** Description changed:

  Hot plugging USB3.0 PCI Express card not possible
  Hot plugging USB devices in this Card is also not possible
  
  Only way to access the card and USB device: is powering on with PCI card AND 
USB devices connected.
  reconnect devices after this is not possible.
  
  Configuration:
  - Ubuntu 12.04 x64 (problem was also on older versions)
  - Lenovo T520
- - PCI USB3.0 Express Card BC618, NEC uPD720200 
- 
- More info:
- 
- Powering ON with USB3 express card AND USB3 HD connected:
- 
- PCI 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset 
Family USB Enhanced Host Controller #2 (rev 04)
- USB Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-             Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
-             Device 004: ID 0a5c:217f Broadcom Corp. Bluetooth Controller
-             Device 005: ID 04f2:b217 Chicony Electronics Co., Ltd
-             Device 006: ID 046d:c05f Logitech, Inc.
- 
- PCI 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset 
Family USB Enhanced Host Controller #1 (rev 04)
- USB Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-             Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
-             Device 003: ID 05ac:1297 Apple, Inc. iPhone 4
- 
- PCI 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller 
(rev 04)
- USB Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- 
- PCI 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller 
(rev 04)
- USB Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
-             Device 002: ID 1058:1042 Western Digital Technologies, Inc.
- 
- 
- # lspci -vs 0000:05:00.0
- 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller 
(rev 04) (prog-if 30 [XHCI])
-       Flags: bus master, fast devsel, latency 0, IRQ 19
-       Memory at f1d00000 (64-bit, non-prefetchable) [size=8K]
-       Capabilities: [50] Power Management version 3
-       Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
-       Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
-       Capabilities: [a0] Express Endpoint, MSI 00
-       Capabilities: [100] Advanced Error Reporting
-       Capabilities: [140] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
-       Capabilities: [150] Latency Tolerance Reporting
-       Kernel driver in use: xhci_hcd
- 
+ - PCI USB3.0 Express Card BC618, NEC uPD720200
  
  Re-Plugging the drive but olso other USB products, are not recognized
  
  in kern.log:
  May 31 09:54:48 roland kernel: [ 1441.460174] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:54:48 roland kernel: [ 1441.460244] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:54:49 roland kernel: [ 1442.066711] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:54:49 roland kernel: [ 1442.066773] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:02 roland kernel: [ 1455.659879] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:02 roland kernel: [ 1455.659938] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:03 roland kernel: [ 1456.250534] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:03 roland kernel: [ 1456.250595] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:05 roland kernel: [ 1458.940363] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:05 roland kernel: [ 1458.940429] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  
- 
- # lspci -vvs 0000:05:00.0
- 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller 
(rev 04) (prog-if 30 [XHCI])
-       Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop+ ParErr+ 
Stepping+ SERR+ FastB2B+ DisINTx+
-       Status: Cap+ 66MHz+ UDF+ FastB2B+ ParErr+ DEVSEL=?? >TAbort+ <TAbort+ 
<MAbort+ >SERR+ <PERR+ INTx+
-       Latency: 0
-       Interrupt: pin A routed to IRQ 19
-       Region 0: Memory at f1d00000 (64-bit, non-prefetchable) [size=8K]
-       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: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
-               Address: 0000000000000000  Data: 0000
-       Capabilities: [90] MSI-X: Enable- Count=8 Masked-
-               Vector table: BAR=0 offset=00001000
-               PBA: BAR=0 offset=00001080
-       Capabilities: [a0] Express (v2) Endpoint, MSI 00
-               DevCap: MaxPayload 128 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 5GT/s, Width x1, ASPM L0s L1, Latency L0 
<4us, L1 unlimited
-                       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 x1, 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: -6dB
-       Capabilities: [100 v1] Advanced Error Reporting
-               UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
-               UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
-               UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
-               CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
-               CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
-               AERCap: First Error Pointer: 14, GenCap- CGenEn- ChkCap- ChkEn-
-       Capabilities: [140 v1] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
-       Capabilities: [150 v1] Latency Tolerance Reporting
-               Max snoop latency: 0ns
-               Max no snoop latency: 0ns
-       Kernel driver in use: xhci_hcd
- 
- 
  Plugging out the USB3 Express card:
  no messages in kern.log !!
- # lspci -vvs 0000:05:00.0
- 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller 
(rev ff) (prog-if ff)
-       !!! Unknown header type 7f
-       Kernel driver in use: xhci_hcd
  
