Bug 43168 - Brightness unchangeable Toshiba Satellite C660D-10P
Brightness unchangeable Toshiba Satellite C660D-10P
Status: CLOSED CODE_FIX
Product: ACPI
Classification: Unclassified
Component: Power-Video
All Linux
: P1 normal
Assigned To: Zhang Rui
https://bugs.launchpad.net/ubuntu/+so...
:
: 43221 43310 (view as bug list)
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2012-04-27 19:29 UTC by fireandfuel
Modified: 2012-07-14 15:04 UTC (History)
11 users (show)

See Also:
Kernel Version: 3.2.0-24-generic
Tree: Mainline
Regression: Yes


Attachments
acpi dump (as text) (55 bytes, text/plain)
2012-05-09 18:44 UTC, fireandfuel
Details
PATCH to check why ACPI video probing fails (1.92 KB, patch)
2012-05-23 06:54 UTC, Zhang Rui
Details | Diff
complete dmesg log after applying patch (65.56 KB, text/plain)
2012-05-24 09:39 UTC, fireandfuel
Details
Patch: still use ACPI backlight control if _DOS doesn't exist (1.13 KB, patch)
2012-06-13 06:57 UTC, Zhang Rui
Details | Diff
do not evaluate _DOS for platforms that do not have it (955 bytes, patch)
2012-06-26 02:18 UTC, Zhang Rui
Details | Diff

Description fireandfuel 2012-04-27 19:29:00 UTC
[1.] One line summary of the problem:
Brightness unchangeable Toshiba Satellite C660D-10P

[2.] Full description of the problem/report:
Brightness of the display don't change with FN key + F6 / F7 or config applets.
It works perfectly with kernel version 3.0.0-17-generic.

[3.] Keywords (i.e., modules, networking, kernel):
kernel acpi

[4.] Kernel version (from /proc/version):
Linux version 3.2.0-24-generic (buildd@yellow) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012

[5.] Output of Oops.. message (if applicable) with symbolic information:
N/A

[6.] A small shell script or example program which triggers the
     problem (if possible):
N/A

[7.] Environment:
Description:	Ubuntu 12.04 LTS
Release:	12.04

[7.1.] Software (add the output of the ver_linux script here)
N/A

[7.2.] Processor information (from /proc/cpuinfo):
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 16
model		: 6
model name	: AMD Athlon(tm) II P340 Dual-Core Processor
stepping	: 3
microcode	: 0x10000b6
cpu MHz		: 800.000
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a 3dnowprefetch osvw ibs skinit wdt nodeid_msr npt lbrv svm_lock nrip_save
bogomips	: 4388.86
TLB size	: 1024 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 16
model		: 6
model name	: AMD Athlon(tm) II P340 Dual-Core Processor
stepping	: 3
microcode	: 0x10000b6
cpu MHz		: 800.000
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a 3dnowprefetch osvw ibs skinit wdt nodeid_msr npt lbrv svm_lock nrip_save
bogomips	: 4389.03
TLB size	: 1024 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

