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Snow Leopard No USB 2.0

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Ricky Berg
Snow Leopard No USB 2.0
on Dec 5, 2011 at 7:36:13 pm

Hello,

I installed Snow Leopard on my iMac 2.4GHz Intel Core 2 Duo.
After the install my USB ports were downgraded to USB 1.1 being that my TV dongle did not work anymore as it needs a USB 2 port.

I have been unable to resolve the issue.

Anybody got a clue?

Thanks in advance.

Ricky


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Steve Modica
Re: Snow Leopard No USB 2.0
on Dec 5, 2011 at 8:41:28 pm

That sounds fishy to me. what if you put a USB 2.0 HUB in between? It should handle the translation. Does it work then?
Steve

Steve Modica
CTO, Small Tree Communications


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Ricky Berg
Re: Snow Leopard No USB 2.0
on Dec 13, 2011 at 2:15:35 pm

Hi Steve,

Thanks for replying.

Unfortunately it does not work with the USB 2.0 hub.
I found a strange solution on a website where they advise to put the USB dongle in the oven??? at a non destructive temperature.

I will give it a go and let you know the endresult.

Best,

Ricky


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Steve Modica
Re: Snow Leopard No USB 2.0
on Dec 13, 2011 at 4:14:14 pm

So in this case, it almost sounds like a driver issue (I don't think heating anything is a good idea).
If it was a USB 1.1/2.0 issue, the HUB would have resolved it. So it's more likely, you are somehow missing a kext. If you put the thing on a working machine, see which kext loads (kextstat) and then see if you are missing it in /System/Library/Extensions. Maybe you have something that is old and is grabbing the thing. It could be a leftover from 10.5

Steve

Steve Modica
CTO, Small Tree Communications


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Ricky Berg
Re: Snow Leopard No USB 2.0
on Jan 16, 2012 at 12:04:27 pm

It finally worked when applying two options.
1. I removed the USB extension cable
2. I heated up the device for a while in the oven

Mysteriously it works again :-)


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Dave Malone
Re: Snow Leopard No USB 2.0
on Apr 12, 2012 at 8:00:09 pm

How long was "for a while"?


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Steve Modica
Re: Snow Leopard No USB 2.0
on Apr 12, 2012 at 8:05:09 pm

[Dave Malone] "How long was "for a while"?"

Til golden brown and delicious

Steve Modica
CTO, Small Tree Communications


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