Backlight control not working; but entries in /sys/class/backlight.. Vendor: American Megatrends Inc.. Version: 5.6.5

[Martin]

Hi there,

First of all sorry for my broken english.

Backlight control does not work on my LDLC Mercure MA1-4-HS5 Slim (Vendor: American Megatrends Inc. Version: 5.6.5) with Ubuntu 14.04.1 LTS (Release 14.04).
I tried to fix this with Xbacklight but it does not work either.

Here are a few information I can give, I hope it will be useful...

Thank you for your time !

[code]# dmidecode 2.12
SMBIOS 2.8 present.
40 structures occupying 1810 bytes.
Table at 0x000EBD30.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
 Vendor: American Megatrends Inc.
 Version: 5.6.5
 Release Date: 06/09/2014
 Address: 0xF0000
 Runtime Size: 64 kB
 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
  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)
  ACPI is supported
  USB legacy is supported
  BIOS boot specification is supported
  Targeted content distribution is supported
  UEFI is supported
 BIOS Revision: 5.6

Handle 0x0001, DMI type 1, 27 bytes
System Information
 Manufacturer: Notebook
 Product Name: W51XTU
 Version: Not Applicable
 Serial Number: Not Applicable
 UUID: 065BFA80-9E9E-0000-0000-000000000000
 Wake-up Type: Power Switch
 SKU Number: To be filled by O.E.M.
 Family: To be filled by O.E.M.

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
 Manufacturer: Notebook
 Product Name: W51XTU
 Version: V1.0
 Serial Number: Not Applicable
 Asset Tag: Tag 12345
 Features:
  Board is a hosting board
  Board is replaceable
 Location In Chassis: To be filled by O.E.M.
 Chassis Handle: 0x0003
 Type: Motherboard
 Contained Object Handles: 0

Handle 0x0003, DMI type 3, 25 bytes
Chassis Information
 Manufacturer: To Be Filled By O.E.M.
 Type: Desktop
 Lock: Not Present
 Version: To Be Filled By O.E.M.
 Serial Number: To Be Filled By O.E.M.
 Asset Tag: To Be Filled By O.E.M.
 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: 1
  <OUT OF SPEC> (0)
 SKU Number: To be filled by O.E.M.

Handle 0x0008, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J1A1
 Internal Connector Type: None
 External Reference Designator: PS2Mouse
 External Connector Type: PS/2
 Port Type: Mouse Port

Handle 0x0009, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J1A1
 Internal Connector Type: None
 External Reference Designator: Keyboard
 External Connector Type: PS/2
 Port Type: Keyboard Port

Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J2A1
 Internal Connector Type: None
 External Reference Designator: TV Out
 External Connector Type: Mini Centronics Type-14
 Port Type: Other

Handle 0x000B, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J2A2A
 Internal Connector Type: None
 External Reference Designator: COM A
 External Connector Type: DB-9 male
 Port Type: Serial Port 16550A Compatible

Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J2A2B
 Internal Connector Type: None
 External Reference Designator: Video
 External Connector Type: DB-15 female
 Port Type: Video Port

Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J3A1
 Internal Connector Type: None
 External Reference Designator: USB1
 External Connector Type: Access Bus (USB)
 Port Type: USB

Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J3A1
 Internal Connector Type: None
 External Reference Designator: USB2
 External Connector Type: Access Bus (USB)
 Port Type: USB

Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J3A1
 Internal Connector Type: None
 External Reference Designator: USB3
 External Connector Type: Access Bus (USB)
 Port Type: USB

Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J5A1
 Internal Connector Type: None
 External Reference Designator: LAN
 External Connector Type: RJ-45
 Port Type: Network Port

Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J5A1
 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: J9A1 - TPM HDR
 Internal Connector Type: Other
 External Reference Designator: Not Specified
 External Connector Type: None
 Port Type: Other

Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J9C1 - PCIE DOCKING CONN
 Internal Connector Type: Other
 External Reference Designator: Not Specified
 External Connector Type: None
 Port Type: Other

Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J2B3 - CPU FAN
 Internal Connector Type: Other
 External Reference Designator: Not Specified
 External Connector Type: None
 Port Type: Other

Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J6C2 - EXT HDMI
 Internal Connector Type: Other
 External Reference Designator: Not Specified
 External Connector Type: None
 Port Type: Other

Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J3C1 - GMCH FAN
 Internal Connector Type: Other
 External Reference Designator: Not Specified
 External Connector Type: None
 Port Type: Other

Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J1D1 - ITP
 Internal Connector Type: Other
 External Reference Designator: Not Specified
 External Connector Type: None
 Port Type: Other

Handle 0x0018, DMI type 8, 9 bytes
Port Connector Information
 Internal Reference Designator: J9E2 - MDC INTPSR
 Internal Connector Type: Other
 External Reference Designator: Not Specified
 External Connector Type: None
 Port Type: Other

Handle 0x0019, DMI type 9, 17 bytes
System Slot Information
 Designation: J6B2
 Type: x16 PCI Express
 Current Usage: In Use
 Length: Long
 ID: 0
 Characteristics:
  3.3 V is provided
  Opening is shared
  PME signal is supported
 Bus Address: 0000:00:01.0

Handle 0x001A, DMI type 9, 17 bytes
System Slot Information
 Designation: J6B1
 Type: x1 PCI Express
 Current Usage: In Use
 Length: Short
 ID: 1
 Characteristics:
  3.3 V is provided
  Opening is shared
  PME signal is supported
 Bus Address: 0000:00:1c.3

Handle 0x001B, DMI type 10, 10 bytes
On Board Device 1 Information
 Type: Video
 Status: Enabled
 Description: To Be Filled By O.E.M.
On Board Device 2 Information
 Type: Ethernet
 Status: Enabled
 Description: To Be Filled By O.E.M.
On Board Device 3 Information
 Type: Other
 Status: Enabled
 Description: Onboard 1394

Handle 0x001C, DMI type 11, 5 bytes
OEM Strings
 String 1: 1558
 String 2: OEM String
 String 3: To Be Filled By O.E.M.
 String 4: To Be Filled By O.E.M.
 String 5: BIOS:1.03.04

Handle 0x001D, DMI type 16, 23 bytes
Physical Memory Array
 Location: System Board Or Motherboard
 Use: System Memory
 Error Correction Type: None
 Maximum Capacity: 64 GB
 Error Information Handle: Not Provided
 Number Of Devices: 2

Handle 0x001E, DMI type 19, 31 bytes
Memory Array Mapped Address
 Starting Address: 0x00000000000
 Ending Address: 0x000FFFFFFFF
 Range Size: 4 GB
 Physical Array Handle: 0x001D
 Partition Width: 2

Handle 0x001F, DMI type 17, 40 bytes
Memory Device
 Array Handle: 0x001D
 Error Information Handle: Not Provided
 Total Width: 64 bits
 Data Width: 64 bits
 Size: 4096 MB
 Form Factor: DIMM
 Set: None
 Locator: A1_DIMM0
 Bank Locator: A1_BANK0
 Type: DDR3
 Type Detail: Unknown
 Speed: 1333 MHz
 Manufacturer: Undefined
 Serial Number: 27020000
 Asset Tag: A1_AssetTagNum0
 Part Number: CT51264BF160BJ.C8F
 Rank: 1
 Configured Clock Speed: 1333 MHz
 Minimum voltage: 13.080 V
 Maximum voltage: -18.348 V
 Configured voltage: Unknown

Handle 0x0020, DMI type 20, 35 bytes
Memory Device Mapped Address
 Starting Address: 0x00000000000
 Ending Address: 0x000FFFFFFFF
 Range Size: 4 GB
 Physical Device Handle: 0x001F
 Memory Array Mapped Address Handle: 0x001E
 Partition Row Position: Unknown
 Interleave Position: 1
 Interleaved Data Depth: 2

