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Message #31690
[Bug 1250051] Re: Backlight switched off at login screen
Danato, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (5ECN96WW). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.
For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.
Thank you for your understanding.
** Description changed:
Whenever I used to boot on ubuntu, my login screen was too dim, I
wouldn't know my computer was switched on until I increased the
brightness with my keyboard.
- I asked for a solution on Ubuntu IRC, and the user hitsujiTMO managed to
- create me a temporary solution that worked fine, and he recommended me
- to file this report.
+ WORKAROUND: #!/bin/sh
+ cap_bright() {
+ [ ! -d "$1" ] && return
+ MAX=$(cat "$1/max_brightness")
+ echo $MAX > "$1/brightness"
+ }
+ cap_bright "/sys/class/backlight/acpi_video1"
+ cap_bright "/sys/class/backlight/intel_backlight"
- The temporary fix was calling
- http://paste.ubuntu.com/6398879/
- from the display manager
-
- When I asked him if the problem was the same as this one:
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/765438
-
- He told me that, that's for a specific hardware and told me to run
- "lspci -nn"
-
- lspci-nn:
- http://paste.ubuntu.com/6399104/
-
- more info:
- lsb_release -rd:
- Description: Ubuntu 13.10
- Release: 13.10
-
-
- 1) cat /proc/version_signature > version.log
- version log:
- Ubuntu 3.11.0-13.20-generic 3.11.6
-
- 2) sudo lspci -vnvn > lspci-vnvn.log
- lspci-vnvn.log:
-
- 0:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor DRAM Controller [8086:0154] (rev 09)
- Subsystem: Lenovo Device [17aa:3977]
- 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 <?>
-
- 00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port [8086:0151] (rev 09) (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: 00003000-00003fff
- Memory behind bridge: d2000000-d30fffff
- 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: [88] Subsystem: Lenovo Device [17aa:3977]
- Capabilities: [80] 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: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
- Address: fee0f00c Data: 4181
- Capabilities: [a0] Express (v2) Root Port (Slot+), MSI 00
- DevCap: MaxPayload 256 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 #2, Speed 8GT/s, Width x16, ASPM L0s L1, Latency L0 <256ns, L1 <8us
- ClockPM- Surprise- LLActRep- BwNot+
- LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
- LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt+ ABWMgmt-
- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
- Slot #1, PowerLimit 75.000W; 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: 8GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -3.5dB
- 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] 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: [140 v1] Root Complex Link
- Desc: PortNumber=02 ComponentID=01 EltType=Config
- Link0: Desc: TargetPort=00 TargetComponent=01 AssocRCRB- LinkType=MemMapped LinkValid+
- Addr: 00000000fed19000
- Capabilities: [d94 v1] #19
- Kernel driver in use: pcieport
-
- 00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
- Subsystem: Lenovo Device [17aa:3901]
- 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 43
- Region 0: Memory at d3400000 (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
-
- 00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04) (prog-if 30 [XHCI])
- Subsystem: Lenovo Device [17aa:3977]
- 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 41
- Region 0: Memory at d3a00000 (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: 00000000fee0f00c Data: 4191
- Kernel driver in use: xhci_hcd
-
- 00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
- Subsystem: Lenovo Device [17aa:3977]
- 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 d3a14000 (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: 41d1
- Kernel driver in use: mei_me
-
- 00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04) (prog-if 20 [EHCI])
- Subsystem: Lenovo Device [17aa:3977]
- 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 d3a19000 (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 [0403]: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
- Subsystem: Lenovo Device [17aa:3977]
- 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 d3a10000 (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: 4122
- Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, 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 #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
- ClockPM- Surprise- LLActRep- BwNot-
- LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
- LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
- 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 [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 [8086:1e10] (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: 00002000-00002fff
- Memory behind bridge: d3900000-d39fffff
- 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, 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 #1, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
