Problem
In ubuntu 9.10(karmic) US Robotics dial up modem not detecting when you use wvdial Gnome-ppp says "can't open modem"
$ sudo wvdial
[sudo] password for john:
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
--> Sending: ATQ0
--> Re-Sending: ATZ
--> Modem not responding.
Solution
Currently we have bug files agenst this problem Ubuntu bug #469881
The workaround for the above problem is removing the modemmanager package from your system using the following command
sudo apt-get remove modemmanager
You can restart your system after uninstalling the above package?
One of our reader (John) send this tip and thank you very much for this
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