My new server install looks odd: enter image description here

is there anyway to resize it to use the whole terminal window?

  • This madness is finally over! I was cursing those dots where messed up with my highly sophisticate activity, namely copy & paste. May 29, 2015 at 13:56

6 Answers 6


This means that there is another ssh or terminal client, other than yourself, connected to this session, which has a smaller window size than yours.

You can detach all clients but yourself, using this Byobu hotkey:


Or you can run the script /usr/lib/byobu/include/tmux-detach-all-but-current-client

Full disclosure: I am the author and maintainer of Byobu.

  • 2
    I'd upvote you, but I don't have the reputation for it, thank you, it never occurred to me that I'd left myself logged in after I was done setting up the network.
    – HilarieAK
    May 30, 2014 at 16:09
  • 7
    Alt - F6 did not work for me, but the script does. May 29, 2015 at 13:55
  • This shortcut and this command does not work for me... I am using screen and not tmux...
    – Loenix
    Jun 23, 2015 at 6:00
  • 1
    Some distros may not include that script - you can download it here - raw.githubusercontent.com/dustinkirkland/byobu/master/usr/lib/… Jul 2, 2015 at 17:40
  • Doing the Alt - F6 on my Macbook Air while Mosh'ing into my server caused me to disconnect as well ;( Jan 4, 2016 at 19:04

An alternative to Alt-F6 is Prefix-Shift-D, where Prefix is your byobu escape command (typically Ctrl-a).

See more info here: https://stackoverflow.com/questions/22138211/how-do-i-disconnect-all-other-users-in-tmux.


Alt-F6 did not work for me. But I found that I was using tmux. To detach the other window use a combination of list-clients and detach-client:

% tmux list-clients
/dev/pts/1: 0 [64x160 xterm] (utf8)
/dev/pts/39: 0 [39x143 xterm] (utf8)
% tmux detach-client -t /dev/pts/39

Since the 64x160 is larger, I figured that was my window while the other client was the smaller one.

  • This works like a charm. Tried the accepted one and didn't work, but this one did. Good job.
    – Drubio
    Nov 27, 2018 at 15:29
  • This seems to do the exact same thing as /usr/lib/byobu/include/tmux-detach-all-but-current-client. For me the smaller client "disappears for maybe 3 seconds, then comes back. What gives?
    – Mr Baloon
    Sep 20, 2020 at 14:48

Fantastic script! On OSX using byobu installed with Homebrew, it's (currently)


presumably you'd modify the version number, but that's to give you an idea of how to find it

brew info byobu will tell you where byobu stores its lib etc files.

then just append the lib/byobu/include/tmux-detach-all-but-current-client to whatever that location is (in my case, /usr/local/Cellar/byobu/5.92/)


I tried both the script (tmux-detach-all-but-current-client) and alt-F6. None of them worked. The terminal only went fullscreen for a couple of seconds, then it went back to small size (like in the image in the original post). I also checked users with w, it was only me logged in.

What ended up working for me, was simply disabling Byobu and enabling Byobu again, with a logout/in in between. Like so:

Login again

Screen is back to normal.


I got it to work sending the command via vim Sepcial chars on your preference keys on iterm2 \033[17;3~

here is image that show the configuration

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