I want to use a U.S. Robotics 56 K external modem on my Thinkpad 380 XD, on my Laptop i have Windows and Debian potato with a nonus 2.2.17. My modem is recognize and run on Windows, but on Linux wvdial don't run the modem. when i use : setserial -g -a /dev/ttyS0 the system see that a device is connected, but wvdial writes that it can't run the modem. Excuse for my english and thank you.