unable to enumerate USB device: APCUSBD

[Tommy Trussell]

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On Thu, Sep 6, 2012 at 10:20 AM, <spoonplug36 at comcast.net> wrote:

> all this is beyond me, didn't know what I was getting into when I signed
> up.   How do I stop getting all these emails?
>
>
>
> ------------------------------
> *From: *"Tommy Trussell" <tommy.trussell at gmail.com>
> *To: *"bill" <william at techservsys.com>
> *Cc: *"Ubuntu user technical support, not for general discussions" <
> ubuntu-users at lists.ubuntu.com>
> *Sent: *Thursday, September 6, 2012 9:52:57 AM
> *Subject: *Re: unable to enumerate USB device: APCUSBD
>
>
>
>
> On Thu, Sep 6, 2012 at 7:07 AM, bill <william at techservsys.com> wrote:
>
>>  On 9/5/2012 12:32 PM, Tommy Trussell wrote:
>>
>> On Sat, Sep 1, 2012 at 9:12 AM, william drescher <william at techservsys.com
>> > wrote:
>>
>>> I have a APC 750 with the usb port connected to a 12.04 Unbutu system.
>>>
>>> After about a day of operation I start getting the following error:
>>>
>>> Aug 31 23:13:57 ubuntu3 kernel: [128564.632031] hub 2-0:1.0: unable to
>>> enumerate USB device on port 3
>>>
>>> Checking the syslog I find the following repeated over and over, with
>>> the device number going up by one each time:
>>>
>>> Aug 31 23:13:25 ubuntu3 kernel: [128532.951308] hub 2-0:1.0: port 3
>>> disabled by hub (EMI?), re-enabling...
>>> Aug 31 23:13:25 ubuntu3 kernel: [128532.952063] usb 2-3: USB disconnect,
>>> device number 110
>>> Aug 31 23:13:25 ubuntu3 kernel: [128532.952267] usb 2-3: ctrl urb status
>>> -62 received
>>> Aug 31 23:13:25 ubuntu3 kernel: [128533.260039] usb 2-3: new low-speed
>>> USB device number 111 using ohci_hcd
>>> ...
>>> Aug 31 23:13:27 ubuntu3 kernel: [128534.796543] generic-usb
>>> 0003:051D:0002.006F: hiddev0,hidraw2: USB HID v1.10 Device [American Power
>>> Conversion Smart-UPS 750 FW:651.13.D USB FW:7.3] on
>>> usb-0000:00:02.0-3/input0
>>> Aug 31 23:13:33 ubuntu3 apcupsd[4213]: Communications with UPS restored.
>>> ...
>>> Aug 31 23:13:56 ubuntu3 kernel: [128563.596881] hub 2-0:1.0: port 3
>>> disabled by hub (EMI?), re-enabling...
>>> Aug 31 23:13:56 ubuntu3 kernel: [128563.597605] usb 2-3: USB disconnect,
>>> device number 111
>>> Aug 31 23:13:56 ubuntu3 kernel: [128563.597838] usb 2-3: ctrl urb status
>>> -62 received
>>> Aug 31 23:13:56 ubuntu3 kernel: [128563.900049] usb 2-3: new low-speed
>>> USB device number 112 using ohci_hcd
>>> Aug 31 23:13:56 ubuntu3 kernel: [128564.137852] usb 2-3: can't set
>>> config #1, error -62
>>> Aug 31 23:13:56 ubuntu3 kernel: [128564.138747] hub 2-0:1.0: port 3
>>> disabled by hub (EMI?), re-enabling...
>>> Aug 31 23:13:56 ubuntu3 kernel: [128564.139398] usb 2-3: USB disconnect,
>>> device number 112
>>>
>>> until it reverts to this error message
>>>
>>>
>>> Aug 31 23:13:56 ubuntu3 kernel: [128564.384041] hub 2-0:1.0: unable to
>>> enumerate USB device on port 3
>>> Aug 31 23:13:57 ubuntu3 kernel: [128564.632031] hub 2-0:1.0: unable to
>>> enumerate USB device on port 3
>>> Aug 31 2
>>>
>>> with the last message repeated 3 times a second after that.
>>>
>>> Does this suggest a problem with the APC unit ? (it is directly
>>> connected to the computer port) or a ubuntu issue ?
>>>
>>> bill
>>>
>>>
>>
>>  I was curious about your question so I did a couple of Google searches
>> and found a lot of reports of similar issues. I also have an APC UPS but I
>> don't have anything connected to its USB port.
>>
>>  1) Was your Ubuntu 12.04 system upgraded from a previous version or a
>> new install? A few of the reports indicated a problem with an old
>> unsupported driver that could be disabled to eliminate the error.
>>
>> it was an upgrade.
>>
>>
>>  2) For diagnostic purposes, you might try connecting the UPS via a USB
>> hub to see if the error messages go away. You might also try connecting a
>> USB keyboard or mouse to the system (if you aren't using them already) to
>> see if you get a similar message. Some hardware apparently has trouble
>> supporting old slow USB devices.
>>
>> good idea
>>
>>
>> 3) Since you have the UPS connected to the USB port, do you also have
>> some  special software that is monitoring it, or does the UPS port send a
>> generic "power down" message after a period of time? If you are running
>> some special software you might check to make sure it is compatible with
>> Ubuntu 12.04. Have you recently tested the UPS shutdown by pulling the plug?
>>
>> I use APCUPSD.  It works fine on the other 2 servers that I just upgraded.
>> If the UPS is not communicating, I can not test the shutdown.
>>
>> The thing that bothers me the most is the "port 3 disabled by hub (EMI?)"
>> which makes me suspect the UPS
>>
>>
>>  I don't have answers that might fix your issues, but I hope those
>> questions (plus some searches of your own) get you closer to the answer.
>>
>>  thanks
>>
>>
>>
> Based on your responses I would look at disabling ehci_hcd -- here are a
> couple of examples from my Google search:
>
>
> http://www.geekdevs.com/2010/04/solved-unable-to-enumerate-usb-device-disabling-ehci_hcd/
>
>
> http://uucode.com/blog/2011/01/18/solved-unable-to-enumerate-usb-device-on-port-1/
>
> I have never tried APCUPSD on my hardware... but you might also scan
> through the known issues:
>
> http://www.apcupsd.org/manual/manual.html#known-linux-usb-issues
>
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