Thread: usb not detected?

hello, 1 of usb drives stopped working in ubuntu. working before fresh install of 11.04 month ago, can't sure if used usb since then.

problem: have 2 usb slots, , 1 of them automounts expected, while other 1 not work. on nonworking slot, plug in usb storage device , device appears busy (light on, device says it's charging, etc), ubuntu cannot `see' it.

steps far:

1. wanted mount manually via command line. however, cannot find entry usb in /dev/ (i looked entries called sdb* , usb).

2. tried check fdisk, not there, either:

code:

~$ sudo fdisk -l    disk /dev/sda: 160.0 gb, 160041885696 bytes  255 heads, 63 sectors/track, 19457 cylinders  units = cylinders of 16065 * 512 = 8225280 bytes  sector size (logical/physical): 512 bytes / 512 bytes  i/o size (minimum/optimal): 512 bytes / 512 bytes  disk identifier: 0xf761d1b8       device boot      start         end      blocks   id  system  /dev/sda1   *           1        9014    72404923+   7  hpfs/ntfs  /dev/sda2            9015       10838    14650369    5  extended  /dev/sda3           10839       19326    68179860   83  linux  /dev/sda4           19327       19457     1052257+  82  linux swap / solaris  /dev/sda5            9015       10586    12619776   83  linux  /dev/sda6           10586       10838     2029568   82  linux swap / solaris

3. checked lshw see if hardware broken, assuming if broken, entry usb not appear on list. (is assumption correct?):

code:

~$ sudo lshw -c bus    *-core                           description: motherboard         product: 30cf         vendor: quanta         physical id: 0         version: 85.26         serial: none1       *-serial            description: smbus            product: mcp67 smbus            vendor: nvidia corporation            physical id: 1.1            bus info: pci@0000:00:01.1            version: a2            width: 32 bits            clock: 66mhz            capabilities: pm cap_list            configuration: driver=nforce2_smbus latency=0            resources: irq:10 ioport:3080(size=64) ioport:3040(size=64) ioport:3000(size=64)       *-usb:0            description: usb controller            product: mcp67 ohci usb 1.1 controller            vendor: nvidia corporation            physical id: 2            bus info: pci@0000:00:02.0            version: a2            width: 32 bits            clock: 66mhz            capabilities: pm ohci bus_master cap_list            configuration: driver=ohci_hcd latency=0 maxlatency=1 mingnt=3            resources: irq:18 memory:f6486000-f6486fff       *-usb:1            description: usb controller            product: mcp67 ehci usb 2.0 controller            vendor: nvidia corporation            physical id: 2.1            bus info: pci@0000:00:02.1            version: a2            width: 32 bits            clock: 66mhz            capabilities: debug pm ehci bus_master cap_list            configuration: driver=ehci_hcd latency=0 maxlatency=1 mingnt=3            resources: irq:22 memory:f6489000-f64890ff       *-usb:2            description: usb controller            product: mcp67 ohci usb 1.1 controller            vendor: nvidia corporation            physical id: b            bus info: pci@0000:00:04.0            version: a2            width: 32 bits            clock: 66mhz            capabilities: pm ohci bus_master cap_list            configuration: driver=ohci_hcd latency=0 maxlatency=1 mingnt=3            resources: irq:18 memory:f6487000-f6487fff       *-usb:3            description: usb controller            product: mcp67 ehci usb 2.0 controller            vendor: nvidia corporation            physical id: 4.1            bus info: pci@0000:00:04.1            version: a2            width: 32 bits            clock: 66mhz            capabilities: debug pm ehci bus_master cap_list            configuration: driver=ehci_hcd latency=0 maxlatency=1 mingnt=3            resources: irq:22 memory:f6489400-f64894ff    *-firewire         description: firewire (ieee 1394)         product: r5c832 ieee 1394 controller         vendor: ricoh co ltd         physical id: 5         bus info: pci@0000:02:05.0         version: 05         width: 32 bits         clock: 33mhz         capabilities: pm ohci bus_master cap_list         configuration: driver=firewire_ohci latency=64 maxlatency=4 mingnt=2         resources: irq:5 memory:f6100000-f61007ff

[edit: additional info]

4.

code:

~$ lsusb  bus 004 device 001: id 1d6b:0001 linux foundation 1.1 root hub  bus 003 device 002: id 045e:00e1 microsoft corp. wireless laser mouse 6000 reciever  bus 003 device 001: id 1d6b:0001 linux foundation 1.1 root hub  bus 002 device 002: id 04f2:b015 chicony electronics co., ltd vga 24fps uvc webcam  bus 002 device 001: id 1d6b:0002 linux foundation 2.0 root hub  bus 001 device 001: id 1d6b:0002 linux foundation 2.0 root hub

5. checked syslog:

code:

sep 14 14:16:25 ashley-laptop kernel: [13745.730114] hub 1-0:1.0: unable enumerate usb device on port 2  sep 14 14:16:25 ashley-laptop kernel: [13746.150114] hub 3-0:1.0: unable enumerate usb device on port 2

any advice out there?

so i'm pretty sure computer broken. may have been issue motherboard because several inputs broke @ around same time including cd-rom , power plug, , none of them worked in windows or when booting live cd.

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [SOLVED] usb not detected?

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