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Date: Wed, 24 Jul 2013 13:45:56 +0200
From: Jörg Otte <jrg.otte@...il.com>
To: "Rafael J. Wysocki" <rjw@...k.pl>
Cc: Kamal Mostafa <kamal@...onical.com>,
James Hogan <james@...anarts.com>,
Steven Newbury <steve@...wbury.org.uk>,
Martin Steigerwald <Martin@...htvoll.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Matthew Garrett <matthew.garrett@...ula.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: Linux 3.11-rc2 (acpi backlight)
2013/7/24 Rafael J. Wysocki <rjw@...k.pl>:
> On Tuesday, July 23, 2013 11:46:29 AM Kamal Mostafa wrote:
>> On Mon, 2013-07-22 at 21:54 +0200, Rafael J. Wysocki wrote:
>> > On Monday, July 22, 2013 11:11:54 AM Linus Torvalds wrote:
>> > > On Mon, Jul 22, 2013 at 6:02 AM, Rafael J. Wysocki <rjw@...k.pl> wrote:
>> > > >
>> > > > Linus, do you want me to send a pull request reverting 8c5bd7a and efaa14c?
>> > >
>> > > Yes, but [...] I'd suggest doing the revert just in time for
>> > > rc3, but waiting until then to gather info about people who see
>> > > breakage.
>> > >
>> > > Sound like a plan?
>> >
>> > Yes, it does.
>> >
>> > Rafael
>>
>>
>> Hi Rafael-
>>
>> For your reference...
>>
>> As James Hogan reported, those ACPI changes break backlight control on
>> the "Dell XPS13" Ivy Bridge models (the Sandy Bridge XPS13 model is not
>> affected).
>>
>> I confirm that reverting 8c5bd7a and efaa14c fixes it again.
>
> Thanks!
>
> I'd like to collect some information on the systems having problems with those
> two commits (to see if they are similar somehow).
>
> It seems that one common symptom is that brightness cannot be controlled
> through function keys. Is that correct for all of you?
Yes
> If so, did you try
> any other way to control brightness, like a GUI-based?
Yes, it has no visible effect.
> Also, can you all please send me (a) the output of dmidecode and (b) the
> contents of /proc/cpuinfo from your systems?
# dmidecode 2.11
# SMBIOS entry point at 0xdae8b000
SMBIOS 2.7 present.
36 structures occupying 1727 bytes.
Table at 0x000E0B70.
Handle 0x0000, DMI type 4, 42 bytes
Processor Information
Socket Designation: CPU Socket - U3E1
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) i5-3210M CPU @ 2.50GHz
Voltage: 0.9 V
External Clock: 100 MHz
Max Speed: 2500 MHz
Current Speed: 2500 MHz
Status: Populated, Enabled
Upgrade: Socket rPGA988B
L1 Cache Handle: 0x0002
L2 Cache Handle: 0x0003
L3 Cache Handle: 0x0004
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: 2
Core Enabled: 2
Thread Count: 4
Characteristics:
64-bit capable
Handle 0x0001, DMI type 7, 19 bytes
Cache Information
Socket Designation: L1-Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Through
Location: Internal
Installed Size: 32 kB
Maximum Size: 32 kB
Supported SRAM Types:
Unknown
Installed SRAM Type: Unknown
Speed: Unknown
Error Correction Type: Parity
System Type: Data
Associativity: 8-way Set-associative
Handle 0x0002, DMI type 7, 19 bytes
Cache Information
Socket Designation: L1-Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Through
Location: Internal
Installed Size: 32 kB
Maximum Size: 32 kB
Supported SRAM Types:
Unknown
Installed SRAM Type: Unknown
Speed: Unknown
Error Correction Type: Parity
System Type: Instruction
Associativity: 8-way Set-associative
Handle 0x0003, DMI type 7, 19 bytes
Cache Information
Socket Designation: L2-Cache
Configuration: Enabled, Not Socketed, Level 2
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: Multi-bit ECC
System Type: Unified
Associativity: 8-way Set-associative
Handle 0x0004, DMI type 7, 19 bytes
Cache Information
Socket Designation: L3-Cache
Configuration: Enabled, Not Socketed, Level 3
Operational Mode: Write Back
Location: Internal
Installed Size: 3072 kB
Maximum Size: 3072 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 0x0005, DMI type 129, 8 bytes
OEM-specific Type
Header and Data:
81 08 05 00 01 01 02 01
Strings:
Intel_ASF
Intel_ASF_001
Handle 0x0006, DMI type 131, 64 bytes
OEM-specific Type
Header and Data:
83 40 06 00 31 00 00 00 00 00 00 00 00 00 00 00
F8 00 59 1E FF FF FF FF 01 20 00 00 00 00 08 00
93 05 03 00 00 00 00 00 C8 00 FF FF 00 00 00 00
00 00 00 00 60 00 00 00 76 50 72 6F 00 00 00 00
Handle 0x0007, 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 0x0008, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x0007
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 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: 31480B56
