One striking difference between the two modem-manager.logs is that in 11.10 there is communication with ttyUSB1 in parallel, whereas in 11.04 it is "type ignored" after the probing.
The commands that are going to ttyUSB0 seem not to be different in both logs, but the response from there stops at the moment the command "AT+CGREG=2" is sent to ttyUSB1 (log from 11.10). This is supposed to switch on unsolicited status output on that port, to monitor the signal and other parameters during a connection. This seems to be a fundamental difference in the modem handling between 11.04 and 11.10. I'm not familiar with the NM/MM code though, so I can't give further assistance here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/868034 Title: Huawei E220 can't connect on Ubuntu 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/868034/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
