Re: Linux 3.11-rc2 [backlight] [ASUS N56VZ]

[Rafael J. Wysocki]

On Wednesday, July 24, 2013 10:55:32 PM Igor Gnatenko wrote:
> Rafael, I think we shall create bug report with this problems. Doesn't
> works sysfs Intel backlight.

Yes, it looks like that is the source of the problems that people have after
the change in question.

Thanks,
Rafael


> On Jul 24, 2013 10:49 PM, "* SAMÃ *" <miaousami@xxxxxxxxxxx> wrote:
> 
> > Hi,
> >
> > it seems a lot of people are complaining about the backlight pull request
> > of RC2.
> >
> > This is to tell you how it saved my life:
> > - Changing brightness from Fn keys does work
> > - Writing to /sys/class/backlight/intel_**backlight/brightness does work
> > - Changing brightness from gnome brightness settings does work
> > --> It seems everything is now working (it wasn't before).
> > --> I appreciate your patch and I am going to be sad if you revert it :-)
> >
> >
> > My laptop : Asus N56VZ
> > My /proc/cpuinfo: https://bugs.launchpad.net/**ubuntu/+source/linux/+bug/*
> > *1030556/+attachment/3241093/+**files/ProcCpuinfo.txt<https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1030556/+attachment/3241093/+files/ProcCpuinfo.txt>
> > My dmidecode is below.
> >
> > Changing brightness from Fn keys didn't work on 3.9 and 3.10 kernels.
> > I a not sure for previous versions though a patch was made for 3.2 in
> > ubuntu. See details here:
> > https://bugs.launchpad.net/**ubuntu/+source/linux/+bug/**1030556<https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1030556>
> >
> > There are a lot of bugs opened for this:
> > https://bugs.launchpad.net/**ubuntu/+source/linux/+bug/**1173107<https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173107>
> > http://askubuntu.com/**questions/156708/how-to-get-**
> > multimedia-keys-working-at-my-**asus-n56vz-ubuntu-12-04-**notebook<http://askubuntu.com/questions/156708/how-to-get-multimedia-keys-working-at-my-asus-n56vz-ubuntu-12-04-notebook>
> > https://bugs.archlinux.org/**task/35320<https://bugs.archlinux.org/task/35320>
> >
> > Regards
> > Sam
> >
> >
> > # dmidecode 2.11
> > # SMBIOS entry point at 0x000f04c0
> > SMBIOS 2.7 present.
> > 23 structures occupying 1708 bytes.
> > Table at 0x000EBA70.
> >
> > Handle 0x0000, DMI type 0, 24 bytes
> > BIOS Information
> >     Vendor: American Megatrends Inc.
> >     Version: N56VZ.215
> >     Release Date: 11/02/2012
> >     Address: 0xF0000
> >     Runtime Size: 64 kB
> >     ROM Size: 6144 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
> >         Smart battery is supported
> >         BIOS boot specification is supported
> >         Targeted content distribution is supported
> >         UEFI is supported
> >     BIOS Revision: 4.6
> >
> > Handle 0x0001, DMI type 1, 27 bytes
> > System Information
> >     Manufacturer: ASUSTeK COMPUTER INC.
> >     Product Name: N56VZ
> >     Version: 1.0
> >     Serial Number: C6N0AS306834244
> >     UUID: 10017880-B5B7-81E1-3FDF-**3085A9061B75
> >     Wake-up Type: Power Switch
> >     SKU Number: ASUS-NotebookSKU
> >     Family: N
> >
> > Handle 0x0002, DMI type 2, 15 bytes
> > Base Board Information
> >     Manufacturer: ASUSTeK COMPUTER INC.
> >     Product Name: N56VZ
> >     Version: 1.0
> >     Serial Number: BSN12345678901234567
> >     Asset Tag: ATN12345678901234567
> >     Features:
> >         Board is a hosting board
> >         Board is replaceable
> >     Location In Chassis: MIDDLE
> >     Chassis Handle: 0x0003
> >     Type: Motherboard
> >     Contained Object Handles: 0
> >
> > Handle 0x0003, DMI type 3, 22 bytes
> > Chassis Information
> >     Manufacturer: ASUSTeK COMPUTER INC.
> >     Type: Notebook
> >     Lock: Not Present
> >     Version: 1.0
> >     Serial Number: C6N0AS306834244
> >     Asset Tag: No 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
> >     SKU Number: To be filled by O.E.M.
> >
> > Handle 0x0004, DMI type 10, 26 bytes
> > On Board Device 1 Information
> >     Type: Video
> >     Status: Enabled
> >     Description:  VGA
> > On Board Device 2 Information
> >     Type: Ethernet
> >     Status: Enabled
> >     Description:  GLAN
> > On Board Device 3 Information
