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Does not Debian support mobile broadband anymore?




Hi, everyone,

Since my Debian testing was upgraded on Oct 29, the mobile broadband in my laptop could not be used. The mobile broadband is missing in the network-manager UI, and wvdialconf can not configure the broadband either. The message of wvdialconf is as below,

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Editing `/etc/wvdial.conf'.

Scanning your serial ports for a modem.

ttyS0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Modem Port Scan<*1>: S1 S2 S3
WvModem<*1>: Cannot get information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- [01]
ttyUSB0<*1>: failed with 2400 baud, next try: 9600 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- [01]
ttyUSB0<*1>: failed with 9600 baud, next try: 9600 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- [01]
ttyUSB0<*1>: and failed too at 115200, giving up.


Sorry, no modem was detected! Is it in use by another program?
Did you configure it properly with setserial?

Please read the FAQ at http://alumnit.ca/wiki/?WvDial
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My laptop is Thinkpad X1 Carbon 5th, and its mobile broadband device is Sierra Wireless EM7455. This function works fine before the upgrading. Does not Debian support mobile broadband anymore? Or who known how to resolve this problem? Thank you very much! Best regards, Gulfstream