width: 4

Handle 0x0022, DMI type 17, 28 bytes
Memory Device
        Array Handle: 0x0020
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 1024 MB
        Form Factor: SODIMM
        Set: None
        Locator: DIMM0
        Bank Locator: BANK0
        Type: DDR2
        Type Detail: Synchronous
        Speed: Unknown
        Manufacturer: Samsung       
        Serial Number: 27E07E66
        Asset Tag: AssetTagNum0
        Part Number: M471B2873EH1-CH9  
        Rank: 14

Handle 0x0023, DMI type 20, 19 bytes
Memory Device Mapped Address
        Starting Address: 0x00000000000
        Ending Address: 0x0003FFFFFFF
        Range Size: 1 GB
        Physical Device Handle: 0x0022
        Memory Array Mapped Address Handle: 0x0021
        Partition Row Position: 1

Handle 0x0024, DMI type 17, 28 bytes
Memory Device
        Array Handle: 0x0020
        Error Information Handle: Not Provided
        Total Width: Unknown
        Data Width: 64 bits
        Size: No Module Installed
        Form Factor: SODIMM
        Set: None
        Locator: DIMM1
        Bank Locator: BANK1
        Type: Unknown
        Type Detail: Unknown
        Speed: Unknown
        Manufacturer: Manufacturer01
        Serial Number: SerNum01
        Asset Tag: AssetTagNum1
        Part Number: ModulePartNumber01
        Rank: Unknown

Handle 0x0025, DMI type 20, 19 bytes
Memory Device Mapped Address
        Starting Address: 0x00000000000
        Ending Address: 0x000000003FF
        Range Size: 1 kB
        Physical Device Handle: 0x0024
        Memory Array Mapped Address Handle: 0x0021
        Partition Row Position: 1

Handle 0x0026, DMI type 16, 15 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: Flash Memory
        Error Correction Type: None
        Maximum Capacity: 1 MB
        Error Information Handle: Not Provided
        Number Of Devices: 1

Handle 0x0027, DMI type 19, 15 bytes
Memory Array Mapped Address
        Starting Address: 0x000FFF00000
        Ending Address: 0x000FFFFFFFF
        Range Size: 1 MB
        Physical Array Handle: 0x0026
        Partition Width: 1

Handle 0x0028, DMI type 17, 28 bytes
Memory Device
        Array Handle: 0x0026
        Error Information Handle: Not Provided
        Total Width: 8 bits
        Data Width: 8 bits
        Size: 1024 kB
        Form Factor: Chip
        Set: None
        Locator: U24
        Bank Locator:  
        Type: Flash
        Type Detail: Non-Volatile
        Speed: 33 MHz
        Manufacturer: MXIC        
        Serial Number:  
        Asset Tag:  
        Part Number: 25L8005             
        Rank: Unknown

Handle 0x0029, DMI type 20, 19 bytes
Memory Device Mapped Address
        Starting Address: 0x000FFF00000
        Ending Address: 0x000FFFFFFFF
        Range Size: 1 MB
        Physical Device Handle: 0x0028
        Memory Array Mapped Address Handle: 0x0027
        Partition Row Position: 1

Handle 0x002A, DMI type 127, 4 bytes
End Of Table

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