[chbot] USB2 vs USB3 ports

[Dan Wallis]

My wife bought an MP3 player from The Warehouse about a year ago, and
our laptop doesn't recognise that there's anything plugged in when
it's attached to the USB3 ports, but works just fine on the USB2 port.
The cable is fine, since it's a regular micro-USB which we use happily
for other devices on the USB3 ports without issue, and the same cable
works with USB2 and this device. Maybe there's something in the device
which refuses to talk anything newer than USB2. I'd link to it, but
looks like they're not selling anymore.

2016-12-08 8:44 GMT+13:00 Volker Kuhlmann <list0570 at paradise.net.nz>:
> On Thu 08 Dec 2016 08:16:11 NZDT +1300, Charles Manning wrote:
>
>> "If you are using a computer with USB3 ports, it’s suggested that you
>> attach a USB2-compliant hub and connect your CHIP to the hub, instead of
>> directly to the USB3 port."
>
> Pretty p.-poor, isn't it?
>
> If I had to guess the reason, I'd say it's because of reliability. Many
> USB2 connectors (both plugs and sockets) are very pooly manufactured
> with some insane tolerances, I can easily get unreliable connections by
> wriggling a cable, that's a USB2 cable from CDL and a computer
> case/maninboard bought in Christchurch so not even Aliexpress.
> With USB3 sockets things get worse, because the contact area for the
> USB2 plug in the 3 socket is much reduced.
>
> So presumably the devkit supplier doesn't want to cop the flac for the
> PC industries' crappy hardware and is suggesting a way to make it
> more(?) reliable. Whether a hub is indeed more reliable...
>
> Volker
>
> --
> Volker Kuhlmann
> http://volker.top.geek.nz/      Please do not CC list postings to me.
>
>
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