We do not officially support re-sizing the VM's screen size, but if you wish to do so, the command is:
nohup env -i PATH=$PATH HOME=$HOME USER=$USER bash -c
"killall Xtightvnc;sleep 5;tightvncserver -name vncserver -localhost
-nolisten tcp -depth 16 -geometry 1600x1200 :1”
Simply replace "1600*1200" with your desired resolution.
With this command you can adjust the
geometry parameter to be whatever size you'd like. After running the command
you will get a java popup asking you to reconnect. You will need to
wait about 10-15 seconds before hitting OK on this window.
Please note that this change will not persist if you log out - in which case the command will have to be run again.