- Plugging back in the USB3 Express card:
- no messages in kern.log !!
- Still not recognizing any USB insertions.
- # lspci -vvs 0000:05:00.0
- 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller 
(rev 04) (prog-if 30 [XHCI])
-       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 19
-       Region 0: Memory at f1d00000 (64-bit, non-prefetchable) [disabled] 
[size=8K]
-       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: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
-               Address: 0000000000000000  Data: 0000
-       Capabilities: [90] MSI-X: Enable- Count=8 Masked-
-               Vector table: BAR=0 offset=00001000
-               PBA: BAR=0 offset=00001080
-       Capabilities: [a0] Express (v2) Endpoint, MSI 00
-               DevCap: MaxPayload 128 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 5GT/s, Width x1, ASPM L0s L1, Latency L0 
<4us, L1 unlimited
-                       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 x1, 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: -6dB
-       Capabilities: [100 v1] Advanced Error Reporting
-               UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
-               UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
-               UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
-               CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
-               CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
-               AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
-       Capabilities: [140 v1] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
-       Capabilities: [150 v1] Latency Tolerance Reporting
-               Max snoop latency: 0ns
-               Max no snoop latency: 0ns
-       Kernel driver in use: xhci_hcd
- --- 
+ ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  ArecordDevices:
-  **** List of CAPTURE Hardware Devices ****
-  card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
-    Subdevices: 1/1
-    Subdevice #0: subdevice #0
+  **** List of CAPTURE Hardware Devices ****
+  card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
+    Subdevices: 1/1
+    Subdevice #0: subdevice #0
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  roland     2949 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  roland     2949 F.... pulseaudio
  CRDA:
-  country NL:
-       (2402 - 2482 @ 40), (N/A, 20)
-       (5170 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
-       (5250 - 5330 @ 40), (N/A, 20), NO-OUTDOOR, DFS
-       (5490 - 5710 @ 40), (N/A, 27), DFS
+  country NL:
+   (2402 - 2482 @ 40), (N/A, 20)
+   (5170 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
+   (5250 - 5330 @ 40), (N/A, 20), NO-OUTDOOR, DFS
+   (5490 - 5710 @ 40), (N/A, 27), DFS
  Card0.Amixer.info:
-  Card hw:0 'PCH'/'HDA Intel PCH at 0xf2720000 irq 52'
-    Mixer name : 'Intel CougarPoint HDMI'
-    Components : 'HDA:14f1506e,17aa21cf,00100002 
HDA:80862805,80860101,00100000'
-    Controls      : 37
-    Simple ctrls  : 14
+  Card hw:0 'PCH'/'HDA Intel PCH at 0xf2720000 irq 52'
+    Mixer name : 'Intel CougarPoint HDMI'
+    Components : 'HDA:14f1506e,17aa21cf,00100002 
HDA:80862805,80860101,00100000'
+    Controls      : 37
+    Simple ctrls  : 14
  Card29.Amixer.info:
-  Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
unknown'
-    Mixer name : 'ThinkPad EC (unknown)'
-    Components : ''
-    Controls      : 1
-    Simple ctrls  : 1
+  Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
unknown'
+    Mixer name : 'ThinkPad EC (unknown)'
+    Components : ''
+    Controls      : 1
+    Simple ctrls  : 1
  Card29.Amixer.values:
-  Simple mixer control 'Console',0
-    Capabilities: pswitch pswitch-joined penum
-    Playback channels: Mono
-    Mono: Playback [on]
+  Simple mixer control 'Console',0
+    Capabilities: pswitch pswitch-joined penum
+    Playback channels: Mono
+    Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: LENOVO 4243W29
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic 
root=UUID=e5e65e59-f323-4df0-a813-dc393d2a4970 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  RelatedPackageVersions:
-  linux-restricted-modules-3.2.0-24-generic N/A
-  linux-backports-modules-3.2.0-24-generic  N/A
-  linux-firmware                            1.79
+  linux-restricted-modules-3.2.0-24-generic N/A
+  linux-backports-modules-3.2.0-24-generic  N/A
+  linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  Tags:  precise staging precise staging
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: Upgraded to precise on 2012-04-24 (37 days ago)
  UserGroups: adm admin audio cdrom dialout libvirtd lpadmin plugdev pulse 
pulse-access sambashare vboxusers video
  dmi.bios.date: 07/11/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8AET49WW (1.29 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4243W29
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: LBNL02200
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr8AET49WW(1.29):bd07/11/2011:svnLENOVO:pn4243W29:pvrThinkPadT520:rvnLENOVO:rn4243W29:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4243W29
  dmi.product.version: ThinkPad T520
  dmi.sys.vendor: LENOVO

