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 -- Oops randomly with Huawei E220 3G dongle (regression) https://bugs.launchpad.net/bugs/430011 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs