Veja O SSH não redimensiona o terminal . O usuário relatou que o problema foi corrigido quando ele atualizou para o gnome-terminal-3.12.1.
Para instalar a nova versão em 14.04:
wget http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu/pool/main/v/vte3/libvte-2.90-common_0.36.2-1ubuntu1~trusty1_all.deb
wget http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu/pool/main/v/vte3/libvte-2.90-9_0.36.2-1ubuntu1~trusty1_amd64.deb
wget http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu/pool/main/g/gnome-terminal/gnome-terminal-data_3.12.1-0ubuntu1~trusty1_all.deb
wget http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu/pool/main/g/gnome-terminal/gnome-terminal_3.12.1-0ubuntu1~trusty1_amd64.deb
dpkg -i libvte-2.90-common_0.36.2-1ubuntu1~trusty1_all.deb
dpkg -i libvte-2.90-9_0.36.2-1ubuntu1~trusty1_amd64.deb
dpkg -i gnome-terminal-data_3.12.1-0ubuntu1~trusty1_all.deb
dpkg -i gnome-terminal_3.12.1-0ubuntu1~trusty1_amd64.deb
E para desinstalar (altere as versões para corresponder às últimas encontradas no repositório archive.ubuntu.com):
# apt-cache madison gnome-terminal gnome-terminal-data libvte-2.90 libvte-2.90-common
gnome-terminal | 3.6.2-0ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
gnome-terminal | 3.6.2-0ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main Sources
gnome-terminal-data | 3.6.2-0ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
gnome-terminal | 3.6.2-0ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main Sources
libvte-2.90-dev | 1:0.34.9-1ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
libvte-2.90-9 | 1:0.34.9-1ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
libvte-2.90-doc | 1:0.34.9-1ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
libvte-2.90-common | 1:0.34.9-1ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
libvte-2.90-common | 1:0.34.9-1ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
vte3 | 1:0.34.9-1ubuntu1 | http://archive.ubuntu.com/ubuntu/ trusty/main Sources
# apt-get install gnome-terminal=3.6.2-0ubuntu1 gnome-terminal-data=3.6.2-0ubuntu1 libvte-2.90-9=1:0.34.9-1ubuntu1 libvte-2.90-common=1:0.34.9-1ubuntu1
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be DOWNGRADED:
gnome-terminal gnome-terminal-data libvte-2.90-9 libvte-2.90-common