To maximize a window using the keyboard, hold down the Super key and press ↑ , or press Alt + F10 . To restore a window to its unmaximized size, drag it away from the edges of the screen. If the window is fully maximized, you can double-click the titlebar to restore it.

How do I make Linux full screen?

To turn on fullscreen mode, press F11 .

How do I make Ubuntu VirtualBox full screen?

Quick Steps

Pick one resolution, then open ‘/etc/default/grub’ (e.g. sudo vim /etc/default/grub ) and change the line #GRUB_GFXMODE=640×480 to something like this GRUB_GFXMODE=1152×864 (where 1152×864 should be your custom resolution which is also supported by your graphic card).