[7.3.] Module information (from /proc/modules):
xt_TCPMSS 12707 1 - Live 0x0000000000000000
xt_tcpmss 12501 1 - Live 0x0000000000000000
xt_tcpudp 12603 1 - Live 0x0000000000000000
iptable_mangle 12734 1 - Live 0x0000000000000000
ip_tables 27473 1 iptable_mangle, Live 0x0000000000000000
x_tables 29846 5 xt_TCPMSS,xt_tcpmss,xt_tcpudp,iptable_mangle,ip_tables, Live 0x0000000000000000
pppoe 17875 2 - Live 0x0000000000000000
pppox 13342 1 pppoe, Live 0x0000000000000000
snd_hrtimer 12744 1 - Live 0x0000000000000000
pci_stub 12622 1 - Live 0x0000000000000000
vboxpci 23200 0 - Live 0x0000000000000000 (O)
vboxnetadp 13382 0 - Live 0x0000000000000000 (O)
vboxnetflt 23441 0 - Live 0x0000000000000000 (O)
vboxdrv 287082 3 vboxpci,vboxnetadp,vboxnetflt, Live 0x0000000000000000 (O)
parport_pc 32866 0 - Live 0x0000000000000000
bnep 18281 2 - Live 0x0000000000000000
ppdev 17113 0 - Live 0x0000000000000000
rfcomm 47604 0 - Live 0x0000000000000000
bluetooth 180104 10 bnep,rfcomm, Live 0x0000000000000000
nfsd 277809 2 - Live 0x0000000000000000
binfmt_misc 17540 1 - Live 0x0000000000000000
nfs 356307 0 - Live 0x0000000000000000
lockd 86161 2 nfsd,nfs, Live 0x0000000000000000
fscache 61529 1 nfs, Live 0x0000000000000000
auth_rpcgss 53380 2 nfsd,nfs, Live 0x0000000000000000
nfs_acl 12883 2 nfsd,nfs, Live 0x0000000000000000
sunrpc 245464 6 nfsd,nfs,lockd,auth_rpcgss,nfs_acl, Live 0x0000000000000000
dm_crypt 23125 0 - Live 0x0000000000000000
ext2 73795 1 - Live 0x0000000000000000
arc4 12529 2 - Live 0x0000000000000000
joydev 17693 0 - Live 0x0000000000000000
snd_hda_codec_realtek 223867 1 - Live 0x0000000000000000
snd_hda_intel 33773 3 - Live 0x0000000000000000
snd_hda_codec 127706 2 snd_hda_codec_realtek,snd_hda_intel, Live 0x0000000000000000
snd_hwdep 13668 1 snd_hda_codec, Live 0x0000000000000000
snd_pcm 97188 2 snd_hda_intel,snd_hda_codec, Live 0x0000000000000000
snd_seq_midi 13324 0 - Live 0x0000000000000000
snd_rawmidi 30748 1 snd_seq_midi, Live 0x0000000000000000
fglrx 3263886 56 - Live 0x0000000000000000 (P)
snd_seq_midi_event 14899 1 snd_seq_midi, Live 0x0000000000000000
snd_seq 61896 3 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
snd_timer 29990 3 snd_hrtimer,snd_pcm,snd_seq, Live 0x0000000000000000
psmouse 87692 0 - Live 0x0000000000000000
snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000
serio_raw 13211 0 - Live 0x0000000000000000
k10temp 13166 0 - Live 0x0000000000000000
rtl8192ce 84826 0 - Live 0x0000000000000000
rtl8192c_common 75767 1 rtl8192ce, Live 0x0000000000000000
rtlwifi 111202 1 rtl8192ce, Live 0x0000000000000000
mac80211 506816 3 rtl8192ce,rtl8192c_common,rtlwifi, Live 0x0000000000000000
snd 78855 16 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device, Live 0x0000000000000000
sp5100_tco 13791 0 - Live 0x0000000000000000
toshiba_acpi 18582 0 - Live 0x0000000000000000
sparse_keymap 13890 1 toshiba_acpi, Live 0x0000000000000000
edac_core 53746 0 - Live 0x0000000000000000
soundcore 15091 1 snd, Live 0x0000000000000000
wmi 19256 1 toshiba_acpi, Live 0x0000000000000000
edac_mce_amd 23709 0 - Live 0x0000000000000000
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm, Live 0x0000000000000000
i2c_piix4 13301 0 - Live 0x0000000000000000
shpchp 37277 0 - Live 0x0000000000000000
cfg80211 205544 2 rtlwifi,mac80211, Live 0x0000000000000000
mac_hid 13253 0 - Live 0x0000000000000000
lp 17799 0 - Live 0x0000000000000000
parport 46562 3 parport_pc,ppdev,lp, Live 0x0000000000000000
uvesafb 29304 1 - Live 0x0000000000000000
usbhid 47199 0 - Live 0x0000000000000000
hid 99559 1 usbhid, Live 0x0000000000000000
video 19596 0 - Live 0x0000000000000000
r8169 62099 0 - Live 0x0000000000000000