- 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-
- 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+ ARIFwd-
- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
- 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: Lenovo Device [17aa:3977]
- 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.1 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 [8086:1e12] (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=03, sec-latency=0
- Memory behind bridge: d3800000-d38fffff
- Prefetchable memory behind bridge: 00000000bfb00000-00000000bfbfffff
- 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, 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 #2, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
- 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 #1, 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+ ARIFwd-
- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
- 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: Lenovo Device [17aa:3977]
- 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 [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04) (prog-if 20 [EHCI])
- Subsystem: Lenovo Device [17aa:3977]
- 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 d3a18000 (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 [0601]: Intel Corporation HM76 Express Chipset LPC Controller [8086:1e59] (rev 04)
- Subsystem: Lenovo Device [17aa:3977]
- 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 [0106]: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04) (prog-if 01 [AHCI 1.0])
- Subsystem: Lenovo Device [17aa:3977]
- 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 42
- 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 d3a17000 (32-bit, non-prefetchable) [size=2K]
- Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
- Address: fee0300c Data: 41b1
- 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 [0c05]: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller [8086:1e22] (rev 04)
- Subsystem: Lenovo Device [17aa:3977]
- 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 10
- Region 0: Memory at d3a15000 (64-bit, non-prefetchable) [size=256]
- Region 4: I/O ports at 4040 [size=32]
-
- 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT 635M] [10de:0de3] (rev a1) (prog-if 00 [VGA controller])
- Subsystem: Lenovo Device [17aa:3901]
- 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 16
- Region 0: Memory at d2000000 (32-bit, non-prefetchable) [size=16M]
- Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
- Region 3: Memory at d0000000 (64-bit, prefetchable) [size=32M]
- Region 5: I/O ports at 3000 [size=128]
- Expansion ROM at d3000000 [disabled] [size=512K]
- Capabilities: [60] 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: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
- Address: 0000000000000000 Data: 0000
- Capabilities: [78] Express (v2) Endpoint, MSI 00
- DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, 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 512 bytes
- DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
- LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Latency L0 <256ns, L1 <4us
- ClockPM+ Surprise- LLActRep- BwNot-
- LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
- LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
- DevCap2: Completion Timeout: Not Supported, TimeoutDis+
- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
- Compliance De-emphasis: -6dB
- LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
- Capabilities: [b4] Vendor Specific Information: Len=14 <?>
- 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=ff
- Status: NegoPending- InProgress-
- Capabilities: [128 v1] Power Budgeting <?>
- Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
- Kernel driver in use: nouveau
-
- 02:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8162 Fast Ethernet [1969:1090] (rev 10)
- Subsystem: Lenovo Device [17aa:3979]
- 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 46
- Region 0: Memory at d3900000 (64-bit, non-prefetchable) [size=256K]
- Region 2: I/O ports at 2000 [size=128]
- 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: [58] Express (v1) Endpoint, MSI 00
- DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
- ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE+ FLReset-
- DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+
- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
- MaxPayload 128 bytes, MaxReadReq 512 bytes
- DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 unlimited, L1 unlimited
- 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-
- Capabilities: [c0] MSI: Enable+ Count=1/16 Maskable+ 64bit+
- Address: 00000000fee0f00c Data: 4142
- Masking: 0000fffe Pending: 00000000
- Capabilities: [d8] MSI-X: Enable- Count=16 Masked-
- Vector table: BAR=0 offset=00002000
- PBA: BAR=0 offset=00003000
- 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: [180 v1] Device Serial Number ff-40-f9-10-20-89-84-ff
- Kernel driver in use: alx
-
- 03:00.0 Network controller [0280]: Qualcomm Atheros AR9485 Wireless Network Adapter [168c:0032] (rev 01)
