BUG REPORT backlight acpi: Brightness shortcuts don't work on Fujitsu

(By error I've already sent this message to the linux-kernel mailing list. Sorry for the double message.)

On Fujitsu Lifebook A512 pressing Fn+F6 or Fn+F7 the brightness doesn't change.

I tried the latest upstream kernel 3.15-rc8 but the hot keys still don't work.

----------------------------------
WORKAROUND
Execute at a terminal:
for i in /sys/class/backlight/*; do echo $i;cat $i/brightness;cat $i/max_brightness;done

shows this output:
/sys/class/backlight/acpi_video0
1
100
/sys/class/backlight/intel_backlight
4882
4882

Create /usr/share/X11/xorg.conf.d/20-intel.conf to set the "intel_backlight" interface, which will make the brightness shortcuts Fn+F6 and Fn+F7 work:
Section "Device"
Identifier "card0"
Driver "intel"
Option "Backlight" "intel_backlight"
BusID "PCI:0:2:0"
EndSection
----------------------------------

The bug has been previously reported here
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1318299

Here follows the list of commands with hardware/software infos. Please let me know if you need further informations.

Regards
Jeremie

##################################
~$ cat /proc/version

Linux version 3.15.0-031500rc8-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201406012235 SMP Mon Jun 2 02:36:11 UTC 2014

##################################
~$ lsb_release -rd

Description:    Ubuntu 14.04 LTS
Release:    14.04

##################################
~$ sh /usr/src/linux-headers-3.15.0-031500rc8/scripts/ver_linux

If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes.

Linux i3 3.15.0-031500rc8-generic #201406012235 SMP Mon Jun 2 02:36:11 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Gnu C                  4.8
Gnu make               3.81
binutils               2.24
util-linux             2.20.1
mount                  support
module-init-tools      15
e2fsprogs              1.42.9
pcmciautils            018
PPP                    2.4.5
Linux C Library        2.19
Dynamic linker (ldd)   2.19
Procps                 3.3.9
Net-tools              1.60
Kbd                    1.15.5
Sh-utils               8.21
wireless-tools         30
Modules Loaded         ctr ccm bnep rfcomm nls_iso8859_1 

snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops arc4 videobuf2_core videodev iwldvm intel_rapl mac80211 x86_pkg_temp_thermal intel_powerclamp snd_hda_intel snd_hda_controller i915 coretemp snd_hda_codec kvm_intel snd_hwdep kvm snd_pcm snd_seq_midi snd_seq_midi_event crct10dif_pclmul snd_rawmidi crc32_pclmul ghash_clmulni_intel btusb snd_seq iwlwifi joydev serio_raw snd_seq_device drm_kms_helper bluetooth mei_me cryptd snd_timer drm cfg80211 mei snd soundcore microcode i2c_algo_bit parport_pc lpc_ich ppdev 6lowpan_iphc fujitsu_laptop lp mac_hid video parport hid_generic usbhid hid psmouse ahci r8169 libahci mii

#################################
~$ cat /proc/cpuinfo

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz
stepping : 9
microcode : 0x17
cpu MHz : 2349.000
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 xsave avx f16c lahf_lm arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips : 4788.95
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) i3-3110M CPU @ 2.40GHz
stepping : 9
microcode : 0x17
cpu MHz : 1711.500
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 xsave avx f16c lahf_lm arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips : 4788.95
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) i3-3110M CPU @ 2.40GHz
stepping : 9
microcode : 0x17
cpu MHz : 2311.500
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 xsave avx f16c lahf_lm arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips : 4788.95
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) i3-3110M CPU @ 2.40GHz
stepping : 9
microcode : 0x17
cpu MHz : 2049.000
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 xsave avx f16c lahf_lm arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms
bogomips : 4788.95
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