Handle 0x0021, DMI type 17, 40 bytes
Memory Device
 Array Handle: 0x001D
 Error Information Handle: Not Provided
 Total Width: Unknown
 Data Width: 64 bits
 Size: No Module Installed
 Form Factor: DIMM
 Set: None
 Locator: A1_DIMM1
 Bank Locator: A1_BANK1
 Type: Unknown
 Type Detail: Unknown
 Speed: Unknown
 Manufacturer: A1_Manufacturer1
 Serial Number: A1_SerNum1
 Asset Tag: A1_AssetTagNum1
 Part Number: Array1_PartNumber1
 Rank: Unknown
 Configured Clock Speed: Unknown
 Minimum voltage: -17.967 V
 Maximum voltage: Unknown
 Configured voltage: Unknown

Handle 0x0022, DMI type 126, 35 bytes
Inactive

Handle 0x0023, DMI type 32, 20 bytes
System Boot Information
 Status: No errors detected

Handle 0x0024, DMI type 41, 11 bytes
Onboard Device
 Reference Designation: Onboard IGD
 Type: Video
 Status: Enabled
 Type Instance: 1
 Bus Address: 0000:00:02.0

Handle 0x0025, DMI type 41, 11 bytes
Onboard Device
 Reference Designation: Onboard LAN
 Type: Ethernet
 Status: Enabled
 Type Instance: 1
 Bus Address: 0000:00:19.0

Handle 0x0026, DMI type 7, 19 bytes
Cache Information
 Socket Designation: CPU Internal L1
 Configuration: Enabled, Not Socketed, Level 1
 Operational Mode: Write Back
 Location: Internal
 Installed Size: 112 kB
 Maximum Size: 112 kB
 Supported SRAM Types:
  Unknown
 Installed SRAM Type: Unknown
 Speed: Unknown
 Error Correction Type: Single-bit ECC
 System Type: Other
 Associativity: Other

Handle 0x0027, DMI type 7, 19 bytes
Cache Information
 Socket Designation: CPU Internal L2
 Configuration: Enabled, Not Socketed, Level 2
 Operational Mode: Write Back
 Location: Internal
 Installed Size: 1024 kB
 Maximum Size: 1024 kB
 Supported SRAM Types:
  Unknown
 Installed SRAM Type: Unknown
 Speed: Unknown
 Error Correction Type: Single-bit ECC
 System Type: Unified
 Associativity: 16-way Set-associative

Handle 0x0028, DMI type 4, 42 bytes
Processor Information
 Socket Designation: SOCKET 0
 Type: Central Processor
 Family: Celeron
 Manufacturer: Intel
 ID: 78 06 03 00 FF FB EB BF
 Signature: Type 0, Family 6, Model 55, Stepping 8
 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 (FXSAVE and FXSTOR instructions supported)
  SSE (Streaming SIMD extensions)
  SSE2 (Streaming SIMD extensions 2)
  SS (Self-snoop)
  HTT (Multi-threading)
  TM (Thermal monitor supported)
  PBE (Pending break enabled)
 Version: Intel(R) Celeron(R) CPU N2830 @ 2.16GHz
 Voltage: 1.2 V
 External Clock: 83 MHz
 Max Speed: 2400 MHz
 Current Speed: 2160 MHz
 Status: Populated, Enabled
 Upgrade: Socket BGA1155
 L1 Cache Handle: 0x0026
 L2 Cache Handle: 0x0027
 L3 Cache Handle: Not Provided
 Serial Number: Not Specified
 Asset Tag: Fill By OEM
 Part Number: Fill By OEM
 Core Count: 2
 Core Enabled: 2
 Thread Count: 2
 Characteristics:
  64-bit capable

Handle 0x0029, DMI type 136, 6 bytes
OEM-specific Type
 Header and Data:
  88 06 29 00 00 00

Handle 0x002A, DMI type 13, 22 bytes
BIOS Language Information
 Language Description Format: Long
 Installable Languages: 1
  en|US|iso8859-1
 Currently Installed Language: en|US|iso8859-1

Handle 0x002B, DMI type 127, 4 bytes
End Of Table
[/code]

[code]martin@martin-W51XTU:~$ cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"[/code]

[code]martin@martin-W51XTU:~$ ls /sys/class/backlight
acpi_video0 intel_backlight [/code]

[code]martin@martin-W51XTU:~$ grep -r . /proc/acpi
/proc/acpi/battery/BAT0/alarm:alarm: unsupported
/proc/acpi/battery/BAT0/state:present: yes
/proc/acpi/battery/BAT0/state:capacity state: ok
/proc/acpi/battery/BAT0/state:charging state: discharging
/proc/acpi/battery/BAT0/state:present rate: unknown
/proc/acpi/battery/BAT0/state:remaining capacity: 2316 mAh
/proc/acpi/battery/BAT0/state:present voltage: 12150 mV
/proc/acpi/battery/BAT0/info:present: yes
/proc/acpi/battery/BAT0/info:design capacity: 2800 mAh
/proc/acpi/battery/BAT0/info:last full capacity: 2644 mAh
/proc/acpi/battery/BAT0/info:battery technology: rechargeable
/proc/acpi/battery/BAT0/info:design voltage: 11100 mV
/proc/acpi/battery/BAT0/info:design capacity warning: 280 mAh
/proc/acpi/battery/BAT0/info:design capacity low: 0 mAh
/proc/acpi/battery/BAT0/info:cycle count: 0
/proc/acpi/battery/BAT0/info:capacity granularity 1: 64 mAh
/proc/acpi/battery/BAT0/info:capacity granularity 2: 64 mAh
/proc/acpi/battery/BAT0/info:model number: BAT
/proc/acpi/battery/BAT0/info:serial number: 0001
/proc/acpi/battery/BAT0/info:battery type: LION
/proc/acpi/battery/BAT0/info:OEM info: Notebook
/proc/acpi/button/lid/LID0/state:state: open
/proc/acpi/wakeup:Device S-state Status Sysfs node
/proc/acpi/wakeup:XHC1 S4 *enabled pci:0000:00:14.0
/proc/acpi/wakeup:PXSX S4 *disabled pci:0000:01:00.0
/proc/acpi/wakeup:RLAN S4 *disabled pci:0000:01:00.2
/proc/acpi/wakeup:PXSX S4 *disabled pci:0000:02:00.0
/proc/acpi/wakeup:PXSX S4 *disabled
/proc/acpi/wakeup:PXSX S4 *disabled
/proc/acpi/wakeup:PWRB S3 *enabled
/proc/acpi/wakeup:SLPB S3 *enabled
/proc/acpi/wakeup:LID0 S3 *enabled [/code]

[code]martin@martin-W51XTU:~$ sudo acpidump -o
Option requires an argument: -o
Usage: acpidump [options]
Options:
  -b Dump tables to binary files
  -c Dump customized tables
  -h -? This help message
  -o <File> Redirect output to file
  -r <Address> Dump tables from specified RSDP
  -s Print table summaries only
  -v Display version information
  -z Verbose mode

Table Options:
  -a <Address> Get table via a physical address
  -f <BinaryFile> Get table via a binary file
  -n <Signature> Get table via a name/signature

Invocation without parameters dumps all available tables
Multiple mixed instances of -a, -f, and -n are supported[/code]

[code]martin@martin-W51XTU:~$ acpixtract acpidump.txt

Intel ACPI Component Architecture
ACPI Binary Table Extraction Utility version 20140214-64 [Mar 29 2014]
Copyright (c) 2000 - 2014 Intel Corporation

Could not open file acpidump.txt[/code]

