Newer versions of the linux kernel don't shut off the power on an Acer Aspire E11 laptop. I have a problem getting an Acer Aspire E11 (more specifically, Acer e3-112 C43A) to shut off. This laptop has 4GB RAM, Intel N2940, Intel chip set and Insyde Bios H20, V1.08 from 08/20/2014. I seem to have localized the problem as a change in some recent kernels, perhaps in the implementation of reboot(). In Xubuntu I find that shutoff is carried out by /etc/rc0.d/S90halt, and this script executes normally up to a command realized as "halt -d -f -i -p -h". When power is turned off, the halt command normally prints a number in brackets to the console (so fast that I can't write it down). In versions of Xubuntu, the kernel shuts off the disk drive and halts without shutting off power, and this last line does not appear on the shut-down console. Other distributions have different behavior, as noted below. To localize the problem, I tried starting various distributions of various ages from various primary devices (hard disk, usb, sd card reader). The type of primary device had no effect, but the age of the kernel does. The bug seems to appear around kernel version 3.16 and thereafter. Distributions with kernels 3.2 to 3.16 shut off normally, while other distributions with kernels 3.16 to 4.2 fail to turn off the power. It's not just in Debian/Ubuntu; the problem appears in Fedora as well. With Xubuntu 14.04, after updating to kernel 3.13.0-24-generic, power turns off only if I eliminate "quiet splash" from GREMB_CDMLINE_LINUX_DEFAULT in /etc/default/grub. A detailed protocol of my testing follows. **** NO SHUT-OFF PROBLEM: ********************************************** Here are Linux distributions installed to the hard disk that shut down normally: Xubuntu 12.04.4 installed on the internal SATA interface, to a SSD Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: KINGSTON SV300S3 Rev: 603A Type: Direct-Access ANSI SCSI revision: 05 # uname -a Linux E3-112 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:40:43 UTC 2013 i686 i686 i386 GNU/Linux Also (after updates) # uname -a Linux E3-112 3.2.0-95-generic-pae #135-Ubuntu SMP Tue Nov 10 14:02:19 UTC 2015 i686 i386 GNU/Linux --------------------------------------------------------------- Kubuntu 14.04 installed on the internal SATA interface, Samsung mechanical HD cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST500LT012-1DG14 Rev: 0001 Type: Direct-Access ANSI SCSI revision: 05 # uname -a Linux E3112 3.13.0-58-generic #97-Ubntu SMP Wed Jul 8 02:56:50 UTC 2015 i686 i686 i686 GNU/Linux -------------------------------------------------------- Debian 8.2.0 (without updates) (scsi0, Samsung HD drive as above) Linux DEBE3-112 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt11+deb8u3 (2015-08-04) i686 GNU/Linux _____________________________________________________________ Here are live Linuxes started from a usb memory stick / sd card that, on my Acer Aspire E11, shut down normally: Xubuntu 12.04.4 live from usb (scsi2) cat /proc/scsi/scsi Attached devices: Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: Verbatim Model: STORE N GO Rev: PMAP Type: Direct-Access ANSI SCSI revision: 02 # uname -a Linux xubuntu 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:40:43 UTC 2013 i686 i686 i386 GNU/Linux ------------------------------------------------------------ Fedora 18 live from usb (scsi2) # uname -a Linux localhost 3.6.10-4.fc18.i686 #1 SMP Tue Dec 11 18:24:49 UTC 2012 i686 i686 i386 GNU/Linux ------------------------------------------------------------- System Rescue CD live from SD card (scsi0: NOT the ST500 hard disk! Card reader appears on same bus.) cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST500LT012-1DG14 Rev: 0001 Type: Direct-Access ANSI SCSI revision: 05 # uname -a Linux sysresccd 3.14.31-std451-amd64 #2 SMP Wed Feb 5 07:55:05 UTC 2015 x86_64 Intel(R) Celeron CPU N2940 @ 1.83 GH GenuineIntel GNU/Linux ------------------------------------------------------------- Debian 8.2.0 live from usb (scsi2, as above) # uname -a Linux debian 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt11-1+deb8u3 (2015-08-04) i686 GNU/Linux **** WITH SHUT-OFF PROBLEM: *********************************************** Here are distributions installed to the hard disk (scsi0) that halt but do not turn off the power: Ubuntu 15.04 (no updates) from hard disk (scsi0) # uname -a Linux bruceu3-Aspire-E3-112 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:01 UTC 2015 i686 i686 i686 GNU/Linux -------------------------------------------------------- Fedora 4.3.3 Workstation from hard disk (scsi0) # uname -a Linux localhost.localdomain 4.2.3-300.fc23.i686 #1 SMP Mon Oct 5 16:26:47 UTC 2015 i686 i686 i686 GNU/Linux Fedora , turn-off console: [ 1.774353] Failed to find cpu0 device node __________________________________________________________ Here are live Linuxes run from a usb memory stick / sd card that halt but do not turn off the power: Debian 8.2 live from usb memory stick (scsi2, as above) $ uname -a Linux debian 3.16.0-4-586 #1 Debian 3.16.7-ckt11-1+deb8u3 (2015-08-04) i686 GNU/Linux --------------------------------------------------------- Linux Mint 17.03 live from SD card (scsi0, as above) cat /proc/scsi/scsi # uname -a Linux mint 3.19.0-32-generic #37~14.04.1-ubuntu SMP Thu Oct 22 09:37:25 UTC 2015 i686 i686 i686 GNU/Linux -------------------------------------------------------- Linux Mint 17.03 live from a usb memory stick (scsi2, as above) # uname -a Linux mint 3.19.0-32-generic #37~14.04.1-Ubuntu SMP Thu Oct 22 09:37:25 UTC 2015 i686 i686 i686 GNU/Linux --------------------------------------------------------- Xubuntu 15.10 live from usb memory stick (scsi2, as above) # uname -a Linux xubuntu 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 14:46:51 UTC 2015 i686 i686 i686 GNU/Linux --------------------------------------------------------- Fedora 23 Workstation live from usb memory stick (scsi2v, as above) # uname -a Linux localhost 4.2.3-300.fc23.i686 #1 SMP Mon Oct 5 16:26:47 UTC 2015 i686 i686 i386 GNU/Linux Fedora 23, turn-off console: [ 2.455819 Failed to find cpu0 device node [ 2.752368 ehci-pci 0000:00:1d.0 port 1 reset error -110 [ 5.797329 sd 2:0:0:0 [sdb] No Caching mode page found [ 5.797337 sd 2:0:0:0 [sdb] Assuming drive cache: write through ************************************************************ SYSTEM INFO FOR THE COMPUTER Acer Aspire E3 11 $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 55 model name : Intel(R) Celeron(R) CPU N2940 @ 1.83GHz stepping : 8 microcode : 0x829 cpu MHz : 498.000 cache size : 1024 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 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 nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid smep erms bogomips : 3666.66 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 : 55 model name : Intel(R) Celeron(R) CPU N2940 @ 1.83GHz stepping : 8 microcode : 0x829 cpu MHz : 498.000 cache size : 1024 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 4 apicid : 2 initial apicid : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 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 nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid smep erms bogomips : 3666.65 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 : 55 model name : Intel(R) Celeron(R) CPU N2940 @ 1.83GHz stepping : 8 microcode : 0x829 cpu MHz : 498.000 cache size : 1024 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 4 apicid : 4 initial apicid : 4 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 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 nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid smep erms bogomips : 3666.67 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 : 55 model name : Intel(R) Celeron(R) CPU N2940 @ 1.83GHz stepping : 8 microcode : 0x829 cpu MHz : 498.000 cache size : 1024 KB physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 6 initial apicid : 6 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 11 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 nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer rdrand lahf_lm 3dnowprefetch ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid smep erms bogomips : 3666.68 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: bruce3@E3-112:~$ cat /proc/modules usbhid 41937 0 - Live 0x00000000 hid 81731 1 usbhid, Live 0x00000000 