OT: Suspend/restore and USB devices

[Tim]

On Sat, 2016-04-02 at 11:08 +0100, Patrick O'Callaghan wrote:
> I still don't understand why using the extension cable makes a
> difference.

I wonder if your motherboard only supplies low current to the USB ports
when in off/suspend modes, and that upsets the dongle.  What happens
with a shutdown, mains power disconnect, wait a while, then boot?

Though I wouldn't expect a small dongle to use a lot of power, it may be
at the tipping point where a longer cable introduces a significant
supply voltage drop.  Some USB cables only have very thin wires in them.


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