Asset Tag: 9876543210
Part Number: HMT351S6CFR8A-PB
Rank: Unknown
Configured Clock Speed: 1600 MHz
Handle 0x0009, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x0007
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: Not Specified
Serial Number: Not Specified
Asset Tag: 9876543210
Part Number: Not Specified
Rank: Unknown
Configured Clock Speed: Unknown
Handle 0x000A, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x0007
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: Kingston
Serial Number: AE20A7A4
Asset Tag: 9876543210
Part Number: 9905428-085.A00G
Rank: Unknown
Configured Clock Speed: 1600 MHz
Handle 0x000B, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x0007
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: Not Specified
Serial Number: Not Specified
Asset Tag: 9876543210
Part Number: Not Specified
Rank: Unknown
Configured Clock Speed: Unknown
Handle 0x000C, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x001FFFFFFFF
Range Size: 8 GB
Physical Device Handle: 0x0008
Memory Array Mapped Address Handle: 0x000E
Partition Row Position: 1
Interleave Position: 1
Interleaved Data Depth: 2
Handle 0x000D, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x001FFFFFFFF
Range Size: 8 GB
Physical Device Handle: 0x0009
Memory Array Mapped Address Handle: 0x000E
Partition Row Position: 1
Interleave Position: 2
Interleaved Data Depth: 2
Handle 0x000E, DMI type 19, 31 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x001FFFFFFFF
Range Size: 8 GB
Physical Array Handle: 0x0007
Partition Width: 4
Handle 0x000F, DMI type 0, 24 bytes
BIOS Information
Vendor: FUJITSU // Phoenix Technologies Ltd.
Version: Version 1.09
Release Date: 05/22/2012
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 4096 kB
Characteristics:
PCI is supported
PC Card (PCMCIA) is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
3.5"/720 kB 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
BIOS boot specification is supported
Function key-initiated network boot is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 1.9
Handle 0x0010, DMI type 1, 27 bytes
System Information
Manufacturer: FUJITSU
Product Name: LIFEBOOK AH532
Version:
Serial Number: YLKV045679
UUID: ABAF1C3F-6808-E211-9C17-5C9AD8692B39
Wake-up Type: Power Switch
SKU Number:
Family:
Handle 0x0011, DMI type 2, 15 bytes
Base Board Information
Manufacturer: FUJITSU
Product Name: FJNBB1C
Version:
Serial Number: 578102-01R2602242
Asset Tag:
Features:
Board is a hosting board
Location In Chassis:
Chassis Handle: 0x0000
Type: Motherboard
Contained Object Handles: 0
Handle 0x0012, DMI type 3, 22 bytes
Chassis Information
Manufacturer: FUJITSU
Type: Notebook
Lock: Not Present
Version:
Serial Number: YLKV045679
Asset Tag:
Boot-up State: Unknown
Power Supply State: Unknown
Thermal State: Unknown
Security Status: Unknown
OEM Information: 0x00000000
Height: Unspecified
Number Of Power Cords: Unspecified
Contained Elements: 0
SKU Number: Not Specified
Handle 0x0013, DMI type 11, 5 bytes
OEM Strings
String 1: fAjTCRFj91ObS
String 2: 3gwdwbZfdahV4
String 3: REFrSQarvBTce
Handle 0x0014, DMI type 12, 5 bytes
System Configuration Options
Option 1: SMI:00B2C801
Option 2: TIM:201307241127
Option 3: HDD: 826KC34UT
Option 4: MEM:HMT351S6CFR8A-PB 31480B56
Handle 0x0015, DMI type 13, 22 bytes
BIOS Language Information
Language Description Format: Abbreviated
Installable Languages: 7
en-US
fr-FR
ja-JP
ko-KR
zh-CHT
zh-CHS
ru-RU
Currently Installed Language: en-US
Handle 0x0016, DMI type 22, 26 bytes
Portable Battery
Location: Internal Battery
Manufacturer: FUJITSU
Manufacture Date:
Serial Number: CP5677170101120602120416006746
Name: CP567717-01
Chemistry: Lithium Ion
Design Capacity: 47520 mWh
Design Voltage: 10800 mV
SBDS Version: V1.0
Maximum Error: Unknown
OEM-specific Information: 0x00000000
Handle 0x0017, DMI type 32, 11 bytes
System Boot Information
Status: No errors detected
Handle 0x0018, DMI type 143, 16 bytes
OEM-specific Type
Header and Data:
8F 10 18 00 00 5F 46 4A 5F 4F 45 4D 5F 12 00 00
Handle 0x0019, DMI type 143, 8 bytes
OEM-specific Type
Header and Data:
8F 08 19 00 01 03 00 00
Handle 0x001A, DMI type 143, 11 bytes
OEM-specific Type
Header and Data:
8F 0B 1A 00 02 00 01 00 03 56 05
Handle 0x001B, DMI type 143, 11 bytes
OEM-specific Type
Header and Data:
8F 0B 1B 00 02 06 01 15 37 AF 0D
Handle 0x001C, DMI type 143, 11 bytes
OEM-specific Type
Header and Data:
8F 0B 1C 00 02 01 01 01 00 00 00