nls_iso8859_1 12617 1 - Live 0x00000000 nls_cp437 12751 1 - Live 0x00000000 vfat 17308 1 - Live 0x00000000 fat 55605 1 vfat, Live 0x00000000 mmc_block 26776 2 - Live 0x00000000 joydev 17393 0 - Live 0x00000000 ath3k 12825 0 - Live 0x00000000 btusb 17948 2 - Live 0x00000000 acer_wmi 23612 0 - Live 0x00000000 sparse_keymap 13658 1 acer_wmi, Live 0x00000000 snd_hda_codec_realtek 174385 1 - Live 0x00000000 uvcvideo 67203 0 - Live 0x00000000 videodev 86588 1 uvcvideo, Live 0x00000000 snd_hda_intel 32719 4 - Live 0x00000000 snd_hda_codec 109562 2 snd_hda_codec_realtek,snd_hda_intel, Live 0x00000000 snd_hwdep 13276 1 snd_hda_codec, Live 0x00000000 snd_pcm 80916 2 snd_hda_intel,snd_hda_codec, Live 0x00000000 bnep 17830 2 - Live 0x00000000 rfcomm 38139 16 - Live 0x00000000 bluetooth 158447 24 ath3k,btusb,bnep,rfcomm, Live 0x00000000 parport_pc 32114 0 - Live 0x00000000 ppdev 12849 0 - Live 0x00000000 snd_seq_midi 13132 0 - Live 0x00000000 snd_rawmidi 25424 1 snd_seq_midi, Live 0x00000000 snd_seq_midi_event 14475 1 snd_seq_midi, Live 0x00000000 psmouse 87142 0 - Live 0x00000000 serio_raw 13027 0 - Live 0x00000000 snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event, Live 0x00000000 snd_timer 28931 2 snd_pcm,snd_seq, Live 0x00000000 snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x00000000 snd 62250 17 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device, Live 0x00000000 video 19115 0 - Live 0x00000000 soundcore 14635 1 snd, Live 0x00000000 snd_page_alloc 14108 2 snd_hda_intel,snd_pcm, Live 0x00000000 wmi 18744 1 acer_wmi, Live 0x00000000 mac_hid 13077 0 - Live 0x00000000 lp 17455 0 - Live 0x00000000 parport 40930 3 parport_pc,ppdev,lp, Live 0x00000000 r8169 56396 0 - Live 0x00000000 sdhci_pci 18324 0 - Live 0x00000000 sdhci 28241 1 sdhci_pci, Live 0x00000000 sudo lspci -vvv 00:00.0 Host bridge: Intel Corporation ValleyView SSA-CUnit (rev 0e) Subsystem: Acer Incorporated [ALI] Device 0933 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- [disabled] 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: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [b0] Vendor Specific Information: Len=07 00:12.0 SD Host controller: Intel Corporation ValleyView SDIO Controller (rev 0e) (prog-if 01) Subsystem: Acer Incorporated [ALI] Device 0933 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- 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 <4us 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 x0, 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 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Acer Incorporated [ALI] Device 0933 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- Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.1 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e) (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- SERR- TAbort- 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 <4us 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 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Acer Incorporated [ALI] Device 0933 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- Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.2 PCI bridge: Intel Corporation ValleyView PCI Express Root Port (rev 0e) (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- SERR- TAbort- 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 #3, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <4us 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 #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+ 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 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [90] Subsystem: Acer Incorporated [ALI] Device 0933 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- Kernel driver in use: pcieport Kernel modules: shpchp 00:1d.0 USB controller: Intel Corporation ValleyView USB Enhanced Host Controller (rev 0e) (prog-if 20 [EHCI]) Subsystem: Acer Incorporated [ALI] Device 0933 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- TAbort- SERR- 00:1f.3 SMBus: Intel Corporation ValleyView SMBus Controller (rev 0e) Subsystem: Acer Incorporated [ALI] Device 0933 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- TAbort- SERR- TAbort- SERR-