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Old 09-03-2009, 02:16 PM   #1
Qysik
LQ Newbie
 
Registered: Sep 2009
Posts: 5

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Ubuntu, can't detect USB devices


Hi, I've just migrated from Windows Xp to Ubuntu 9.04. But Ubuntu won't detect the any of my USB devices which XP could detect. After looking on Google I haven't been able to find a solution.


Motherboard:

Vendor: Phoenix Technologies, LTD
Version: 6.00 PG
Release Date: 07/28/2005
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 512 kB
Characteristics:
PCI is supported
PNP is supported
APM is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
BIOS ROM is socketed
EDD is supported

'lsusb' does not show any USB devices.

Cheers for any help here.
 
Old 09-03-2009, 03:02 PM   #2
jimjones
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Registered: May 2005
Location: Belgium
Distribution: slackware 10.2
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here's what you can do :

check /var/log/messages for any errors with usb during boot

try unloading - loading the usb module (i dont know its name - try modprobe -l to find the name)

and ...

get the exact name of your motherboard and google together with usb or no usb or something
 
Old 09-03-2009, 04:17 PM   #3
Qysik
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Registered: Sep 2009
Posts: 5

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Thanks. I looked for any error messages and there are none. When looking at lsmod I can't find any USB modules, so could this be a problem with the install? Is it possible to load the USB modules without reinstalling from scratch?

cheers
 
Old 09-03-2009, 07:56 PM   #4
vansch76
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Registered: Aug 2007
Location: Asheville, NC, USA
Distribution: Ubunutu 10.04
Posts: 137

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Hi Q

look at this link

http://www.linuxquestions.org/questi...ount+usb+drive

this person was having the same problem and it seems to have solved his issue

Vanessa
 
Old 09-04-2009, 04:10 AM   #5
jimjones
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Registered: May 2005
Location: Belgium
Distribution: slackware 10.2
Posts: 43

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the name of the module is ohci-hcd

try removing - adding and see with dmesg what it says

it should look something like this :
<code>
ohci_hcd 0000:00:07.4: remove, state 1
usb usb1: USB disconnect, address 1
usb 1-2: USB disconnect, address 2
ohci_hcd 0000:00:07.4: USB bus 1 deregistered
ohci_hcd 0000:00:07.4: PCI INT D disabled
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd 0000:00:07.4: PCI INT D -> Link[LNKD] -> GSI 10 (level, low) -> IRQ 10
ohci_hcd 0000:00:07.4: OHCI Host Controller
ohci_hcd 0000:00:07.4: new USB bus registered, assigned bus number 1
ohci_hcd 0000:00:07.4: irq 10, io mem 0xeffff000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 4 ports detected
usb 1-2: new full speed USB device using ohci_hcd and address 2
usb 1-2: configuration #1 chosen from 1 choice
usb 1-2: reset full speed USB device using ohci_hcd and address
</code>

ofcourse i am assuming you are having problems with more then just an usb-stick not showing up as you said none of your usb devices work (tried a mouse?)

bonne chance

Last edited by jimjones; 09-04-2009 at 04:15 AM.
 
Old 09-07-2009, 06:30 AM   #6
Qysik
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Registered: Sep 2009
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Hi, I've just got back to the computer now after the weekend, so I'm gonna have a look at this now, thanks for the advice.
 
Old 09-07-2009, 07:26 AM   #7
Qysik
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Registered: Sep 2009
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Hi, again. I successfully removed the USB module using the 'rmmod' command. However I'm having trouble find the module to reinstall it it with as I can't get to the module through the terminal, I get a 'no such file or directory' when I try

'cd lib/modules/2.6.28-6-386/kernal/drivers/usb' even though the file system shows these files. It thinks its the 'kernal' doc thats not letting me through.

I was following this http://articles.techrepublic.com.com...1-5031591.html tutorial.

Am I doing the right thing here?

cheers.
 
Old 09-10-2009, 10:34 AM   #8
Qysik
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Registered: Sep 2009
Posts: 5

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