Handle 0x001D, DMI type 143, 11 bytes
OEM-specific Type
Header and Data:
8F 0B 1D 00 02 02 01 01 00 00 00
Handle 0x001E, DMI type 143, 11 bytes
OEM-specific Type
Header and Data:
8F 0B 1E 00 02 05 01 00 00 00 00
Handle 0x001F, DMI type 136, 6 bytes
OEM-specific Type
Header and Data:
88 06 1F 00 5A 5A
Handle 0x0020, DMI type 21, 7 bytes
Built-in Pointing Device
Type: Other
Interface: PS/2
Buttons: 2
Handle 0x0021, DMI type 24, 5 bytes
Hardware Security
Power-On Password Status: Disabled
Keyboard Password Status: Not Implemented
Administrator Password Status: Enabled
Front Panel Reset Status: Not Implemented
Handle 0x0022, DMI type 15, 105 bytes
System Event Log
Area Length: 114 bytes
Header Start Offset: 0x0000
Header Length: 16 bytes
Data Start Offset: 0x0010
Access Method: General-purpose non-volatile data functions
Access Address: 0x00F0
Status: Valid, Not Full
Change Token: 0x00000006
Header Format: Type 1
Supported Log Type Descriptors: 41
Descriptor 1: Single-bit ECC memory error
Data Format 1: Multiple-event handle
Descriptor 2: Multi-bit ECC memory error
Data Format 2: Multiple-event handle
Descriptor 3: Parity memory error
Data Format 3: None
Descriptor 4: Bus timeout
Data Format 4: None
Descriptor 5: I/O channel block
Data Format 5: None
Descriptor 6: Software NMI
Data Format 6: None
Descriptor 7: POST memory resize
Data Format 7: None
Descriptor 8: POST error
Data Format 8: POST results bitmap
Descriptor 9: PCI parity error
Data Format 9: None
Descriptor 10: PCI system error
Data Format 10: None
Descriptor 11: CPU failure
Data Format 11: None
Descriptor 12: EISA failsafe timer timeout
Data Format 12: None
Descriptor 13: Correctable memory log disabled
Data Format 13: None
Descriptor 14: Logging disabled
Data Format 14: None
Descriptor 15: System limit exceeded
Data Format 15: None
Descriptor 16: Asynchronous hardware timer expired
Data Format 16: None
Descriptor 17: System configuration information
Data Format 17: None
Descriptor 18: Hard disk information
Data Format 18: None
Descriptor 19: System reconfigured
Data Format 19: None
Descriptor 20: Uncorrectable CPU-complex error
Data Format 20: None
Descriptor 21: Log area reset/cleared
Data Format 21: None
Descriptor 22: System boot
Data Format 22: None
Descriptor 23: OEM-specific
Data Format 23: None
Descriptor 24: OEM-specific
Data Format 24: None
Descriptor 25: OEM-specific
Data Format 25: None
Descriptor 26: OEM-specific
Data Format 26: None
Descriptor 27: OEM-specific
Data Format 27: None
Descriptor 28: OEM-specific
Data Format 28: None
Descriptor 29: OEM-specific
Data Format 29: None
Descriptor 30: OEM-specific
Data Format 30: None
Descriptor 31: OEM-specific
Data Format 31: None
Descriptor 32: OEM-specific
Data Format 32: None
Descriptor 33: OEM-specific
Data Format 33: None
Descriptor 34: OEM-specific
Data Format 34: None
Descriptor 35: OEM-specific
Data Format 35: None
Descriptor 36: OEM-specific
Data Format 36: None
Descriptor 37: OEM-specific
Data Format 37: None
Descriptor 38: OEM-specific
Data Format 38: None
Descriptor 39: OEM-specific
Data Format 39: None
Descriptor 40: OEM-specific
Data Format 40: None
Descriptor 41: OEM-specific
Data Format 41: None
Handle 0xFEFF, DMI type 127, 4 bytes
End Of Table
~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz
stepping : 9
microcode : 0x12
cpu MHz : 1875.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat
epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase smep erms
bogomips : 4989.01
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz
stepping : 9
microcode : 0x12
cpu MHz : 1625.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat
epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase smep erms
bogomips : 4989.01
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz
stepping : 9
microcode : 0x12
cpu MHz : 1700.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 2
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat
epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase smep erms
bogomips : 4989.01
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz
stepping : 9
microcode : 0x12
cpu MHz : 1675.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 2
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat
epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase smep erms
bogomips : 4989.01
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
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