- Subsystem: Lenovo Device [17aa:3218]
- 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 17
- Region 0: Memory at d3800000 (64-bit, non-prefetchable) [size=512K]
- Expansion ROM at bfb00000 [disabled] [size=64K]
- Capabilities: [40] 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: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
- Address: 0000000000000000 Data: 0000
- Masking: 00000000 Pending: 00000000
- Capabilities: [70] Express (v2) Endpoint, MSI 00
- DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, 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 512 bytes
- DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <4us, L1 <64us
- 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-
- 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, 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] 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 00-00-00-00-00-00-00-00
- Kernel driver in use: ath9k
- ---
+ ---
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: danato 1777 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: danato 1777 F.... pulseaudio
CRDA:
- country MO:
- (2402 - 2482 @ 40), (N/A, 20)
- (5170 - 5250 @ 40), (3, 23)
- (5250 - 5330 @ 40), (3, 23), DFS
- (5735 - 5835 @ 40), (3, 30)
+ country MO:
+ (2402 - 2482 @ 40), (N/A, 20)
+ (5170 - 5250 @ 40), (3, 23)
+ (5250 - 5330 @ 40), (3, 23), DFS
+ (5735 - 5835 @ 40), (3, 30)
DistroRelease: Ubuntu 13.10
InstallationDate: Installed on 2013-11-05 (5 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: LENOVO 20138
MarkForUpload: True
Package: linux (not installed)
ProcFB:
- 0 nouveaufb
- 1 inteldrmfb
+ 0 nouveaufb
+ 1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic root=UUID=be58180f-8d25-4719-a049-001ce96e4bb2 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
RelatedPackageVersions:
- linux-restricted-modules-3.11.0-13-generic N/A
- linux-backports-modules-3.11.0-13-generic N/A
- linux-firmware 1.116
+ linux-restricted-modules-3.11.0-13-generic N/A
+ linux-backports-modules-3.11.0-13-generic N/A
+ linux-firmware 1.116
StagingDrivers: rts5139
Tags: saucy staging
Uname: Linux 3.11.0-13-generic x86_64
UpgradeStatus: Upgraded to saucy on 2013-11-06 (5 days ago)
UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo
dmi.bios.date: 12/19/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 5ECN95WW(V9.00)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo G780
dmi.modalias: dmi:bvnLENOVO:bvr5ECN95WW(V9.00):bd12/19/2012:svnLENOVO:pn20138:pvrLenovoG780:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoG780:
dmi.product.name: 20138
dmi.product.version: Lenovo G780
dmi.sys.vendor: LENOVO
** Tags removed: kernel-bug-exists-upstream login
** Tags added: bios-outdated-5ecn96ww kernel-bug-exists-upstream-v3.12 regression-potential
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Summary changed:
- Backlight switched off at login screen
+ [Lenovo Lenovo G780] Backlight switched off at login screen
** Summary changed:
- [Lenovo Lenovo G780] Backlight switched off at login screen
+ [Lenovo G780] Backlight switched off at login screen
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1250051
Title:
[Lenovo G780] Backlight switched off at login screen
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
Whenever I used to boot on ubuntu, my login screen was too dim, I
wouldn't know my computer was switched on until I increased the
brightness with my keyboard.
WORKAROUND: #!/bin/sh
cap_bright() {
[ ! -d "$1" ] && return
MAX=$(cat "$1/max_brightness")
echo $MAX > "$1/brightness"
}
cap_bright "/sys/class/backlight/acpi_video1"
cap_bright "/sys/class/backlight/intel_backlight"
---
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: danato 1777 F.... pulseaudio
CRDA:
country MO:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (3, 23)
(5250 - 5330 @ 40), (3, 23), DFS
(5735 - 5835 @ 40), (3, 30)
DistroRelease: Ubuntu 13.10
InstallationDate: Installed on 2013-11-05 (5 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: LENOVO 20138
MarkForUpload: True
Package: linux (not installed)
ProcFB:
0 nouveaufb
1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-13-generic root=UUID=be58180f-8d25-4719-a049-001ce96e4bb2 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
RelatedPackageVersions:
linux-restricted-modules-3.11.0-13-generic N/A
linux-backports-modules-3.11.0-13-generic N/A
linux-firmware 1.116
StagingDrivers: rts5139
Tags: saucy staging
Uname: Linux 3.11.0-13-generic x86_64
UpgradeStatus: Upgraded to saucy on 2013-11-06 (5 days ago)
UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo
dmi.bios.date: 12/19/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 5ECN95WW(V9.00)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo G780
dmi.modalias: dmi:bvnLENOVO:bvr5ECN95WW(V9.00):bd12/19/2012:svnLENOVO:pn20138:pvrLenovoG780:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoG780:
dmi.product.name: 20138
dmi.product.version: Lenovo G780
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
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References
