Public bug reported:
It seems that problem occures when loading xhci_hcd, since I cannot find
any error related on xhci_hcd when USB devices are well recognized
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-35-generic 3.13.0-35.62
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
Uname: Linux 3.13.0-35-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lightdm 1716 F.... pulseaudio
ctelmo 2411 F.... pulseaudio
Date: Thu Sep 18 18:41:52 2014
HibernationDevice: RESUME=UUID=667041ef-6a04-4fc5-aeba-24d4c6e29279
InstallationDate: Installed on 2014-09-10 (7 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: TOSHIBA SATELLITE NB10t-A-10F
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic.efi.signed
root=UUID=25fc8b0d-6bfc-4cef-935e-fd1ae1fca4b6 ro quiet splash vt.handoff=7
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.13.0-35-generic N/A
linux-backports-modules-3.13.0-35-generic N/A
linux-firmware 1.127.5
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: zram
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/19/2013
dmi.bios.vendor: TOSHIBA
dmi.bios.version: 1.20
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: MA10
dmi.board.vendor: TOSHIBA
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnTOSHIBA:bvr1.20:bd12/19/2013:svnTOSHIBA:pnSATELLITENB10t-A-10F:pvrPU141E-01K029EP:rvnTOSHIBA:rnMA10:rvrTobefilledbyO.E.M.:cvnTOSHIBA:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: SATELLITE NB10t-A-10F
dmi.product.version: PU141E-01K029EP
dmi.sys.vendor: TOSHIBA
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug staging trusty
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https://bugs.launchpad.net/bugs/1371223
Title:
sometimes no USB Device is recognized
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