[code]martin@martin-W51XTU:~$ fwts
Running 42 tests, results appended to results.log
Test: Gather kernel system information.
  Gather kernel signature. 1 info only
  Gather kernel system information. 1 info only
  Gather kernel boot command line. 1 info only
  Gather ACPI driver version. 1 info only
Test: Gather BIOS DMI information.
  Gather BIOS DMI information 1 info only
Test: Scan kernel log for Oopses.
  Kernel log oops check. 2 passed
Test: Scan kernel log for errors and warnings.
  Kernel log error check. 2 failed
Test: MTRR tests.
 Test aborted.
Test: General ACPI information test.
  Determine Kernel ACPI version. 1 info only
  Determine machine's ACPI version.
  Determine AML compiler. 1 info only
Test: UEFI secure boot test.
 Test aborted.
Test: UEFI Compatibility Support Module test.
 Test aborted.
Test: Test firmware has set PCI Express MaxReadReq to a higher value on n..
 Test aborted.
Test: Test PCI host bridge configuration using _CRS.
 Test aborted.
Test: PCIe ASPM test.
 Test aborted.
Test: HPET configuration tests.
 Test aborted.
Test: DMI/SMBIOS table tests.
 Test aborted.
Test: Test if system is using latest microcode.
 Test aborted.
Test: MSR register tests.
 Test aborted.
Test: Test if CPU NX is disabled by the BIOS.
 Test aborted.
Test: CPU frequency scaling tests.
 Test aborted.
Test: Test max CPU frequencies against max scaling frequency.
  Maximum CPU frequency test. 1 passed
Test: CPU Virtualisation Configuration test.
 Test aborted.
Test: BIOS Support Installation structure test.
 Test aborted.
Test: PCI IRQ Routing Table test.
 Test aborted.
Test: OS/2 memory hole test.
  Test the OS/2 15Mb memory hole is absent. 1 passed
Test: MultiProcessor Tables tests.
 Test aborted.
Test: HDA Audio Pin Configuration test.
  HDA Audio Pin Configuration test. 2 passed
Test: Test EBDA region is mapped and reserved in memory map table.
 Test aborted.
Test: BIOS32 Service Directory test.
 Test aborted.
Test: APIC edge/level test.
  Legacy and PCI Interrupt Edge/Level trigger tests. 1 failed
Test: Extract and analyse Windows Management Instrumentation (WMI).
 Test aborted..
Test: ACPI Wakealarm tests.
 Test aborted.
Test: Re-assemble DSDT and find syntax errors and warnings.
  Disassemble and reassemble DSDT
  Disassemble and reassemble SSDT
Test: Processor Clocking Control (PCC) test.
 Test aborted..
Test: Disassemble DSDT to check for _OSI("Linux").
  Disassemble DSDT to check for _OSI("Linux"). 1 aborted
Test: ACPI DSDT Method Semantic tests.
 Test aborted..
Test: MCFG PCI Express* memory mapped config space test.
 Test aborted.
Test: Simple fan tests.
  Test fan status. 3 passed
  Load system, check CPU fan status.
Test: FADT SCI_EN enabled tests.
 Test aborted.
Test: DMA Remapping (VT-d) test.
  DMA Remapping test. 1 skipped
Test: Processor C state support test.
martin@martin-W51XTU:~$ (CPU 2 of 2) : 89.3% [/code]