#################################
~$ cat /proc/modules

ctr 13193 1 - Live 0x0000000000000000
ccm 17856 1 - Live 0x0000000000000000
bnep 19884 2 - Live 0x0000000000000000
rfcomm 75078 8 - Live 0x0000000000000000
nls_iso8859_1 12713 1 - Live 0x0000000000000000
snd_hda_codec_hdmi 48229 1 - Live 0x0000000000000000
snd_hda_codec_realtek 72529 1 - Live 0x0000000000000000
snd_hda_codec_generic 70087 1 snd_hda_codec_realtek, Live 0x0000000000000000
uvcvideo 82299 0 - Live 0x0000000000000000
videobuf2_vmalloc 13216 1 uvcvideo, Live 0x0000000000000000
videobuf2_memops 13362 1 videobuf2_vmalloc, Live 0x0000000000000000
arc4 12573 2 - Live 0x0000000000000000
videobuf2_core 45435 1 uvcvideo, Live 0x0000000000000000
videodev 149504 2 uvcvideo,videobuf2_core, Live 0x0000000000000000
iwldvm 243378 0 - Live 0x0000000000000000
intel_rapl 19238 0 - Live 0x0000000000000000
mac80211 663883 1 iwldvm, Live 0x0000000000000000
x86_pkg_temp_thermal 14312 0 - Live 0x0000000000000000
intel_powerclamp 19099 0 - Live 0x0000000000000000
snd_hda_intel 30608 3 - Live 0x0000000000000000
snd_hda_controller 35518 1 snd_hda_intel, Live 0x0000000000000000
i915 873414 3 - Live 0x0000000000000000
coretemp 13638 0 - Live 0x0000000000000000
snd_hda_codec 144671 5
snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller,
Live 0x0000000000000000
kvm_intel 148919 0 - Live 0x0000000000000000
snd_hwdep 13613 1 snd_hda_codec, Live 0x0000000000000000
kvm 463855 1 kvm_intel, Live 0x0000000000000000
snd_pcm 113863 4
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller,snd_hda_codec, Live
0x0000000000000000
snd_seq_midi 13564 0 - Live 0x0000000000000000
snd_seq_midi_event 14899 1 snd_seq_midi, Live 0x0000000000000000
crct10dif_pclmul 14268 0 - Live 0x0000000000000000
snd_rawmidi 30865 1 snd_seq_midi, Live 0x0000000000000000
crc32_pclmul 13180 0 - Live 0x0000000000000000
ghash_clmulni_intel 13230 0 - Live 0x0000000000000000
btusb 32555 0 - Live 0x0000000000000000
snd_seq 67636 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
iwlwifi 185872 1 iwldvm, Live 0x0000000000000000
joydev 17587 0 - Live 0x0000000000000000
serio_raw 13483 0 - Live 0x0000000000000000
snd_seq_device 14497 3 snd_seq_midi,snd_rawmidi,snd_seq, Live
0x0000000000000000
drm_kms_helper 59729 1 i915, Live 0x0000000000000000
bluetooth 461775 22 bnep,rfcomm,btusb, Live 0x0000000000000000
mei_me 18562 0 - Live 0x0000000000000000
cryptd 20531 1 ghash_clmulni_intel, Live 0x0000000000000000
snd_timer 30118 2 snd_pcm,snd_seq, Live 0x0000000000000000
drm 310655 5 i915,drm_kms_helper, Live 0x0000000000000000
cfg80211 515506 3 iwldvm,mac80211,iwlwifi, Live 0x0000000000000000
mei 87522 1 mei_me, Live 0x0000000000000000
snd 74195 17 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_seq_device,snd_timer, Live 0x0000000000000000
soundcore 12680 2 snd_hda_codec,snd, Live 0x0000000000000000
microcode 24391 0 - Live 0x0000000000000000
i2c_algo_bit 13564 1 i915, Live 0x0000000000000000
parport_pc 32906 0 - Live 0x0000000000000000
lpc_ich 21176 0 - Live 0x0000000000000000
ppdev 17711 0 - Live 0x0000000000000000
6lowpan_iphc 18968 1 bluetooth, Live 0x0000000000000000
fujitsu_laptop 19001 0 - Live 0x0000000000000000
lp 17799 0 - Live 0x0000000000000000
mac_hid 13275 0 - Live 0x0000000000000000
video 19932 1 i915, Live 0x0000000000000000
parport 42481 3 parport_pc,ppdev,lp, Live 0x0000000000000000
hid_generic 12559 0 - Live 0x0000000000000000
usbhid 53121 0 - Live 0x0000000000000000
hid 106436 2 hid_generic,usbhid, Live 0x0000000000000000
psmouse 113095 0 - Live 0x0000000000000000
ahci 30167 3 - Live 0x0000000000000000
r8169 73316 0 - Live 0x0000000000000000
libahci 32191 1 ahci, Live 0x0000000000000000
mii 13981 1 r8169, Live 0x0000000000000000

