[Bug 1571500] [NEW] console port speed impossible to set on ttyUSB0

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I want to add a console port on a Ubuntu machine to be able to access it
from a terminal server.

This machine has no serial port but lots of USB ports (like most nowadays).
I use a USB-to-serial adapter to have the ttyUSB0 up and listening.

I copied /lib/systemd/system/serial-getty at .service to
/lib/systemd/system/serial-getty at ttyUSB0.service and set the speed to
57600

+++++++++++
[Service]
ExecStart=-/sbin/agetty --keep-baud 57600 %I $TERM
+++++++++++

the service status shows the right speed

+++++++++++
$ sudo systemctl status serial-getty at ttyUSB0.service
● serial-getty at ttyUSB0.service - Serial Getty on ttyUSB0
   Loaded: loaded (/lib/systemd/system/serial-getty at ttyUSB0.service; enabled; vendor preset: enabled)
   Active: active (running) since 月 2016-04-18 14:07:30 JST; 58min ago
     Docs: man:agetty(8)
           man:systemd-getty-generator(8)
           http://0pointer.de/blog/projects/serial-console.html
 Main PID: 3017 (agetty)
   CGroup: /system.slice/system-serial\x2dgetty.slice/serial-getty at ttyUSB0.service
           └─3017 /sbin/agetty --keep-baud 57600 ttyUSB0 vt220
+++++++++++

Even so, I can't log in from the serial port at a speed other than
9600...

With such settings I shouldn't even be able to get a right answer at
9600bps, only garbage.

** Affects: util-linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
-- 
console port speed impossible to set on ttyUSB0
https://bugs.launchpad.net/bugs/1571500
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