[code]martin@martin-W51XTU:~$ sudo fwts method
Running 1 tests, results appended to results.log
Test: ACPI DSDT Method Semantic tests.
  Test Method Names. 1 passed
  Test _AEI. 1 passed
  Test _PIC (Inform AML of Interrupt Model). 3 passed
  Test _CID (Compatible ID). 7 passed
  Test _DDN (DOS Device Name). 7 passed
  Test _HID (Hardware ID). 33 passed
  Test _HRV (Hardware Revision Number). 1 skipped
  Test _PLD (Physical Device Location). 18 passed
  Test _SUB (Subsystem ID). 2 passed
  Test _SUN (Slot User Number). 1 skipped
  Test _STR (String). 2 failed
  Test _UID (Unique ID). 23 passed
  Test _CDM (Clock Domain). 1 skipped
  Test _CRS (Current Resource Settings). 27 passed
  Test _DIS (Disable). 13 passed
  Test _DMA (Direct Memory Access). 1 skipped
  Test _FIX (Fixed Register Resource Provider). 1 skipped
  Test _GSB (Global System Interrupt Base). 1 skipped
  Test _HPP (Hot Plug Parameters). 1 skipped
  Test _PRS (Possible Resource Settings). 12 passed
  Test _PXM (Proximity). 1 skipped
  Test _EDL (Eject Device List). 1 skipped
  Test _EJD (Ejection Dependent Device). 1 skipped
  Test _EJ0 (Eject). 1 skipped
  Test _EJ1 (Eject). 1 skipped
  Test _EJ2 (Eject). 1 skipped
  Test _EJ3 (Eject). 1 skipped
  Test _EJ4 (Eject). 1 skipped
  Test _LCK (Lock). 1 skipped
  Test _RMV (Remove). 5 passed
  Test _STA (Status). 32 passed
  Test _BDN (BIOS Dock Name). 1 skipped
  Test _BBN (Base Bus Number). 1 passed
  Test _DCK (Dock). 1 skipped
  Test _INI (Initialize). 4 passed
  Test _SEG (Segment). 1 skipped
  Test _OFF (Set resource off). 3 passed
  Test _ON (Set resource on). 1 skipped
  Test _DSW (Device Sleep Wake). 6 passed
  Test _IRC (In Rush Current). 1 skipped
  Test _PRE (Power Resources for Enumeration). 1 skipped
  Test _PR0 (Power Resources for D0). 2 passed
  Test _PR1 (Power Resources for D1). 1 skipped
  Test _PR2 (Power Resources for D2). 1 skipped
  Test _PR3 (Power Resources for D3). 2 passed
  Test _PS0 (Power State 0). 10 passed
  Test _PS1 (Power State 1). 1 skipped
  Test _PS2 (Power State 2). 1 skipped
  Test _PS3 (Power State 3). 10 passed
  Test _PSC (Power State Current). 1 skipped
  Test _PSE (Power State for Enumeration). 1 skipped
  Test _PSW (Power State Wake). 7 passed
  Test _S1D (S1 Device State). 1 skipped
  Test _S2D (S2 Device State). 1 skipped
  Test _S3D (S3 Device State). 8 passed
  Test _S4D (S4 Device State). 8 passed
  Test _S0W (S0 Device Wake State). 1 skipped
  Test _S1W (S1 Device Wake State). 1 skipped
  Test _S2W (S2 Device Wake State). 1 skipped
  Test _S3W (S3 Device Wake State). 7 passed
  Test _S4W (S4 Device Wake State). 7 passed
  Test _S0_ (S0 System State). 1 passed
  Test _S1_ (S1 System State). 1 skipped
  Test _S2_ (S2 System State). 1 skipped
  Test _S3_ (S3 System State). 1 passed
  Test _S4_ (S4 System State). 1 passed
  Test _S5_ (S5 System State). 1 passed
  Test _SWS (System Wake Source). 1 skipped
  Test _PSS (Performance Supported States). 1 skipped
  Test _CPC (Continuous Performance Control). 1 skipped
  Test _CSD (C State Dependencies). 1 skipped
  Test _CST (C States). 1 skipped
  Test _PCT (Performance Control). 1 skipped
  Test _PDL (P-State Depth Limit). 1 skipped
  Test _PPC (Performance Present Capabilities). 1 skipped
  Test _PPE (Polling for Platform Error). 1 skipped
  Test _TDL (T-State Depth Limit). 1 passed
  Test _TPC (Throttling Present Capabilities). 4 passed
  Test _TSD (Throttling State Dependencies). 4 passed
