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[Bug 1528303] Status changed to Confirmed

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Brad Figg <brad.figg@xxxxxxxxxxxxx>
Date: Mon, 21 Dec 2015 17:30:10 -0000
Reply-to: Bug 1528303 <1528303@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
This change was made by a bot.

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1528303

Title:
  Hotnkey Fn+f5 Fn+f6 won't change brightness on ASUS UX303UB

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  It seems that some function keys are not working on ASUS UX303UB
  Fn+f1 = working sleep
  Fn+f2 = not working airplane mode
  Fn+f3 = working keyboard backlight minus
  Fn+f4 = working keyboard backlight plus
  Fn+f5 = not working display backlight minus
  Fn+f6 = not working display backlight plus
  Fn+f7 = not working turn off display
  Fn+f8 = possibly working (was not able to test with external monitor) change projector or display
  Fn+f9 = working disable touchpad
  Fn+f10 = working mute
  Fn+f11 = working volume down
  Fn+f12 = working volume up
  Fn+a = not working automatic light sensor

  I've managed to hack some script that will change the brightness of the display
  however you have to allow write to /sys/class/backlight/intel_backlight/brightness for other users than root

  # cat backlight
  _______________ 
  #!/bin/bash
  value=`cat /sys/class/backlight/intel_backlight/brightness`
  case "$1" in
  	plus)
  		if [ 921 > $value ]; then
                          value=$((value+15))
                  else
  			value=936
                  fi
  		echo $value > /sys/class/backlight/intel_backlight/brightness
  		;;
  	minus)
  		if [ $value > 17 ]; then
  			value=$((value-15))
  		else
  			value=2
  		fi
  		echo $value > /sys/class/backlight/intel_backlight/brightness
  		;;
  	*)
  		echo "Usage: backlight {plus|minus}"
  		exit 1
  		;;
  esac

  exit 0
  ___________________________

  Using xbindkeys I can change the brightness using custom key shortcuts
  #cat .xbindkeysrc 
  _____________________________________
  #brightness - 15
  "/home/patrez/backlight minus"
  control+shift+z
  #brightness + 15
  "/home/patrez/backlight plus"
  control+shift+x
  _______________________________________

  I will attach the logs in next comments

  patrez@patrez-NB-LINUX:~$ cat /proc/version_signature
  Ubuntu 4.3.0-2.11-generic 4.3.0

  patrez@patrez-NB-LINUX:~$ sudo lspci -vnvn
  [sudo] password for patrez: 
  00:00.0 Host bridge [0600]: Intel Corporation Sky Lake Host Bridge/DRAM Registers [8086:1904] (rev 08)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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=10 <?>

  00:02.0 VGA compatible controller [0300]: Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07) (prog-if 00 [VGA controller])
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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 126
  	Region 0: Memory at dd000000 (64-bit, non-prefetchable) [size=16M]
  	Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M]
  	Region 4: I/O ports at f000 [size=64]
  	Expansion ROM at <unassigned> [disabled]
  	Capabilities: [40] Vendor Specific Information: Len=0c <?>
  	Capabilities: [70] Express (v2) 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-
  		DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF Not Supported
  		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
  	Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
  		Address: fee00018  Data: 0000
  	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: [100 v1] #1b
  	Capabilities: [200 v1] Address Translation Service (ATS)
  		ATSCap:	Invalidate Queue Depth: 00
  		ATSCtl:	Enable-, Smallest Translation Unit: 00
  	Capabilities: [300 v1] #13
  	Kernel driver in use: i915

  00:04.0 Signal processing controller [1180]: Intel Corporation Device [8086:1903] (rev 08)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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-
  	Interrupt: pin A routed to IRQ 16
  	Region 0: Memory at df220000 (64-bit, non-prefetchable) [size=32K]
  	Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
  		Address: 00000000  Data: 0000
  	Capabilities: [d0] 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: [e0] Vendor Specific Information: Len=0c <?>
  	Kernel driver in use: proc_thermal

  00:14.0 USB controller [0c03]: Intel Corporation Device [8086:9d2f] (rev 21) (prog-if 30 [XHCI])
  	Subsystem: ASUSTeK Computer Inc. Device [1043:201f]
  	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 124
  	Region 0: Memory at df210000 (64-bit, non-prefetchable) [size=64K]
  	Capabilities: [70] 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: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
  		Address: 00000000fee00258  Data: 0000
  	Kernel driver in use: xhci_hcd

  00:14.2 Signal processing controller [1180]: Intel Corporation Device [8086:9d31] (rev 21)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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 C routed to IRQ 255
  	Region 0: Memory at df236000 (64-bit, non-prefetchable) [size=4K]
  	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: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
  		Address: 00000000  Data: 0000

  00:16.0 Communication controller [0780]: Intel Corporation Device [8086:9d3a] (rev 21)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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 127
  	Region 0: Memory at df235000 (64-bit, non-prefetchable) [size=4K]
  	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: 00000000fee00298  Data: 0000
  	Kernel driver in use: mei_me

  00:17.0 SATA controller [0106]: Intel Corporation Device [8086:9d03] (rev 21) (prog-if 01 [AHCI 1.0])
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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 125
  	Region 0: Memory at df230000 (32-bit, non-prefetchable) [size=8K]
  	Region 1: Memory at df234000 (32-bit, non-prefetchable) [size=256]
  	Region 2: I/O ports at f090 [size=8]
  	Region 3: I/O ports at f080 [size=4]
  	Region 4: I/O ports at f060 [size=32]
  	Region 5: Memory at df233000 (32-bit, non-prefetchable) [size=2K]
  	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
  		Address: fee00278  Data: 0000
  	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
  	Kernel driver in use: ahci

  00:1c.0 PCI bridge [0604]: Intel Corporation Device [8086:9d10] (rev f1) (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
  	Interrupt: pin A routed to IRQ 122
  	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
  	I/O behind bridge: 0000e000-0000efff
  	Memory behind bridge: de000000-df0fffff
  	Prefetchable memory behind bridge: 00000000c0000000-00000000d1ffffff
  	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 256 bytes, PhantFunc 0
  			ExtTag- RBE+
  		DevCtl:	Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
  			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
  			MaxPayload 256 bytes, MaxReadReq 128 bytes
  		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
  		LnkCap:	Port #1, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L0s <1us, L1 <16us
  			ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+
  		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled+ CommClk+
  			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
  		LnkSta:	Speed 8GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
  		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
  			Slot #4, 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: Range ABC, TimeoutDis+, LTR+, OBFF Not Supported ARIFwd+
  		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis+, LTR-, OBFF Disabled ARIFwd-
  		LnkCtl2: Target Link Speed: 8GT/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: fee00218  Data: 0000
  	Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	Capabilities: [a0] 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: [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] Access Control Services
  		ACSCap:	SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans-
  		ACSCtl:	SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
  	Capabilities: [200 v1] L1 PM Substates
  		L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
  			  PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
  	Capabilities: [220 v1] #19
  	Kernel driver in use: pcieport

  00:1c.5 PCI bridge [0604]: Intel Corporation Device [8086:9d15] (rev f1) (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
  	Interrupt: pin B routed to IRQ 123
  	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
  	Memory behind bridge: df100000-df1fffff
  	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 256 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 #6, Speed 8GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <16us
  			ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+
  		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 #9, 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 ABC, 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: fee00238  Data: 0000
  	Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	Capabilities: [a0] 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: [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] Access Control Services
  		ACSCap:	SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans-
  		ACSCtl:	SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
  	Capabilities: [200 v1] L1 PM Substates
  		L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
  			  PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
  	Capabilities: [220 v1] #19
  	Kernel driver in use: pcieport

  00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:9d48] (rev 21)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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

  00:1f.2 Memory controller [0580]: Intel Corporation Device [8086:9d21] (rev 21)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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
  	Region 0: Memory at df22c000 (32-bit, non-prefetchable) [size=16K]

  00:1f.3 Audio device [0403]: Intel Corporation Device [8086:9d70] (rev 21)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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: 32
  	Interrupt: pin A routed to IRQ 129
  	Region 0: Memory at df228000 (64-bit, non-prefetchable) [size=16K]
  	Region 4: Memory at df200000 (64-bit, non-prefetchable) [size=64K]
  	Capabilities: [50] Power Management version 3
  		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: 00000000fee002b8  Data: 0000
  	Kernel driver in use: snd_hda_intel

  00:1f.4 SMBus [0c05]: Intel Corporation Device [8086:9d23] (rev 21)
  	Subsystem: ASUSTeK Computer Inc. Device [1043:1b1d]
  	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 A routed to IRQ 255
  	Region 0: Memory at df232000 (64-bit, non-prefetchable) [size=256]
  	Region 4: I/O ports at f040 [size=32]

  01:00.0 3D controller [0302]: NVIDIA Corporation GM108M [GeForce 940M] [10de:1347] (rev ff) (prog-if ff)
  	!!! Unknown header type 7f

  02:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095a] (rev 59)
  	Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [8086:5110]
  	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 128
  	Region 0: Memory at df100000 (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: 00000000fee002d8  Data: 0000
  	Capabilities: [40] Express (v2) 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 L1, Exit Latency L0s <4us, L1 <32us
  			ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
  		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 B, TimeoutDis+, LTR+, OBFF Via WAKE#
  		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: -3.5dB, EqualizationComplete-, EqualizationPhase1-
  			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
  	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 dc-53-60-ff-ff-2b-4c-a6
  	Capabilities: [14c v1] Latency Tolerance Reporting
  		Max snoop latency: 3145728ns
  		Max no snoop latency: 3145728ns
  	Capabilities: [154 v1] L1 PM Substates
  		L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
  			  PortCommonModeRestoreTime=30us PortTPowerOnTime=60us
  	Kernel driver in use: iwlwifi

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.3.0-2-generic 4.3.0-2.11 [modified: boot/vmlinuz-4.3.0-2-generic]
  ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0
  Uname: Linux 4.3.0-2-generic x86_64
  ApportVersion: 2.19.2-0ubuntu9
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  patrez     1699 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Dec 21 18:06:26 2015
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=b541ad3f-8e38-403f-b43a-62a4cacac17e
  InstallationDate: Installed on 2015-12-18 (2 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151209)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0bda:57cb Realtek Semiconductor Corp. 
   Bus 001 Device 002: ID 1532:000a Razer USA, Ltd 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. UX303UB
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.3.0-2-generic.efi.signed root=UUID=dedc82c7-c836-4a7a-8c8e-f79ebe574958 ro splash quiet "acpi_osi=!Windows 2012" vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.3.0-2-generic N/A
   linux-backports-modules-4.3.0-2-generic  N/A
   linux-firmware                           1.154
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/27/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX303UB.202
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX303UB
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX303UB.202:bd08/27/2015:svnASUSTeKCOMPUTERINC.:pnUX303UB:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX303UB:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX303UB
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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References

[Bug 1528303] [NEW] Hotnkey Fn+f5 Fn+f6 won't change brightness on ASUS UX303UB
From: patrez, 2015-12-21