[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem):
cat /proc/ioports
0000-0cf7 : PCI Bus 0000:00
  0000-001f : dma1
  0020-0021 : pic1
  0040-0043 : timer0
  0050-0053 : timer1
  0060-0060 : keyboard
  0062-0062 : EC data
  0064-0064 : keyboard
  0066-0066 : EC cmd
  0070-0071 : rtc0
  0080-008f : dma page reg
  00a0-00a1 : pic2
  00c0-00df : dma2
  00f0-00ff : fpu
  03c0-03df : uvesafb
  040b-040b : pnp 00:02
  04d0-04d1 : pnp 00:02
    04d0-04d1 : pnp 00:06
  04d6-04d6 : pnp 00:02
  0800-089f : pnp 00:02
    0800-0803 : ACPI PM1a_EVT_BLK
    0804-0805 : ACPI PM1a_CNT_BLK
    0808-080b : ACPI PM_TMR
    0810-0815 : ACPI CPU throttle
    0820-0827 : ACPI GPE0_BLK
  0900-090f : pnp 00:02
  0910-091f : pnp 00:02
  0b00-0b07 : piix4_smbus
  0b20-0b3f : pnp 00:02
  0c00-0c01 : pnp 00:02
  0c14-0c14 : pnp 00:02
  0c50-0c51 : pnp 00:02
  0c52-0c52 : pnp 00:02
  0c6c-0c6c : pnp 00:02
  0c6f-0c6f : pnp 00:02
  0cd0-0cd1 : pnp 00:02
  0cd2-0cd3 : pnp 00:02
  0cd4-0cd5 : pnp 00:02
  0cd6-0cd7 : pnp 00:02
  0cd8-0cdf : pnp 00:02
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
  c000-cfff : PCI Bus 0000:03
    c000-c0ff : 0000:03:00.0
      c000-c0ff : r8169
  d000-dfff : PCI Bus 0000:02
    d000-d0ff : 0000:02:00.0
      d000-d0ff : rtlwifi
  e000-efff : PCI Bus 0000:01
    e000-e0ff : 0000:01:05.0
  f000-f00f : 0000:00:11.0
    f000-f00f : ahci
  f010-f013 : 0000:00:11.0
    f010-f013 : ahci
  f020-f027 : 0000:00:11.0
    f020-f027 : ahci
  f030-f033 : 0000:00:11.0
    f030-f033 : ahci
  f040-f047 : 0000:00:11.0
    f040-f047 : ahci
  fd60-fd6f : pnp 00:06
  fe00-fefe : pnp 00:02

cat /proc/iomem
00000000-0000ffff : reserved
00010000-0009ebff : System RAM
0009ec00-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000fffff : PCI Bus 0000:00
  000c0000-000cf1ff : Video ROM
  000cf800-000d07ff : Adapter ROM
  000e0000-000fffff : reserved
    000f0000-000fffff : System ROM
00100000-afab3fff : System RAM
  01000000-016699ab : Kernel code
  016699ac-01ce4fff : Kernel data
  01dd3000-01f28fff : Kernel bss
  a4000000-a7ffffff : GART
afab4000-afb37fff : ACPI Non-volatile Storage
afb38000-afb48fff : ACPI Tables
afb49000-afb49fff : ACPI Non-volatile Storage
afb4a000-afb6ffff : reserved
afb70000-afb77fff : ACPI Non-volatile Storage
afb78000-afb9bfff : reserved
afb9c000-afd9efff : ACPI Non-volatile Storage
afd9f000-afefffff : System RAM
aff00000-affffffe : RAM buffer
afffffff-ffffffff : PCI Bus 0000:00
  b0000000-bfffffff : pnp 00:0b
  c0000000-cfffffff : PCI Bus 0000:01
    c0000000-cfffffff : 0000:01:05.0
      c0000000-c05fffff : uvesafb
  d0100000-d01fffff : PCI Bus 0000:03
    d0100000-d0103fff : 0000:03:00.0
      d0100000-d0103fff : r8169
    d0104000-d0104fff : 0000:03:00.0
      d0104000-d0104fff : r8169
  e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
    e0000000-efffffff : pnp 00:01
  fec00000-fec00fff : reserved
    fec00000-fec003ff : IOAPIC 0
  fec10000-fec10fff : reserved
    fec10000-fec10fff : pnp 00:02
  fed00000-fed00fff : reserved
    fed00000-fed00fff : pnp 00:02
      fed00000-fed003ff : HPET 0
  fed61000-fed70fff : reserved
    fed61000-fed70fff : pnp 00:02
  fed80000-fed8ffff : reserved
    fed80000-fed8ffff : pnp 00:02
  fee00000-fee00fff : Local APIC
    fee00000-fee00fff : pnp 00:02
  ff400000-ff5fffff : PCI Bus 0000:01
    ff400000-ff4fffff : 0000:01:05.0
    ff500000-ff50ffff : 0000:01:05.0
  ff600000-ff6fffff : PCI Bus 0000:02
    ff600000-ff603fff : 0000:02:00.0
      ff600000-ff603fff : rtlwifi
  ff700000-ff703fff : 0000:00:14.2
    ff700000-ff703fff : ICH HD audio
  ff704000-ff7040ff : 0000:00:13.2
    ff704000-ff7040ff : ehci_hcd
  ff705000-ff705fff : 0000:00:13.0
    ff705000-ff705fff : ohci_hcd
  ff706000-ff7060ff : 0000:00:12.2
    ff706000-ff7060ff : ehci_hcd
  ff707000-ff707fff : 0000:00:12.0
    ff707000-ff707fff : ohci_hcd
  ff708000-ff7083ff : 0000:00:11.0
    ff708000-ff7083ff : ahci
  ff800000-ffffffff : reserved
    ff800000-ffffffff : pnp 00:02
100001000-13fffffff : System RAM