> >     Type: Ethernet
> >     Status: Enabled
> >     Description:  WLAN
> > On Board Device 4 Information
> >     Type: Sound
> >     Status: Enabled
> >     Description:  Audio CODEC
> > On Board Device 5 Information
> >     Type: SATA Controller
> >     Status: Enabled
> >     Description:  SATA Controller
> > On Board Device 6 Information
> >     Type: Other
> >     Status: Enabled
> >     Description:  USB 2.0 Controller
> > On Board Device 7 Information
> >     Type: Other
> >     Status: Enabled
> >     Description:  USB 3.0 Controller
> > On Board Device 8 Information
> >     Type: Other
> >     Status: Enabled
> >     Description:  SMBus Controller
> > On Board Device 9 Information
> >     Type: Other
> >     Status: Enabled
> >     Description:  Card Reader
> > On Board Device 10 Information
> >     Type: Other
> >     Status: Enabled
> >     Description:  Cmos Camera
> > On Board Device 11 Information
> >     Type: Other
> >     Status: Enabled
> >     Description:  Bluetooth
> >
> > Handle 0x0005, DMI type 11, 5 bytes
> > OEM Strings
> >     String 1: 6kfb9jsNVeN50
> >     String 2: I76yifUckyZ2n
> >     String 3: W0-kvTpaXZUpn
> >     String 4: 90N9IC442L1875VL355Y
> >     String 5:
> >     String 6:
> >     String 7:
> >     String 8:
> >     String 9:
> >     String 10:
> >
> > Handle 0x0006, DMI type 12, 5 bytes
> > System Configuration Options
> >     Option 1: DSN:            W54S4QJE
> >     Option 2: DSN:57B1609A5803
> >     Option 3: DSN:3085A9061B75
> >     Option 4: SMI:00B2CA
> >
> > Handle 0x0007, DMI type 32, 20 bytes
> > System Boot Information
> >     Status: No errors detected
> >
> > Handle 0x0008, DMI type 7, 19 bytes
> > Cache Information
> >     Socket Designation: CPU Internal L2
> >     Configuration: Enabled, Not Socketed, Level 2
> >     Operational Mode: Write Through
> >     Location: Internal
> >     Installed Size: 1024 kB
> >     Maximum Size: 1024 kB
> >     Supported SRAM Types:
> >         Unknown
> >     Installed SRAM Type: Unknown
> >     Speed: Unknown
> >     Error Correction Type: Multi-bit ECC
> >     System Type: Unified
> >     Associativity: 8-way Set-associative
> >
> > Handle 0x0009, DMI type 7, 19 bytes
> > Cache Information
> >     Socket Designation: CPU Internal L1
> >     Configuration: Enabled, Not Socketed, Level 1
> >     Operational Mode: Write Through
> >     Location: Internal
> >     Installed Size: 256 kB
> >     Maximum Size: 256 kB
> >     Supported SRAM Types:
> >         Unknown
> >     Installed SRAM Type: Unknown
> >     Speed: Unknown
> >     Error Correction Type: Parity
> >     System Type: Data
> >     Associativity: 8-way Set-associative
> >
> > Handle 0x000A, DMI type 7, 19 bytes
> > Cache Information
> >     Socket Designation: CPU Internal L3
> >     Configuration: Enabled, Not Socketed, Level 3
> >     Operational Mode: Write Back
> >     Location: Internal
> >     Installed Size: 6144 kB
> >     Maximum Size: 6144 kB
> >     Supported SRAM Types:
> >         Unknown
> >     Installed SRAM Type: Unknown
> >     Speed: Unknown
> >     Error Correction Type: Multi-bit ECC
> >     System Type: Unified
> >     Associativity: 12-way Set-associative
> >
> > Handle 0x000B, DMI type 16, 23 bytes
> > Physical Memory Array
> >     Location: System Board Or Motherboard
> >     Use: System Memory
> >     Error Correction Type: None
> >     Maximum Capacity: 32 GB
> >     Error Information Handle: Not Provided
> >     Number Of Devices: 4
> >
> > Handle 0x000C, DMI type 4, 42 bytes
> > Processor Information
> >     Socket Designation: SOCKET 0
> >     Type: Central Processor
> >     Family: Core i7
> >     Manufacturer: Intel(R) Corporation
> >     ID: A9 06 03 00 FF FB EB BF
> >     Signature: Type 0, Family 6, Model 58, Stepping 9
> >     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) Core(TM) i7-3610QM CPU @ 2.30GHz
> >     Voltage: 2.9 V
> >     External Clock: 100 MHz
> >     Max Speed: 3800 MHz
> >     Current Speed: 2300 MHz
> >     Status: Populated, Enabled
> >     Upgrade: Socket rPGA988B
> >     L1 Cache Handle: 0x0009
> >     L2 Cache Handle: 0x0008
> >     L3 Cache Handle: 0x000A
> >     Serial Number: Not Specified
> >     Asset Tag: Fill By OEM
> >     Part Number: Fill By OEM
> >     Core Count: 4
> >     Core Enabled: 4
> >     Thread Count: 8
> >     Characteristics:
> >         64-bit capable
> >
> > Handle 0x000D, DMI type 17, 34 bytes
> > Memory Device
> >     Array Handle: 0x000B
> >     Error Information Handle: Not Provided
> >     Total Width: 64 bits
> >     Data Width: 64 bits
> >     Size: 2048 MB
> >     Form Factor: SODIMM
> >     Set: None
> >     Locator: ChannelA-DIMM0
> >     Bank Locator: BANK 0
> >     Type: DDR3
> >     Type Detail: Synchronous
> >     Speed: 1600 MHz
> >     Manufacturer: Hynix/Hyundai
> >     Serial Number: 196F857E
> >     Asset Tag: 9876543210
> >     Part Number: HMT325S6CFR8C-PB
> >     Rank: 1
> >     Configured Clock Speed: 1600 MHz
> >
> > Handle 0x000E, DMI type 20, 35 bytes
> > Memory Device Mapped Address
> >     Starting Address: 0x00000000000
> >     Ending Address: 0x0007FFFFFFF
> >     Range Size: 2 GB
> >     Physical Device Handle: 0x000D
> >     Memory Array Mapped Address Handle: 0x0013
> >     Partition Row Position: Unknown
> >     Interleave Position: 1
> >     Interleaved Data Depth: 2
> >
> > Handle 0x000F, DMI type 17, 34 bytes
> > Memory Device
> >     Array Handle: 0x000B
> >     Error Information Handle: Not Provided
> >     Total Width: Unknown
> >     Data Width: Unknown
> >     Size: No Module Installed
> >     Form Factor: DIMM
> >     Set: None
> >     Locator: ChannelA-DIMM1
> >     Bank Locator: BANK 1
> >     Type: Unknown
> >     Type Detail: None
> >     Speed: Unknown
> >     Manufacturer: [Empty]
> >     Serial Number: [Empty]
> >     Asset Tag: 9876543210
> >     Part Number: [Empty]
> >     Rank: Unknown
> >     Configured Clock Speed: Unknown
> >
> > Handle 0x0010, DMI type 17, 34 bytes
> > Memory Device
> >     Array Handle: 0x000B
> >     Error Information Handle: Not Provided
> >     Total Width: 64 bits
> >     Data Width: 64 bits
> >     Size: 4096 MB
> >     Form Factor: SODIMM
> >     Set: None
> >     Locator: ChannelB-DIMM0
> >     Bank Locator: BANK 2
> >     Type: DDR3
> >     Type Detail: Synchronous
> >     Speed: 1600 MHz
> >     Manufacturer: Hynix/Hyundai
> >     Serial Number: 0D649EC1
> >     Asset Tag: 9876543210
> >     Part Number: HMT351S6CFR8C-PB
> >     Rank: 2
> >     Configured Clock Speed: 1600 MHz
> >
> > Handle 0x0011, DMI type 20, 35 bytes
> > Memory Device Mapped Address
> >     Starting Address: 0x00080000000
> >     Ending Address: 0x0017FFFFFFF
> >     Range Size: 4 GB
> >     Physical Device Handle: 0x0010
> >     Memory Array Mapped Address Handle: 0x0013
> >     Partition Row Position: Unknown
> >     Interleave Position: 2
> >     Interleaved Data Depth: 2
> >
> > Handle 0x0012, DMI type 17, 34 bytes
> > Memory Device
> >     Array Handle: 0x000B
> >     Error Information Handle: Not Provided
> >     Total Width: Unknown
> >     Data Width: Unknown
> >     Size: No Module Installed
> >     Form Factor: DIMM
> >     Set: None
> >     Locator: ChannelB-DIMM1
> >     Bank Locator: BANK 3
> >     Type: Unknown
> >     Type Detail: None
> >     Speed: Unknown
> >     Manufacturer: [Empty]
> >     Serial Number: [Empty]
> >     Asset Tag: 9876543210
> >     Part Number: [Empty]
> >     Rank: Unknown
> >     Configured Clock Speed: Unknown
> >
> > Handle 0x0013, DMI type 19, 31 bytes
> > Memory Array Mapped Address
> >     Starting Address: 0x00000000000
> >     Ending Address: 0x0017FFFFFFF
> >     Range Size: 6 GB
> >     Physical Array Handle: 0x000B
> >     Partition Width: 4
> >
> > Handle 0x0018, DMI type 131, 64 bytes
> > OEM-specific Type
> >     Header and Data:
> >         83 40 18 00 31 00 00 00 00 00 00 00 00 00 00 00
> >         F8 00 59 1E 00 00 00 00 01 20 00 00 00 00 08 00
> >         B8 05 0A 00 00 00 00 00 C8 00 FF FF 00 00 00 00
> >         00 00 00 00 66 00 00 00 76 50 72 6F 00 00 00 00
> >
> > Handle 0x0019, 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 0x001A, DMI type 127, 4 bytes
> > End Of Table
> >
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-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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