<div dir="ltr"><div><div><div><div>Not powertop, but yes tlp. Very interesting. I will uninstall and see if that solves the problem.<br><br></div>Another observation I just made: If I suspend the laptop with USB devices plugged in, they are still detected when I restart. <br><br></div>I guess I could work around by leaving some small USB device plugged in (one of those wireless mouse things) but obviously that's a real hack. Still, the observation may be a hint as to what's going on or what I might look at next.<br><br></div>I will disable TLP and report back.<br><br></div>Michael<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Nov 24, 2017 at 2:38 AM, Efraim Flashner <span dir="ltr"><<a href="mailto:efraim@flashner.co.il" target="_blank">efraim@flashner.co.il</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Thu, Nov 23, 2017 at 06:15:03PM +0400, Michael Shiloh wrote:<br>
> Hi,<br>
><br>
> I noticed that my old mouse didn't work all the time, and figured it was<br>
> time to replace the mouse. Then I had trouble programming some Arduinos,<br>
> and figured I had a bad Arduino. It wasn't until my system failed to see a<br>
> thumb drive that I finally realized the common element here: After waking<br>
> from suspend, no devices plugged in to the USB ports are recognized.<br>
><br>
<br>
</span>Do you run powertop or tlp on your laptop? Sometimes those can cause<br>
issues with the USB ports.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Efraim Flashner <<a href="mailto:efraim@flashner.co.il">efraim@flashner.co.il</a>> אפרים פלשנר<br>
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</font></span></blockquote></div><br></div>