Using ubantu 16.04, when I try to use HDMI or VGA the screen only shows 2/3 of the screen. The whole right side is missing on the TV, as in I can't see the usb controls, exit ect. Tried all the adjusting via the computer but seems to be a bug in the app and goes into landscape mode. Tried mirror and separate screen. When plugged in using hdmi the laptop screen doesn't show the right side either. Any ideas I haven't tried? Works fine just on laptop.

You could try to force the resolution using command line parameters. I'm not sure how to do that in Ubuntu though (I'm not a Linux user myself). For example:

-screen-fullscreen 0 -screen-width 1920 -screen-height 1080

Perhaps running it in a window (instead of fullscreen) will help, perhaps not.

Sounds like it some problem with the connection itself. Perhaps it has to do with the video drivers. Does it show the computer desktop properly when you are not running Freerider?