usb 转串口 kermit 终端显示乱码

[mtkfans]

请教下大家，ubuntu下用 usb转串口线 链接电脑和路由器，终端显示乱码 mimicom和 kermit都是，不知道是什么原因，系统已经识别到USB转串口，kermit也已经显示链接成功，但显示的都是乱码，而且无法输入，波特率总共就使用两个 57600 和 115200 都试过，都是显示乱码. 请假高手解决办法，非常感谢

root@fan:~# lsmod | grep usbserial
usbserial 53248 1 ch341
root@fan:~# dmesg | tail
[ 1339.526549] ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0
[ 1339.526571] ch341 1-1.3:1.0: device disconnected
[ 1345.931103] usb 1-1.3: new full-speed USB device number 9 using ehci-pci
[ 1346.040012] usb 1-1.3: New USB device found, idVendor=1a86, idProduct=7523
[ 1346.040015] usb 1-1.3: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ 1346.040017] usb 1-1.3: Product: USB2.0-Ser!
[ 1346.040464] ch341 1-1.3:1.0: ch341-uart converter detected
[ 1346.042240] usb 1-1.3: ch341-uart converter now attached to ttyUSB0
[ 1348.486673] show_signal_msg: 30 callbacks suppressed
[ 1348.486676] plugin-containe[2028]: segfault at 25fed20a83c4 ip 00007fc1562fe522 sp 00007ffd0fe4a618 error 6 in libflashplayer.so[7fc155c8d000+107b000]
root@fan:~# kermit
C-Kermit 9.0.302 OPEN SOURCE:, 20 Aug 2011, for Linux+SSL+KRB5 (64-bit)
Copyright (C) 1985, 2011,
Trustees of Columbia University in the City of New York.
Type ? or HELP for help.
(/root/) C-Kermit>connect
Connecting to /dev/ttyUSB0, speed 57600
Escape character: Ctrl-\ (ASCII 28, FS): enabled
Type the escape character followed by C to get back,
or followed by ? to see other options.
----------------------------------------------------

[onlylove]

改参数，换线或者换windows（很多渣渣线在windows下面工作正常）