  Test _TSS (Throttling Supported States). 4 passed
  Test _MSG (Message). 1 skipped
  Test _ALC (Ambient Light Colour Chromaticity). 1 skipped
  Test _ALI (Ambient Light Illuminance). 1 skipped
  Test _ALT (Ambient Light Temperature). 1 skipped
  Test _ALP (Ambient Light Polling). 1 skipped
  Test _LID (Lid Status). 1 passed
  Test _UPD (User Presence Detect). 1 skipped
  Test _UPP (User Presence Polling). 1 skipped
  Test _GCP (Get Capabilities). 1 skipped
  Test _GRT (Get Real Time). 1 skipped
  Test _GWS (Get Wake Status). 1 skipped
  Test _STP (Set Expired Timer Wake Policy). 1 skipped
  Test _STV (Set Timer Value). 1 skipped
  Test _TIP (Expired Timer Wake Policy). 1 skipped
  Test _TIV (Timer Values). 1 skipped
  Test _SBS (Smart Battery Subsystem). 1 skipped
  Test _BCT (Battery Charge Time). 1 skipped
  Test _BIF (Battery Information). 1 passed
  Test _BIX (Battery Information Extended). 1 skipped
  Test _BMA (Battery Measurement Averaging). 1 skipped
  Test _BMC (Battery Maintenance Control). 1 skipped
  Test _BMD (Battery Maintenance Data). 1 skipped
  Test _BMS (Battery Measurement Sampling Time). 1 skipped
  Test _BST (Battery Status). 1 passed
  Test _BTP (Battery Trip Point). 1 skipped
  Test _BTM (Battery Time). 1 skipped
  Test _PCL (Power Consumer List).
  Test _PIF (Power Source Information). 1 skipped
  Test _PSR (Power Source). 1 passed
  Test _GAI (Get Averaging Level). 1 skipped
  Test _PMM (Power Meter Measurement). 1 skipped
  Test _FIF (Fan Information). 1 skipped
  Test _FSL (Fan Set Level). 1 skipped
  Test _FST (Fan Status). 1 skipped
  Test _ACx (Active Cooling). 10 skipped
  Test _CRT (Critical Trip Point). 1 passed
  Test _DTI (Device Temperature Indication). 1 skipped
  Test _HOT (Hot Temperature). 1 skipped
  Test _NTT (Notification Temp Threshold). 1 skipped
  Test _PSV (Passive Temp). 1 skipped
  Test _RTV (Relative Temp Values). 1 skipped
  Test _SCP (Set Cooling Policy). 1 skipped
  Test _TC1 (Thermal Constant 1). 1 skipped
  Test _TC2 (Thermal Constant 2). 1 skipped
  Test _TMP (Thermal Zone Current Temp). 1 passed
  Test _TPT (Trip Point Temperature). 1 skipped
  Test _TSP (Thermal Sampling Period). 1 skipped
  Test _TST (Temperature Sensor Threshold). 1 skipped
  Test _TZP (Thermal Zone Polling). 1 skipped
  Test _PTS (Prepare to Sleep). 5 passed
  Test _TTS (Transition to State). 1 skipped
  Test _S0 (System S0 State). 1 skipped
  Test _S1 (System S1 State). 1 skipped
  Test _S2 (System S2 State). 1 skipped
  Test _S3 (System S3 State). 1 skipped
  Test _S4 (System S4 State). 1 skipped
  Test _S5 (System S5 State). 1 skipped
  Test _WAK (System Wake). 5 passed
  Test _ADR (Return Unique ID for Device). 75 passed
  Test _BCL (Query List of Brightness Control Levels S.. 1 passed
  Test _BCM (Set Brightness Level). 1 passed
  Test _BQC (Brightness Query Current Level). 1 passed
  Test _DCS (Return the Status of Output Device). 9 passed
  Test _DDC (Return the EDID for this Device). 1 skipped
  Test _DSS (Device Set State). 9 passed
  Test _DGS (Query Graphics State). 9 passed
  Test _DOD (Enumerate All Devices Attached to Display.. 1 passed
  Test _DOS (Enable/Disable Output Switching). 1 passed
  Test _GPD (Get POST Device). 1 skipped
  Test _ROM (Get ROM Data). 1 skipped
  Test _SPD (Set POST Device). 1 skipped
  Test _VPO (Video POST Options). 1 skipped
  Test _CBA (Configuration Base Address). 1 skipped
  Test _IFT (IPMI Interface Type). 1 skipped
  Test _SRV (IPMI Interface Revision). 1 skipped [/code]

