[Bug 614274] Re: modem-manager fails to recognize 3G modem after suspend/resume

[Kamal Mostafa]

@Torsten-

This thread references "device descriptor read/64, error -71":
http://ubuntuforums.org/archive/index.php/t-797789.html

>From that thread ... these have no apparent effect on my T61 (sus-res continues to work reliably), but you might try it on yours:
  echo -1 | sudo tee /sys/module/usbcore/parameters/autosuspend
and/or:
  echo Y | sudo tee /sys/module/usbcore/parameters/old_scheme_first

-- 
modem-manager fails to recognize 3G modem after suspend/resume
https://bugs.launchpad.net/bugs/614274
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