Comment 15 for bug 430011

I also have a Huawei E220 and everything worked fine with 2.6.31-11.38 but since I upgraded to 2.6.31-12.39 the system freezes (even Magic SysRq don't work).

With 2.6.31-12.39, the modem seems to be recognized first as usb storage (nautilus pop-ups) and then (I guess) when switching to modem mode, the system freezes.

Here is a successful connection with 2.6.31-11.38:

[ 1513.712130] usb 3-1: USB disconnect, address 3
[ 1513.713290] option: option_instat_callback: error -108
[ 1513.713722] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 1513.713764] option 3-1:1.0: device disconnected
[ 1513.714049] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 1513.714099] option 3-1:1.1: device disconnected
[ 1527.832095] usb 3-1: new full speed USB device using uhci_hcd and address 4
[ 1527.995370] usb 3-1: configuration #1 chosen from 1 choice
[ 1528.002742] option 3-1:1.0: GSM modem (1-port) converter detected
[ 1528.002979] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 1528.005410] option 3-1:1.1: GSM modem (1-port) converter detected
[ 1528.005624] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB1