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

[Torsten Spindler]

Removing the driver via modprobe -r sierra and then inserting it again
does not cure the problem, the modem is still gone.

** Description changed:

  Binary package hint: network-manager
  
  A 3G modem is no longer recognized by modem-manager when the system
- resumes. It seems the USB identification changes upon resume, from
- usb6/6-1 to usb6/6-2. This might be caused by udev rules?
+ resumes. The USB device under
+ /sys/devices/pci0000:00/0000:00:1d.1/usb6/6-1 is gone, the dmesg output
+ below contains the following info:
+ 
+ [ 4251.624038] usb 6-1: new full speed USB device using uhci_hcd and address 4
+ [ 4251.744422] usb 6-1: device descriptor read/64, error -71
+ [ 4251.968059] usb 6-1: device descriptor read/64, error -71
+ [ 4252.184088] usb 6-1: new full speed USB device using uhci_hcd and address 5
+ [ 4252.304068] usb 6-1: device descriptor read/64, error -71
+ [ 4252.528099] usb 6-1: device descriptor read/64, error -71
+ [ 4252.744095] usb 6-1: new full speed USB device using uhci_hcd and address 6
+ [ 4253.160115] usb 6-1: device not accepting address 6, error -71
+ [ 4253.272083] usb 6-1: new full speed USB device using uhci_hcd and address 7
+ [ 4253.688067] usb 6-1: device not accepting address 7, error -71
+ [ 4253.688104] hub 6-0:1.0: unable to enumerate USB device on port 1

** Package changed: network-manager (Ubuntu) => linux (Ubuntu)

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