Re: stretch: amd64, no dmesg when usb stuff plugged in
On Fri, 6 Sep 2019 10:44:45 -0400
Gene Heskett <gheskett@shentel.net> wrote:
> I found it. A staples brand usb hub that has served on the end of an
> extension cable, as a place to plugin the dongles for the
> keyboard/mouse for the last 8 or so years was doing funkity things to
> udev. Replaced with another off brand slow hub with power buttons for
> each socket, and the system is back to something resembling normal
> operation.
Good job.
Here is what may be going on: the USB spec requires that plugs make .5
amps (I think) available to devices. Hubs which do not use an external
power supply cannot supply that to all the devices on that hub, so they
do wonky things. So if you must have a USB hub, get one with an
external power source.
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of brute force."
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