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I have enable FullScreenmode in Dosbox under Ubuntu 12.04 . But still i am not getting it in Fullscreen. My turbo c++ windows is less than my screen size.

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First, press ctrl + F10 to lock mouse to dosbox and then try alt + Enter.

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  • Goto /home/user/dosbox.conf
  • Find resolution
  • Change fullresolution from original to your choice (eg. fullresolution=640x480)
  • Leave windowresolution intact (i.e, windowresolution=original) as you might want a smaller sized window.

Optional: change fullscreen to true (i.e, fullscreen=true) if you want to start dosbox in fullscreen mode

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I think the Alt-Enter command makes DOSBox go full-screen. That might not be your problem, though.

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You need to edit dosbox-0.74.conf as given below

Go to terminal and type gedit /home/severus/.dosbox/dosbox-0.74.conf

and make these changes:


output=opengl #MOST IMPORTANT


Now save the file and open dosbox. It should be fullscreen with full workspace.

NOTE : Original source of this answer : Click Here

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