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

[Torsten Spindler]

I did a test series with the usb option changes as in comment #12 by
Kamal. Here are the results:

=========================================================================
'normal'
42 cycles, modem gone
=========================================================================
echo -1 | sudo tee /sys/module/usbcore/parameters/autosuspend
unknown numbers of cycles, suspend/resume stopped and desktop was shown.
31 cycles, modem gone
=========================================================================
echo Y | sudo tee /sys/module/usbcore/parameters/old_scheme_first
250 cycles, modem around
=========================================================================

I will run another 250 cycles with the Y set for old_scheme_first and
only report back if the modem goes away again. Otherwise I think we have
found a solution for the problem.

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