** Description changed:

- Hot plugging USB3.0 PCI Express card not possible
- Hot plugging USB devices in this Card is also not possible
+ On my Lenovo T520 hot plugging USB3.0 PCI Express card not possible.
+ Hot plugging USB devices in this Card is also not possible.
  
- Only way to access the card and USB device: is powering on with PCI card AND 
USB devices connected.
- reconnect devices after this is not possible.
+ Only way to access the card and USB device: is powering on with PCI card
+ AND USB devices connected. Reconnecting devices after this is not
+ possible. Re-Plugging the drive but also other USB products, are not
+ recognized.
  
- Configuration:
- - Ubuntu 12.04 x64 (problem was also on older versions)
- - Lenovo T520
- - PCI USB3.0 Express Card BC618, NEC uPD720200
+ WORKAROUND: sudo echo acpiphp >> /etc/modules
+ Modify /etc/default/grub to have:
+ GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pciehp_force=1 pciehp_poll_mode=1"
  
- Re-Plugging the drive but olso other USB products, are not recognized
+ and run:
+ sudo update-grub
  
- in kern.log:
+ In kern.log:
  May 31 09:54:48 roland kernel: [ 1441.460174] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:54:48 roland kernel: [ 1441.460244] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:54:49 roland kernel: [ 1442.066711] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:54:49 roland kernel: [ 1442.066773] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:02 roland kernel: [ 1455.659879] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:02 roland kernel: [ 1455.659938] hub 3-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:03 roland kernel: [ 1456.250534] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:03 roland kernel: [ 1456.250595] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:05 roland kernel: [ 1458.940363] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  May 31 09:55:05 roland kernel: [ 1458.940429] hub 4-0:1.0: hub_port_status 
failed (err = -19)
  
  Plugging out the USB3 Express card:
  no messages in kern.log !!
  
  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  roland     2949 F.... pulseaudio
  CRDA:
   country NL:
    (2402 - 2482 @ 40), (N/A, 20)
    (5170 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
    (5250 - 5330 @ 40), (N/A, 20), NO-OUTDOOR, DFS
    (5490 - 5710 @ 40), (N/A, 27), DFS
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf2720000 irq 52'
     Mixer name : 'Intel CougarPoint HDMI'
     Components : 'HDA:14f1506e,17aa21cf,00100002 
HDA:80862805,80860101,00100000'
     Controls      : 37
     Simple ctrls  : 14
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
unknown'
     Mixer name : 'ThinkPad EC (unknown)'
     Components : ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: LENOVO 4243W29
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic 
root=UUID=e5e65e59-f323-4df0-a813-dc393d2a4970 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  StagingDrivers: mei
  Tags:  precise staging precise staging
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: Upgraded to precise on 2012-04-24 (37 days ago)
  UserGroups: adm admin audio cdrom dialout libvirtd lpadmin plugdev pulse 
pulse-access sambashare vboxusers video
  dmi.bios.date: 07/11/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8AET49WW (1.29 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4243W29
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: LBNL02200
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr8AET49WW(1.29):bd07/11/2011:svnLENOVO:pn4243W29:pvrThinkPadT520:rvnLENOVO:rn4243W29:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4243W29
  dmi.product.version: ThinkPad T520
  dmi.sys.vendor: LENOVO

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https://bugs.launchpad.net/bugs/1006765

Title:
  Hot plugging USB3.0 express card Not possible

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