is there a way to pause gnome from other tty? -

is there a way to pause gnome from other tty? -

to run virtual machine on computer , have more resources it, i'd pause gnome. thought go on other tty pause gnome , run virtual machine lower ram host necessary utilize of gnome. did not found anything, supposed not possible. i'd sure. that's why inquire question here

my os linux mint 13.

have day.

there isn't way freeze process disk on linux , remove ram, , if there was, phone call gnome made of many processes , programs running @ same time trying co-ordinate processes needed freeze tricky

gnome tty