apport information ** Attachment added: "CRDA.txt" https://bugs.launchpad.net/bugs/1528240/+attachment/4538322/+files/CRDA.txt
-- 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/1528240 Title: USB 3.0 hub has no power when USB storage device is plugged Status in linux package in Ubuntu: Confirmed Bug description: lsb_release -rd Description: Ubuntu 15.10 Release: 15.10 linux-image-4.2.0-17-generic When I plug USB 3.0 storage device(Transcend TS32GJF780 USB 3.0 32 Gb flash drive) into one of USB 3.0 ports in USB hub (DELL U2713HM monitor) and hub is connected to USB 3.0 port on my MB - no USB device is detected. lsusb shows no device is connected to hub ports: lsusb -t /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M |__ Port 2: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 6: Dev 4, If 0, Class=Video, Driver=uvcvideo, 480M |__ Port 6: Dev 4, If 1, Class=Video, Driver=uvcvideo, 480M |__ Port 6: Dev 4, If 2, Class=Audio, Driver=snd-usb-audio, 480M |__ Port 6: Dev 4, If 3, Class=Audio, Driver=snd-usb-audio, 480M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M |__ Port 3: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M Expected: hub device on Bus 04/Port1 has storage device listed. Workaround: if I check if power is supplied to the USB 3.0 hub device, I see: cat /sys/bus/usb/devices/usb4/4-1/power/control auto Then if I manually turn power on: echo on >/sys/bus/usb/devices/usb4/4-1/power/control USB 3.0 device appears and works. This problem is not reproducible if the same USB hub is attached to USB 2.0 port, so it is likely to be USB XHCI driver problem. --- ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: dad 3733 F.... pulseaudio /dev/snd/controlC1: dad 3733 F.... pulseaudio /dev/snd/controlC0: dad 3733 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 15.10 HibernationDevice: RESUME=UUID=ec75df3c-6d00-4f8f-b472-329453228f6c InstallationDate: Installed on 2015-01-18 (336 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: System manufacturer System Product Name NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic root=UUID=299f7f51-d713-41f7-9a41-8603a94788d4 ro quiet splash ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3 RelatedPackageVersions: linux-restricted-modules-4.2.0-17-generic N/A linux-backports-modules-4.2.0-17-generic N/A linux-firmware 1.149.3 RfKill: Tags: wily Uname: Linux 4.2.0-17-generic x86_64 UpgradeStatus: Upgraded to wily on 2015-12-19 (1 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo video _MarkForUpload: True dmi.bios.date: 05/06/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4701 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P9X79 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4701:bd05/06/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP9X79:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1528240/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp