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USB ports not being recognized

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  USB ports not being recognized David Downing <david.h.downing@gmail.com> - 2014-02-24 16:58 -0800
    Re: USB ports not being recognized Alan Browne <alan.browne@FreelunchVideotron.ca> - 2014-02-24 20:07 -0500
      Re: USB ports not being recognized Lewis <g.kreme@gmail.com.dontsendmecopies> - 2014-02-25 07:18 +0000
        Re: USB ports not being recognized Jolly Roger <jollyroger@pobox.com> - 2014-02-25 17:02 +0000
      Re: USB ports not being recognized Barry OGrady <atheist@hotmail.com.au> - 2014-02-25 19:38 +1100
      Re: USB ports not being recognized billy@MIX.COM - 2014-02-25 05:36 +0000
    Re: USB ports not being recognized Michael Vilain <vilain@NOspamcop.net> - 2014-02-24 18:47 -0800

#57040 — USB ports not being recognized

I've been having a problem intermittently ever since I installed Mavericks. The USB ports aren't being recognized. Software that is supposed to use devices connected to these ports isn't taking input from these devices. What's going on here?

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#57041

On 2014.02.24, 19:58 , David Downing wrote:
> I've been having a problem intermittently ever since I installed
> Mavericks. The USB ports aren't being recognized. Software that is
> supposed to use devices connected to these ports isn't taking input
> from these devices. What's going on here?

Which devices?

I spent an hour on the phone with a senior engineer at
Apple.  My disk docks have occasionally been disconnecting (USB 3.0, not
2.0).  Come to think of it they're behaving perfectly today.

He's sent me a package to trap disconnect events and send them back to 
Apple.  I'll try to get to it this week (have to - the link back expires 
on Sat.)

In the meantime look at your system profiler to see what the device 
status is.  There may be clues there.  (hold the option key and click 
the Apple logo, select system information; look at the USB stuff).

Oh.  If you're using a hub, try re-starting the hub (disconnect power 
and cable to computer) if you've added USB 3.0 devices and it had no USB 
3.0 devices before that.  (Anker hubs or hubs with the VLI chipset).

-- 
   Privacy has become an essential personal chore that most
   people are not trained to perform.
                  - Jaron Lanier, Scientific American, 2013.11.

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#57052

In message <ZJydnaOQDKt5cZbOnZ2dnUVZ_hGdnZ2d@giganews.com> 
  Alan Browne <alan.browne@FreelunchVideotron.ca> wrote:
> On 2014.02.24, 19:58 , David Downing wrote:
>> I've been having a problem intermittently ever since I installed
>> Mavericks. The USB ports aren't being recognized. Software that is
>> supposed to use devices connected to these ports isn't taking input
>> from these devices. What's going on here?

> Which devices?

> I spent an hour on the phone with a senior engineer at
> Apple.  My disk docks have occasionally been disconnecting (USB 3.0, not
> 2.0).  Come to think of it they're behaving perfectly today.

That seems to be a "feature" of USB3. As I've sadi in the past, it
happens on OS X and Windows machines. USB3 is faser than USB2, but it's
damn unstable with most devices.


-- 
Once again I teeter at the precipice of the generation gap.

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#57072

On 2014-02-25, Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
> In message <ZJydnaOQDKt5cZbOnZ2dnUVZ_hGdnZ2d@giganews.com> 
>   Alan Browne <alan.browne@FreelunchVideotron.ca> wrote:
>> On 2014.02.24, 19:58 , David Downing wrote:
>>> I've been having a problem intermittently ever since I installed
>>> Mavericks. The USB ports aren't being recognized. Software that is
>>> supposed to use devices connected to these ports isn't taking input
>>> from these devices. What's going on here?
>
>> Which devices?
>
>> I spent an hour on the phone with a senior engineer at
>> Apple.  My disk docks have occasionally been disconnecting (USB 3.0, not
>> 2.0).  Come to think of it they're behaving perfectly today.
>
> That seems to be a "feature" of USB3. As I've sadi in the past, it
> happens on OS X and Windows machines. USB3 is faser than USB2, but it's
> damn unstable with most devices.

Reminds me of the initial USB implementations.

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

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#57059

On Mon, 24 Feb 2014 20:07:48 -0500, Alan Browne
<alan.browne@FreelunchVideotron.ca> wrote:

>On 2014.02.24, 19:58 , David Downing wrote:
>> I've been having a problem intermittently ever since I installed
>> Mavericks. The USB ports aren't being recognized. Software that is
>> supposed to use devices connected to these ports isn't taking input
>> from these devices. What's going on here?
>
>Which devices?
>
>I spent an hour on the phone with a senior engineer at
>Apple.  My disk docks have occasionally been disconnecting (USB 3.0, not
>2.0).  Come to think of it they're behaving perfectly today.
>
>He's sent me a package to trap disconnect events and send them back to 
>Apple.  I'll try to get to it this week (have to - the link back expires 
>on Sat.)
>
>In the meantime look at your system profiler to see what the device 
>status is.  There may be clues there.  (hold the option key and click 
>the Apple logo, select system information; look at the USB stuff).
>
>Oh.  If you're using a hub, try re-starting the hub (disconnect power 
>and cable to computer) if you've added USB 3.0 devices and it had no USB 
>3.0 devices before that.  (Anker hubs or hubs with the VLI chipset).

Get rid of Mavericks. No wonder its free.

-- 
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#57307

Alan Browne <alan.browne@freelunchvideotron.ca> writes,
quoting David Downing:

> > I've been having a problem intermittently ever since I installed
> > Mavericks. The USB ports aren't being recognized. Software that is
> > supposed to use devices connected to these ports isn't taking input
> > from these devices. What's going on here?
> 
> Which devices?
> 
> I spent an hour on the phone with a senior engineer at
> Apple.  My disk docks have occasionally been disconnecting (USB 3.0, not
> 2.0).  Come to think of it they're behaving perfectly today.
> 
> He's sent me a package to trap disconnect events and send them back to 
> Apple.  I'll try to get to it this week (have to - the link back expires 
> on Sat.)

Both of you might find this useful (free registration required) -

https://developer.apple.com/downloads/index.action?q=IOUSB

Billy Y..
-- 
        sub     #'9+1   ,r0             ; convert ascii byte
	add     #9.+1   ,r0             ; to an integer
	bcc     20$                     ; not a number

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#57044

In article <2d5306f7-efc8-46af-bddf-dcdca58e1c6b@googlegroups.com>,
 David Downing <david.h.downing@gmail.com> wrote:

> I've been having a problem intermittently ever since I installed Mavericks. 
> The USB ports aren't being recognized. Software that is supposed to use 
> devices connected to these ports isn't taking input from these devices. 
> What's going on here?

Well, either it's a cable problem, a device problem or a driver problem.

If you switch out the cable with something you *know* works OK, does the 
problem go away?

If you move the *suspect* cable to another device, does the problem 
follow?

Have you checked with the vendor that makes the device to find out if it 
works with 10.9.  If it's old, chance are you're probably looking at 
replacing it.

If you restore your system to the previous release of MacOS before 10.9 
(whatever you were running) from the backup you took before you 
upgraded, does the problem go away?  OR install 10.8 in Parallels or 
Fusion and run the older version of the OS in a VM.  Does the device 
work with that?

These are just some of the things I might try.

-- 
DeeDee, don't press that button!  DeeDee!  NO!  Dee...
[I filter all Goggle Groups posts, so any reply may be automatically ignored]

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