#################################
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
0070-0077 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0400-0403 : ACPI PM1a_EVT_BLK
0404-0405 : ACPI PM1a_CNT_BLK
0408-040b : ACPI PM_TMR
0410-0415 : ACPI CPU throttle
0420-042f : ACPI GPE0_BLK
0430-0433 : iTCO_wdt
0450-0450 : ACPI PM2_CNT_BLK
0454-0457 : pnp 00:06
0458-047f : pnp 00:04

     0460-047f : iTCO_wdt

0500-057f : pnp 00:04
0680-069f : pnp 00:04
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
1000-100f : pnp 00:04
164e-164f : pnp 00:04
2000-2fff : PCI Bus 0000:03
3000-3fff : PCI Bus 0000:02

     3000-30ff : 0000:02:00.0
       3000-30ff : r8169
   4000-403f : 0000:00:02.0
   4060-407f : 0000:00:1f.2
     4060-407f : ahci
   4080-4087 : 0000:00:1f.2
     4080-4087 : ahci
   4088-408f : 0000:00:1f.2
     4088-408f : ahci
   4090-4093 : 0000:00:1f.2
     4090-4093 : ahci
   4094-4097 : 0000:00:1f.2
     4094-4097 : ahci
   efa0-efbf : 0000:00:1f.3
   ffff-ffff : pnp 00:04
     ffff-ffff : pnp 00:04

#################################
cat /proc/iomem

00000000-00000fff : reserved
00001000-0008ffff : System RAM
00090000-000bffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000cefff : Video ROM
000f0000-000fffff : System ROM
00100000-1fffffff : System RAM
02000000-0277d298 : Kernel code
0277d299-02d20f7f : Kernel data
02e7d000-02fe1fff : Kernel bss
20000000-201fffff : reserved
20200000-40003fff : System RAM
40004000-40004fff : reserved
40005000-c7139fff : System RAM
c713a000-c733bfff : reserved
c733c000-d7e05fff : System RAM
d7e06000-d8005fff : reserved
d8006000-daeeefff : reserved
daeef000-daf9efff : ACPI Non-volatile Storage
daf9f000-daffefff : ACPI Tables
dafff000-daffffff : System RAM
db000000-df9fffff : reserved
dba00000-df9fffff : Graphics Stolen Memory
dfa00000-feafffff : PCI Bus 0000:00
e0000000-efffffff : 0000:00:02.0
f0000000-f03fffff : 0000:00:02.0
f0400000-f04fffff : PCI Bus 0000:02

     f0400000-f0403fff : 0000:02:00.0
       f0400000-f0403fff : r8169
     f0404000-f0404fff : 0000:02:00.0
       f0404000-f0404fff : r8169
   f0500000-f0cfffff : PCI Bus 0000:03
   f0d00000-f14fffff : PCI Bus 0000:03
   f1500000-f15fffff : PCI Bus 0000:01
     f1500000-f1501fff : 0000:01:00.0
       f1500000-f1501fff : iwlwifi
   f1600000-f1603fff : 0000:00:1b.0
     f1600000-f1603fff : ICH HD audio
   f1604000-f16040ff : 0000:00:1f.3
   f1605000-f160500f : 0000:00:16.0
     f1605000-f160500f : mei_me
   f1608000-f16087ff : 0000:00:1f.2
     f1608000-f16087ff : ahci
   f1609000-f16093ff : 0000:00:1d.0
     f1609000-f16093ff : ehci_hcd
   f160a000-f160a3ff : 0000:00:1a.0
     f160a000-f160a3ff : ehci_hcd
   f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f]
     f80f8000-f80f8fff : reserved

fec00000-fec003ff : IOAPIC 0
fed00000-fed003ff : HPET 0
fed10000-fed17fff : pnp 00:09
fed18000-fed18fff : pnp 00:09
fed19000-fed19fff : pnp 00:09
fed1c000-fed1ffff : reserved
fed1c000-fed1ffff : pnp 00:09

     fed1f410-fed1f414 : iTCO_wdt

fed20000-fed3ffff : pnp 00:09
fed45000-fed8ffff : pnp 00:09
fed90000-fed93fff : pnp 00:09
fee00000-feefffff : pnp 00:09
fee00000-fee00fff : Local APIC
ff000000-ffffffff : pnp 00:09
fffff000-ffffffff : pnp 00:09
100000000-11f5fffff : System RAM
11f600000-11fffffff : RAM buffer