[7.5.] PCI information ('lspci -vvv' as root):
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS880 Host Bridge
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 32
	Capabilities: [c4] HyperTransport: Slave or Primary Interface
		Command: BaseUnitID=0 UnitCnt=12 MastHost- DefDir- DUL-
		Link Control 0: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b-
		Link Config 0: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit DwFcInEn- LWO=16bit DwFcOutEn-
		Link Control 1: CFlE- CST- CFE- <LkFail+ Init- EOC+ TXO+ <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b-
		Link Config 1: MLWI=8bit DwFcIn- MLWO=8bit DwFcOut- LWI=8bit DwFcInEn- LWO=8bit DwFcOutEn-
		Revision ID: 3.00
		Link Frequency 0: 1.6GHz
		Link Error 0: <Prot- <Ovfl- <EOC- CTLTm-
		Link Frequency Capability 0: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+ 800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
		Feature Capability: IsocFC- LDTSTOP+ CRCTM- ECTLT- 64bA- UIDRD-
		Link Frequency 1: 200MHz
		Link Error 1: <Prot- <Ovfl- <EOC- CTLTm-
		Link Frequency Capability 1: 200MHz- 300MHz- 400MHz- 500MHz- 600MHz- 800MHz- 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend-
		Error Handling: PFlE- OFlE- PFE- OFE- EOCFE- RFE- CRCFE- SERRFE- CF- RE- PNFE- ONFE- EOCNFE- RNFE- CRCNFE- SERRNFE-
		Prefetchable memory behind bridge Upper: 00-00
		Bus Number: 00
	Capabilities: [54] HyperTransport: UnitID Clumping
	Capabilities: [40] HyperTransport: Retry Mode
	Capabilities: [9c] HyperTransport: #1a
	Capabilities: [f8] HyperTransport: #1c

00:01.0 PCI bridge: Toshiba America Info Systems Device 9602 (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: ff400000-ff5fffff
	Prefetchable memory behind bridge: 00000000c0000000-00000000cfffffff
	Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [44] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [b0] Subsystem: Toshiba America Info Systems Device fd3c
	Kernel modules: shpchp

00:06.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 2) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: ff600000-ff6fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Port (Slot+), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #3, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep+ BwNot+
		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
			Slot #6, PowerLimit 25.000W; Interlock- NoCompl+
		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
			Changed: MRL- PresDet+ LinkState+
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee0300c  Data: 4151
	Capabilities: [b0] Subsystem: Toshiba America Info Systems Device fd3c
	Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Capabilities: [110 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:07.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 3) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 0000c000-0000cfff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: 00000000d0100000-00000000d01fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Port (Slot+), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep+ BwNot+
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
			Slot #7, PowerLimit 25.000W; Interlock- NoCompl+
		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
			Changed: MRL- PresDet+ LinkState+
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee0300c  Data: 4159
	Capabilities: [b0] Subsystem: Toshiba America Info Systems Device fd3c
	Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Capabilities: [110 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
	Kernel driver in use: pcieport
	Kernel modules: shpchp

00:11.0 SATA controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (prog-if 01 [AHCI 1.0])
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32
	Interrupt: pin A routed to IRQ 42
	Region 0: I/O ports at f040 [size=8]
	Region 1: I/O ports at f030 [size=4]
	Region 2: I/O ports at f020 [size=8]
	Region 3: I/O ports at f010 [size=4]
	Region 4: I/O ports at f000 [size=16]
	Region 5: Memory at ff708000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: [50] MSI: Enable+ Count=1/8 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 4161
	Capabilities: [70] SATA HBA v1.0 InCfgSpace
	Capabilities: [a4] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: ahci

