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Re: USB stopped working

Posted: Thu Oct 02, 2008 7:11 am
by Husse
This is the most difficult type of problem - worked, stopped working seemingly no hardware failure
Something must of course have been changed persistently, but what?
For starters run

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lsmod | grep -i usb
and see if any usb modules gets loaded

Re: USB stopped working

Posted: Fri Oct 03, 2008 12:32 pm
by Husse
I get
usbcore 146028 3 ehci_hcd,ohci_hcd
This means that there is one more module referring to usbcore in my computer (that's the 3 and 2)
It is also used by ehci-hcd in my computer but uhci-hcd in yours
The difference between these is that ehci_hcd is the usb 2 driver - uhci_hcd is the usb 1.1 driver
//Edit nov 2 by Husse / the usb 1.1 driver is more commonly ohci_hcd //
Try

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modprobe ehci_hcd 
and see if it helps

(Thunderstorm... strange we had a major thunderstorm yesterday which i s really odd in october, but no major power outage)

Re: USB stopped working

Posted: Fri Oct 03, 2008 4:02 pm
by Husse
Couldn't display "/media/Unns_disk". There is no application installed for this filetype.
It is interpreting the name of the disk as a name of a file - this is a kind of error you get now and then
With the disk connected try pmount /dev/xxx (in a terminal - no sudo)
where xxx is what the drive is called as dev perhaps sdb1
pmount ("policy mount") is a wrapper around the standard mount program
which permits normal users to mount removable devices without a match‐
ing /etc/fstab entry.

Re: USB stopped working

Posted: Mon Oct 06, 2008 2:32 pm
by Husse
Audio is something that should be easy to fix, preferrably working just out of the box.
Agreed - have you looked into a forum for Vista problems?
There's more than here.... :) :)

Re: USB stopped working

Posted: Sun Nov 02, 2008 5:52 pm
by Husse
My reply in the other topic was
Only on TTY1 means something special - but I don't know what
I saw reports on this error where different kernels or at least different distros gave different results
I'll take a look at the USB stuff
I think you have some hardware error but I'm not sure
This link is informative even if it speaks of a Thinkpad
http://community.livejournal.com/debian/335933.html
The drive you attach to USB is it externally powered or powered by USB?
In the later case you should try to use another cable and always use one of these cables that have two connectors in one end (to be plugged in two USB jacks that are on different USB ports - if they are on the same port you don't get any extra umph)
Talking of umph - go into the BIOS and check the voltages in your computer - I can't tell you where to look as that varies, but it's in there somewhere - the 5 V should be between 4.75 and 5.25 V
This is highly educational - I find a lot of questions to ask people with problematic USB drives....
And according to this link
https://bugs.launchpad.net/ubuntu/+sour ... +bug/39449
the kernel in Intrepid handles this better
If you google for

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over-current change on port 1
you get lots of hits interesting ones too
From what I read I get the impression this is faulty hardware - it may not be detected in Windows
And here is an example of this problem in Win XP
http://www.computing.net/answers/hardwa ... 50493.html