#################################
sudo lspci -vvv

00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
Subsystem: Fujitsu Limited. Device 16bf
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
Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: ivb_uncore

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Fujitsu Limited. Device 16c2
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
     Interrupt: pin A routed to IRQ 44
     Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
     Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
     Region 4: I/O ports at 4000 [size=64]
     Expansion ROM at <unassigned> [disabled]
     Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
         Address: fee0f00c  Data: 41c1
     Capabilities: [d0] 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-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915

00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: Fujitsu Limited. Device 16ea
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
Interrupt: pin A routed to IRQ 42
Region 0: Memory at f1605000 (64-bit, non-prefetchable) [size=16]
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: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0f00c Data: 41a1
Kernel driver in use: mei_me

00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
Subsystem: Fujitsu Limited. Device 16e8
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
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f160a000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ehci-pci

00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
Subsystem: Fujitsu Limited. Device 1757
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 45
Region 0: Memory at f1600000 (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-
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0f00c Data: 41e1
Capabilities: [70] Express (v1) Root Complex Integrated Endpoint,
MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE-
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-
Capabilities: [100 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-
VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=1 ArbSelect=Fixed TC/VC=22
Status: NegoPending- InProgress-
Capabilities: [130 v1] Root Complex Link
Desc: PortNumber=0f ComponentID=00 EltType=Config
Link0: Desc: TargetPort=00 TargetComponent=00 AssocRCRB-
LinkType=MemMapped LinkValid+
Addr: 00000000fed1c000
Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) (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=01, subordinate=01, sec-latency=0
     I/O behind bridge: 0000f000-00000fff
     Memory behind bridge: f1500000-f15fffff
     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: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
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 #1, Speed 5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- 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 #0, PowerLimit 10.000W; 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: Range BC, TimeoutDis+, LTR-, OBFF
Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: Fujitsu Limited. Device 16e9
Capabilities: [a0] 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-
Kernel driver in use: pcieport

00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4) (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: 00003000-00003fff
     Memory behind bridge: fff00000-000fffff
     Prefetchable memory behind bridge: 00000000f0400000-00000000f04fffff
     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: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
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, Exit
Latency L0s <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- 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 #2, PowerLimit 10.000W; 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: Range BC, TimeoutDis+, LTR-, OBFF
Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: Fujitsu Limited. Device 16e9
Capabilities: [a0] 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-
Kernel driver in use: pcieport

00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4) (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=07, sec-latency=0
     I/O behind bridge: 00002000-00002fff
     Memory behind bridge: f0d00000-f14fffff
     Prefetchable memory behind bridge: 00000000f0500000-00000000f0cfffff
     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: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
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, Exit
Latency L0s <1us, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+
Surprise+
Slot #3, PowerLimit 10.000W; 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: Range BC, TimeoutDis+, LTR-, OBFF
Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: Fujitsu Limited. Device 16e9
Capabilities: [a0] 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-
Kernel driver in use: pcieport

00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Fujitsu Limited. Device 16e8
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
Interrupt: pin A routed to IRQ 23
Region 0: Memory at f1609000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ehci-pci

00:1f.0 ISA bridge: Intel Corporation HM75 Express Chipset LPC Controller (rev 04)
Subsystem: Fujitsu Limited. Device 16e0
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
Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: lpc_ich

00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Fujitsu Limited. Device 16e2
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
     Interrupt: pin B routed to IRQ 41
     Region 0: I/O ports at 4088 [size=8]
     Region 1: I/O ports at 4094 [size=4]
     Region 2: I/O ports at 4080 [size=8]
     Region 3: I/O ports at 4090 [size=4]
     Region 4: I/O ports at 4060 [size=32]
     Region 5: Memory at f1608000 (32-bit, non-prefetchable) [size=2K]
     Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
         Address: fee0300c  Data: 4191
     Capabilities: [70] 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: [a8] SATA HBA v1.0 BAR4 Offset=00000004
Capabilities: [b0] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
Subsystem: Fujitsu Limited. Device 16e6
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-
Interrupt: pin C routed to IRQ 255
Region 0: Memory at f1604000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at efa0 [size=32]

01:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)
Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN
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: Memory at f1500000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] 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: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0800c Data: 41b1
Capabilities: [e0] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<512ns, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- 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, Exit
Latency L0s <4us, L1 <32us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
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] Device Serial Number 00-c2-c6-ff-ff-43-c7-59 Kernel driver in use: iwlwifi