00:12.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at ff707000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci_hcd

00:12.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at ff706000 (32-bit, non-prefetchable) [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
		Bridge: PM- B3+
	Capabilities: [e4] Debug port: BAR=1 offset=00e0
	Kernel driver in use: ehci_hcd

00:13.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at ff705000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci_hcd

00:13.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at ff704000 (32-bit, non-prefetchable) [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
		Bridge: PM- B3+
	Capabilities: [e4] Debug port: BAR=1 offset=00e0
	Kernel driver in use: ehci_hcd

00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev 42)
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Kernel driver in use: piix4_smbus
	Kernel modules: sp5100_tco, i2c-piix4

00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) (rev 40)
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at ff700000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd-hda-intel

00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop+ ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=64
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: fff00000-000fffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-

00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Capabilities: [80] HyperTransport: Host or Secondary Interface
		Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave- <EOCErr- DUL-
		Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0 IsocEn- LSEn+ ExtCTL- 64b-
		Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit DwFcInEn- LWO=16bit DwFcOutEn-
		Revision ID: 3.00
		Link Frequency: 1.6GHz
		Link Error: <Prot- <Ovfl- <EOC- CTLTm-
		Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+ 800MHz+ 1.0GHz+ 1.2GHz+ 1.4GHz- 1.6GHz- Vend-
		Feature Capability: IsocFC+ LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD- ExtRS- UCnfE-

00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Kernel modules: amd64_edac_mod

00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Capabilities: [f0] Secure device <?>
	Kernel driver in use: k10temp
	Kernel modules: k10temp

00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4200 Series] (prog-if 00 [VGA controller])
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at c0000000 (32-bit, prefetchable) [size=256M]
	Region 1: I/O ports at e000 [size=256]
	Region 2: Memory at ff500000 (32-bit, non-prefetchable) [size=64K]
	Region 5: Memory at ff400000 (32-bit, non-prefetchable) [size=1M]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Kernel driver in use: fglrx_pci
	Kernel modules: fglrx_updates, radeon

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
	Subsystem: Realtek Semiconductor Co., Ltd. Device 8184
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: I/O ports at d000 [size=256]
	Region 2: Memory at ff600000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [70] Express (v2) Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
			ClockPM+ Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM L0s L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis+
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis+
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB
	Capabilities: [100 v1] Advanced Error Reporting
		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		AERCap:	First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
	Capabilities: [140 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
	Capabilities: [160 v1] Device Serial Number 01-91-81-fe-ff-4c-e0-00
	Kernel driver in use: rtl8192ce
	Kernel modules: rtl8192ce

03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
	Subsystem: Toshiba America Info Systems Device fd3c
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 43
	Region 0: I/O ports at c000 [size=256]
	Region 2: Memory at d0104000 (64-bit, prefetchable) [size=4K]
	Region 4: Memory at d0100000 (64-bit, prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 4169
	Capabilities: [70] Express (v2) Endpoint, MSI 01
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 unlimited, L1 <64us
			ClockPM+ Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis+
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB
	Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
		Vector table: BAR=4 offset=00000000
		PBA: BAR=4 offset=00000800
	Capabilities: [d0] Vital Product Data
		Unknown small resource type 00, will not decode more.
	Capabilities: [100 v1] Advanced Error Reporting
		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
		CESta:	RxErr+ BadTLP- BadDLLP+ Rollover- Timeout- NonFatalErr+
		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		AERCap:	First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
	Capabilities: [140 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
	Capabilities: [160 v1] Device Serial Number 88-00-00-00-36-4c-e0-00
	Kernel driver in use: r8169
	Kernel modules: r8169

[7.6.] SCSI information (from /proc/scsi/scsi):
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: Hitachi HTS54503 Rev: PB3O
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: HL-DT-ST Model: DVDRAM GT30N     Rev: TN08
  Type:   CD-ROM                           ANSI  SCSI revision: 05

[7.7.] Other information that might be relevant to the problem
       (please look in /proc and include all information that you
       think to be relevant):
N/A

[X.] Other notes, patches, fixes, workarounds:
N/A
Comment 1 Len Brown 2012-05-08 01:54:04 UTC
> 3.0.0-17-generic works
> 3.2.0-24-generic fails

so if you just restore the working kernel
without making any other changes to the system,
then this works again?

Can you reproduce this with an upstream kernel?
If yes, can you bisect where this broke?
Comment 2 fireandfuel 2012-05-08 14:52:01 UTC
(In reply to comment #1)
> > 3.0.0-17-generic works
> > 3.2.0-24-generic fails
> 
> so if you just restore the working kernel
> without making any other changes to the system,
> then this works again?
I have installed both kernels on my system; I simply start 3.0.0-17-generic kernel without other changes and brightness change works.

> Can you reproduce this with an upstream kernel?
> If yes, can you bisect where this broke?
I already reproduced this bug with upstream kernel 3.4-rc4, but I don't know how to bisect where this broke.
Comment 3 Zhang Rui 2012-05-09 17:42:34 UTC
could you please attach the acpidump output of your laptop?

could you please verify if this is a duplicate of bug 43221?
Say, does reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5 help?
Comment 4 fireandfuel 2012-05-09 18:44:04 UTC
Created attachment 73236 [details]
acpi dump (as text)
Comment 5 fireandfuel 2012-05-09 19:05:15 UTC
(In reply to comment #3)
> could you please verify if this is a duplicate of bug 43221?
> Say, does reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5 help?
That's the first time I have to build a kernel. I need some time to learn the kernel configuration & build basics.
Hopefully I can tell you at weekend whether reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5 helps.
Comment 6 fireandfuel 2012-05-13 18:08:44 UTC
(In reply to comment #3)
> could you please verify if this is a duplicate of bug 43221?
> Say, does reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5 help?
Yes, it helps (after 3 hours waiting for the kernel and modules to compile); backlight control is working after reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5. So it looks like this bug is a duplicate of bug 43221.
Comment 7 Len Brown 2012-05-15 02:19:57 UTC
*** Bug 43221 has been marked as a duplicate of this bug. ***
Comment 8 Zhang Rui 2012-05-23 06:54:21 UTC
Created attachment 73359 [details]
PATCH to check why ACPI video probing fails

please apply this patch on top of the latest upstream kernel and attach the dmesg output after boot.
Comment 9 fireandfuel 2012-05-24 09:39:23 UTC
Created attachment 73371 [details]
complete dmesg log after applying patch

Backlight control works on Linux 3.4.0 within a running x.org server, but not on ttys.
Comment 10 Zhang Rui 2012-05-25 02:29:44 UTC
I'm confused.

(In reply to comment #9)
> Backlight control works on Linux 3.4.0 within a running x.org server, but not
> on ttys.

is this true in 3.2 kernel?
ls /sys/class/backlight, do you see the same thing in 3.0, 3.2 and 3.4 kernel?
Comment 11 fireandfuel 2012-05-28 11:29:02 UTC
(In reply to comment #10)
> I'm confused.
> 
> (In reply to comment #9)
> > Backlight control works on Linux 3.4.0 within a running x.org server, but not
> > on ttys.
> 
> is this true in 3.2 kernel?
No. Backlight control completely doesn't work in 3.2.

> ls /sys/class/backlight, do you see the same thing in 3.0, 3.2 and 3.4 kernel?
/sys/class/backlight folder is different in the 3 kernel versions.

3.4 & 3.2:
acpi_video0 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:05.0/backlight/acpi_video0
toshiba -> ../../devices/LNXSYSTM:00/device:00/TOS1900:00/backlight/toshiba

3.0:
acpi_video0 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:05.0/backlight/acpi_video0
Comment 12 Stefan Zwanenburg 2012-06-04 14:21:40 UTC
I can confirm this bug, as I experience the exact same problem. The same commit also appears to be what caused the problem.

I applied the patch from #8, and these are the messages I got:

[    1.220528] Video Debug: acpi_video_bus_start_devices failed
[    1.220822] video: probe of LNXVIDEO:01 failed with error -5

If useful, please let know if I should attach the output of acpidump and/or whatever else you may need.
Comment 13 Stefan Zwanenburg 2012-06-04 14:23:22 UTC
(In reply to comment #12)
> I can confirm this bug, as I experience the exact same problem. The same commit
> also appears to be what caused the problem.
> 
> I applied the patch from #8, and these are the messages I got:
> 
> [    1.220528] Video Debug: acpi_video_bus_start_devices failed
> [    1.220822] video: probe of LNXVIDEO:01 failed with error -5
> 
> If useful, please let know if I should attach the output of acpidump and/or
> whatever else you may need.

My apologies, I missed a line from the dmesg output. Here are the three that appear to be directly related:

[    1.220394] Video Debug: Failed to evaluate _DOS
[    1.220528] Video Debug: acpi_video_bus_start_devices failed
[    1.220822] video: probe of LNXVIDEO:01 failed with error -5
Comment 14 Len Brown 2012-06-12 03:06:09 UTC
*** Bug 43310 has been marked as a duplicate of this bug. ***
Comment 15 Zhang Rui 2012-06-13 06:57:48 UTC
Created attachment 73576 [details]
Patch: still use ACPI backlight control if _DOS doesn't exist

Hi, guys,
please make sure the patch attached fixes the problem for you, without reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5
Comment 16 fafatheone 2012-06-13 13:32:19 UTC
I applied the supplied patch to the mainline kernel and brightness controls work just fine again.
Comment 17 Lamarque V. Souza 2012-06-14 05:02:59 UTC
I confirm that the patch in comment #15 fixes this problem in my notebook (Sager np7652, ATI HD4570) with kernel 3.4.2.
Comment 18 fireandfuel 2012-06-15 11:31:35 UTC
I updated my system to kernel 3.4 and applied the patch in comment #15 and everything works fine again.

@Zhang Rui:
Is it possible to port this patch back to kernel 3.2 and 3.3?
Comment 19 Stefan Zwanenburg 2012-06-16 21:58:53 UTC
(In reply to comment #15)
> Created an attachment (id=73576) [details]
> Patch: still use ACPI backlight control if _DOS doesn't exist
> 
> Hi, guys,
> please make sure the patch attached fixes the problem for you, without
> reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5

This patch does indeed fix my problem, with no visible side-effects. Thank you.
Comment 20 linux 2012-06-17 01:14:03 UTC
The (In reply to comment #15)
> Created an attachment (id=73576) [details]
> Patch: still use ACPI backlight control if _DOS doesn't exist
> 
> Hi, guys,
> please make sure the patch attached fixes the problem for you, without
> reverting commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5

The patch restores backlight control for my Sony VAIO VPC-E, too. It fixes the bug when using kernel 3.5rc2 as well.
Comment 21 stratovarius 2012-06-24 19:46:40 UTC
*** Bug 43581 has been marked as a duplicate of this bug. ***
Comment 22 Emil Velikov 2012-06-24 22:01:33 UTC
Zhang Rui
The patch does not appear to be present in 3.4 or master branch. Can you please confirm if it's queued up. Thanks


The original reporter
The patch that caused the regression (ea9f885) was introduced during the 3.4 development cycle. Therefore you are experiencing another bug with the 3.2 kernel, consider opening another bug about it

Regards
Emil
Comment 23 Zhang Rui 2012-06-26 02:18:51 UTC
Created attachment 74281 [details]
do not evaluate _DOS for platforms that do not have it

Hi, guys,
could you please test this patch and see if it works as well?
I think this one is better and I hope to push it upstream ASAP.
Comment 24 fafatheone 2012-06-26 16:33:58 UTC
I applied the patch against mainline kernel git and it works just fine.
Comment 25 linux 2012-06-26 23:31:45 UTC
> I applied the patch against mainline kernel git and it works just fine.
The new patch works for me, too.
Comment 26 Lamarque V. Souza 2012-06-26 23:53:31 UTC
It works in my notebook too.
Comment 27 Len Brown 2012-06-30 04:40:08 UTC
Rui,
Is it possible that Windows compatibility
w/ the ACPI video driver varies with windows _OSI level?

In any case, this patch addresses the regression, and is applied.
Comment 28 Florian Mickler 2012-07-01 09:40:53 UTC
A patch referencing this bug report has been merged in Linux v3.5-rc5:

commit b03738430c7537d5f87948e0b35d8aaf2688c6b4
Author: Zhang Rui <rui.zhang@intel.com>
Date:   Wed Jun 20 09:48:43 2012 +0800

    ACPI video: Still use ACPI backlight control if _DOS doesn't exist

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