[code]martin@martin-W51XTU:~$ dmesg | grep 'ACPI: Video'
[ 8.092146] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)[/code]

[code]martin@martin-W51XTU:~$ cat /proc/version
Linux version 3.13.0-32-generic (buildd@kissel) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014[/code]

Thanks a lot in advance !

Martin

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-32-generic 3.13.0-32.57 [modified: boot/vmlinuz-3.13.0-32-generic]
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: martin 1948 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Nov 16 10:19:50 2014
HibernationDevice: RESUME=UUID=0e708f03-a742-4017-9e19-a7810933f42c
InstallationDate: Installed on 2014-11-15 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 04f2:b43b Chicony Electronics Co., Ltd
 Bus 001 Device 003: ID 058f:6254 Alcor Micro Corp. USB Hub
 Bus 001 Device 002: ID 8087:07dc Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Notebook W51XTU
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=108b5bfe-7cb6-4d1d-a4a7-deb2bc697f72 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-32-generic N/A
 linux-backports-modules-3.13.0-32-generic N/A
 linux-firmware 1.127.5
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/09/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: W51XTU
dmi.board.vendor: Notebook
dmi.board.version: V1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5.6.5:bd06/09/2014:svnNotebook:pnW51XTU:pvrNotApplicable:rvnNotebook:rnW51XTU:rvrV1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: W51XTU
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.18 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-rc5-vivid/

[Martin (gillardmail)]

I'm sorry but I'm not sure I fully understand the instructions... I'm
really bad at computing :(

So just to make sure... I have to download this one:

linux-headers-3.18.0-031800rc5-generic_3.18.0-031800rc5.201411162035_amd64.deb
<http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-rc5-vivid/linux-headers-3.18.0-031800rc5-generic_3.18.0-031800rc5.201411162035_amd64.deb>
then install it with " sudo dpkg -i "

and that's it ?

Or do I have to install
linux-image-3.18.0-031800rc5-generic_3.18.0-031800rc5.201411162035_amd64.deb
<http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-rc5-vivid/linux-image-3.18.0-031800rc5-generic_3.18.0-031800rc5.201411162035_amd64.deb>
as well ...?

I managed to change the brightness thanks to Xcaliber, but I'd like to fix
this problem anyway...

Thanks in advance,

Martin

On Mon, Nov 17, 2014 at 7:08 PM, Joseph Salisbury <
<email address hidden>> wrote:

> Would it be possible for you to test the latest upstream kernel? Refer
> to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
> v3.18 kernel[0].
>
> If this bug is fixed in the mainline kernel, please add the following
> tag 'kernel-fixed-upstream'.
>
> If the mainline kernel does not fix this bug, please add the tag:
> 'kernel-bug-exists-upstream'.
>
> If you are unable to test the mainline kernel, for example it will not
> boot, please add the tag: 'kernel-unable-to-test-upstream'.
> Once testing of the upstream kernel is complete, please mark this bug as
> "Confirmed".
>
>
> Thanks in advance.
>
> [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-rc5-vivid/
>
>
> ** Changed in: linux (Ubuntu)
> Importance: Undecided => Medium
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1393160
>
> Title:
> Backlight control not working; but entries in /sys/class/backlight..
> Vendor: American Megatrends Inc.. Version: 5.6.5
>
> Status in “linux” package in Ubuntu:
> Incomplete
>
> Bug description:
> Hi there,
>
> First of all sorry for my broken english.
>
> Backlight control does not work on my LDLC Mercure MA1-4-HS5 Slim
> (Vendor: American Megatrends Inc. Version: 5.6.5) with Ubuntu 14.04.1 LTS
> (Release 14.04).
> I tried to fix this with Xbacklight but it does not work either.
>
> Here are a few information I can give, I hope it will be useful...
>
> Thank you for your time !
>
> [code]# dmidecode 2.12
> SMBIOS 2.8 present.
> 40 structures occupying 1810 bytes.
> Table at 0x000EBD30.
>
> Handle 0x0000, DMI type 0, 24 bytes
> BIOS Information
> Vendor: American Megatrends Inc.
> Version: 5.6.5
> Release Date: 06/09/2014
> Address: 0xF0000
> Runtime Size: 64 kB
> 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
> ...

[voirev (rewvoid)]

ubuntu 14.10 fixed the problem

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]