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
Subsystem: Fujitsu Limited. Device 175a
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 40
Region 0: I/O ports at 3000 [size=256]
Region 2: Memory at f0404000 (64-bit, prefetchable) [size=4K] Region 4: Memory at f0400000 (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: 00000000fee0f00c Data: 4181
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 4096 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s unlimited, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00000800
Capabilities: [d0] Vital Product Data
No end tag found
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: 14, 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=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 01-00-00-00-68-4c-e0-00 Kernel driver in use: r8169

#################################
cat /proc/scsi/scsi

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: HGST HTS545050A7 Rev: GG2O
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: MATSHITA Model: DVD-RAM UJ8C0 Rev: 1.00
Type: CD-ROM ANSI SCSI revision: 05
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: HGST HTS545050A7 Rev: GG2O
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: MATSHITA Model: DVD-RAM UJ8C0 Rev: 1.00
Type: CD-ROM ANSI SCSI revision: 05

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Quoted 3 lines

On Fujitsu Lifebook A512 pressing Fn+F6 or Fn+F7 the brightness doesn't change.

Sounds like the notification isn't sent on hotkey press. Please attach your acpidump:

# acpidump > acpidump.txt
either to your original bug report or create a new one at:
https://bugzilla.kernel.org under category ACPI/Power-Video.

Il 03/06/2014 10:01, Aaron Lu ha scritto:

Quoted 10 lines · Jeremie Tamburini

Quoted 3 lines

On Fujitsu Lifebook A512 pressing Fn+F6 or Fn+F7 the brightness doesn't change.

Sounds like the notification isn't sent on hotkey press. Please attach your acpidump:

# acpidump > acpidump.txt
either to your original bug report or create a new one at:
https://bugzilla.kernel.org under category ACPI/Power-Video.

In some ways the system is able to understand that I'm pressing Fn+F6/Fn+F7. The pop-up indicator (this one
http://s1.postimg.org/dly8ordov/Brightness.png) is showing the brightness level adjustment. Unfortunately the brightness itself doesn't change.

Here is the acpidump.txt:
https://launchpadlibrarian.net/176842546/acpidump.txt

Best regards
Jeremie
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Ah, OK, I think I have misunderstood you.
So you already have a workaround with a xorg.conf file and everything works now, right?

If that is the case, the only thing that needs to be
done is to add your system into the video module's DMI table so that the acpi_video interface will not be created. This can be verified by adding video.use_native_backlight=1 to kernel cmdline.

Tried today the upstream kernel 3.16-rc2 and now the brightness shortcut "Fn+F6 Fn+F7" works out of the box without any workaround... great!

Just a question (sorry I'm not an expert, I don't know how these things work), will these changes also be made to the previous kernels like 3.13?

However thank you very much.

Jeremie
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Quoted 1 line · Jeremie Tamburini

will these changes also be made to the previous kernels like 3.13?

No chance for v3.13 as it lacks other supporting bits, sorry.

Quoted 4 lines · Aaron Lu

Quoted 1 line · Jeremie Tamburini

will these changes also be made to the previous kernels like 3.13?

No chance for v3.13 as it lacks other supporting bits, sorry.

Sorry to bother you again, a very last question!

The Ubuntu Kernel Team will try to fix the downstream 3.13 kernel, therefore I've been asked to perform the reverse bisect in order to discover which patch has made the change in the 3.16rc1 kernel.

But.. in this case the patch should be already known. Please, could you show which patch (or group of patches) has fixed the problem?

If not possible.. don't worry! I will go through the reverse bisect. It's just to speed up the whole process or at least get infos good to know in advance.

Thanks again
Jeremie

I think you will need at least:

commit fbc9fe1b4f222a7c575e3bd8e9defe59c6190a04

Author: Aaron Lu <[email protected]>
Date:   Fri Oct 11 21:27:45 2013 +0800

ACPI / video: Do not register backlight if win8 and native interface exists

commit 0e9f81d3b7cd0649a3bc437391b6a0650f98f844

Author: Aaron Lu <[email protected]>
Date:   Tue Feb 18 13:54:20 2014 +0800

ACPI / video: Add systems that should favour native backlight interface

commit 751109aad5834375ca9ed0dcfcd85a00cbf872b5

Author: Rafael J. Wysocki <[email protected]>
Date:   Thu Jun 5 22:47:35 2014 +0200

ACPI / video: Change the default for video.use_native_backlight to 1

Maybe others, you will need to figure them out.