Re: After waking from suspend, USB devices are not recognized (Ubuntu 17.10)
Yuval Adam <[email protected]>
| Newsgroups | gmane.linux.region.israel |
|---|---|
| Message-ID | <[email protected]> |
This might help: http://linrunner.de/en/tlp/docs/tlp-configuration.html#usb On 11/24/2017 05:51 PM, Michael Shiloh wrote: > Very interesting. After removing TLP the problem seems to have gone > away. I am now able to enjoy USB peripherals again. Thanks! > > I'd love to understand why, though. > > On Fri, Nov 24, 2017 at 11:45 AM, Michael Shiloh > <[email protected] <mailto:[email protected]>> wrote: > > Not powertop, but yes tlp. Very interesting. I will uninstall and > see if that solves the problem. > > Another observation I just made: If I suspend the laptop with USB > devices plugged in, they are still detected when I restart. > > 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. > > I will disable TLP and report back. > > Michael > > On Fri, Nov 24, 2017 at 2:38 AM, Efraim Flashner > <[email protected] <mailto:[email protected]>> wrote: > > On Thu, Nov 23, 2017 at 06:15:03PM +0400, Michael Shiloh wrote: > > Hi, > > > > I noticed that my old mouse didn't work all the time, and figured it was > > time to replace the mouse. Then I had trouble programming some Arduinos, > > and figured I had a bad Arduino. It wasn't until my system failed to see a > > thumb drive that I finally realized the common element here: After waking > > from suspend, no devices plugged in to the USB ports are recognized. > > > > Do you run powertop or tlp on your laptop? Sometimes those can cause > issues with the USB ports. > > -- > Efraim Flashner <[email protected] > <mailto:[email protected]>> אפרים פלשנר > GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 > Confidentiality cannot be guaranteed on emails sent or received > unencrypted > > > > > > _______________________________________________ > Linux-il mailing list > [email protected] > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il > _______________________________________________ Linux-il mailing list [email protected] http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il