Since people still seem to have problems I thought I should chime in and share some of my experiences.
I had problems with connecting my E220 on 11.10 oneiric using MM 0.5-1ubuntu1 after upgrading the modem firmware to 11.117.10.02.00. (Don't remember what firmware version I had before the upgrade.)
I found a simple workaround that allowed me to connect reliably with ModemManager (detailed in duplicate bug #932824):
Prevent MM to probe /dev/ttyUSB1 by starting the command 'cat /dev/ttyUSB1' before MM starts its probing.
The updated version of MM currently in oneiric (which is supposed to fix this bug?), 0.5-1ubuntu1.1, does not work for me, but my workaround still works.
To test if you have the same problem as I have, you can try the following:
- Make sure the modem is physically disconnected.
- Open a terminal and run the command 'while true; do cat /dev/ttyUSB1; sleep 1; done'
(Before the modem is connected you will see messages like 'cat: /dev/ttyUSB1: No such file or directory' once every second. After the modem is connected and initialized you will see messages from the modem, such as ^BOOT:59866241,0,0,0,6 ^MODE:5,5 ^RSSI:27 and others.)
- Connect the modem to your computer.
- Connect using modem manager as usual.
Note: After ModemManager is done with its probing you can abort the cat /dev/ttyUSB1 command.
If this workaround works for you, you might want to try the "ports" branch of ModemManager which Aleksander Morgado mentioned in comment #145 (with more info available in the comments before and after). I've been using the ports branch since February and it has been working perfectly all the time.
Hi Sleepy John and others,
Since people still seem to have problems I thought I should chime in and share some of my experiences.
I had problems with connecting my E220 on 11.10 oneiric using MM 0.5-1ubuntu1 after upgrading the modem firmware to 11.117.10.02.00. (Don't remember what firmware version I had before the upgrade.)
I found a simple workaround that allowed me to connect reliably with ModemManager (detailed in duplicate bug #932824):
Prevent MM to probe /dev/ttyUSB1 by starting the command 'cat /dev/ttyUSB1' before MM starts its probing.
The updated version of MM currently in oneiric (which is supposed to fix this bug?), 0.5-1ubuntu1.1, does not work for me, but my workaround still works.
To test if you have the same problem as I have, you can try the following: 0,0,0,6 ^MODE:5,5 ^RSSI:27 and others.)
- Make sure the modem is physically disconnected.
- Open a terminal and run the command 'while true; do cat /dev/ttyUSB1; sleep 1; done'
(Before the modem is connected you will see messages like 'cat: /dev/ttyUSB1: No such file or directory' once every second. After the modem is connected and initialized you will see messages from the modem, such as ^BOOT:59866241,
- Connect the modem to your computer.
- Connect using modem manager as usual.
Note: After ModemManager is done with its probing you can abort the cat /dev/ttyUSB1 command.
If this workaround works for you, you might want to try the "ports" branch of ModemManager which Aleksander Morgado mentioned in comment #145 (with more info available in the comments before and after). I've been using the ports branch since February and it has been working perfectly all the time.