This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1077461
Title:
USB MTP device disconnected automatically
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
On connecting an android device in MTP mode to my ubuntu laptop, it
showed up as an MTP device. After some time it stopped showing the
device. On connecting and dis-connecting the device multiple times,
dmesg doesn't show any output (Didn't get the dmesg output this time).
Even after rebooting the device is not detected. Tried reboot multiple
times. dmesg shows that the device was detected and immediately
disconnected.
[ 2.505545] usb 2-1.4: new high-speed USB device number 4 using ehci_hcd
[ 2.599906] usb 2-1.4: New USB device found, idVendor=04e8, idProduct=6860
[ 2.599921] usb 2-1.4: New USB device strings: Mfr=2, Product=3,
SerialNumber=4
[ 2.599932] usb 2-1.4: Product: SAMSUNG_Android
[ 2.599939] usb 2-1.4: Manufacturer: SAMSUNG
[ 2.599946] usb 2-1.4: SerialNumber: 4df1a23921e85f5d
[ 2.652289] usb 2-1.4: USB disconnect, device number 4
Same thing works on windows dual boot on same machine. So don't think
it is a hardware issue. Also had the same issue on my office machine
as well. Was working properly on 12.04 on office machine.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-18-generic 3.5.0-18.29
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: sree 2640 F.... pulseaudio
/dev/snd/controlC0: sree 2640 F.... pulseaudio
Date: Sun Nov 11 01:16:30 2012
HibernationDevice: RESUME=/dev/sda6
InstallationDate: Installed on 2010-10-14 (758 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: LENOVO 20041
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-18-generic
root=UUID=3e51c732-6111-4252-a7c3-9a4697c1ace6 ro vga=792 splash
crashkernel=384M-2G:64M,2G-:128M splash
RelatedPackageVersions:
linux-restricted-modules-3.5.0-18-generic N/A
linux-backports-modules-3.5.0-18-generic N/A
linux-firmware 1.95
SourcePackage: linux
UpgradeStatus: Upgraded to quantal on 2012-09-07 (64 days ago)
dmi.bios.date: 01/29/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 29CN17WW(V1.05)
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: LENOVO
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnLENOVO:bvr29CN17WW(V1.05):bd01/29/2010:svnLENOVO:pn20041:pvrLenovoG460:rvnLENOVO:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: 20041
dmi.product.version: Lenovo G460
dmi.sys.vendor: LENOVO
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