I'm trying to access my raspberry pi via its serial console on the gpio pins. It's working fine through a USB-3.3v serial dongle. However, there's a problem with long lines and long screens not displaying correctly. I'm running minicom in a gnome-terminal which is not set to 24x80 columns (and gnome-terminal's Terminal/1 (24x80) option) doesn't help.

It's as if minicom completely ignores the sigwinch it must be getting, and/or has no way to send that over the serial line to change the terminal type.

  • Not a valid/answer or solution, but I find putty works quite well as a serial terminal in linux.
    – jordanm
    Commented Jan 24, 2013 at 1:58
  • Sure, but it's still stuck in GTK+ 1.x. Commented Jan 24, 2013 at 2:02
  • There are other minicom alternatives possibly worth trying (the thread mentions cu, screen, seyon, conserver and kermit)
    – sr_
    Commented Jan 24, 2013 at 7:47
  • I did some experimenting with xterm vs gnome-terminal, and screen vs minicom. None of them change it. I'm concluding that the problem is on the Debian end, where it's not emitting the correct terminal escape codes. Commented Mar 27, 2013 at 16:32
  • May be a solution here: unix.stackexchange.com/questions/106644/…
    – user162770
    Commented Mar 25, 2016 at 13:38

1 Answer 1


You're right, in that minicom won't communicate the fact of a window change to the far end. If you're using a VT100-like emulation, you might be able to do a

eval `resize`

to generate some control characters that will force the emulator to tell the far end the size of its window.

On Debian-like systems, resize is in the xterm package.

  • 1
    At least with zsh and bash it's sufficient to call resize as-is. I don't need to eval its output and the shell correctly adjusts the LINES/COLUMNS variables on its own. Commented Mar 7, 2018 at 14:58

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