Vga+hdmi

Hi can anyone help
I have a laptop with vga and hdmi outputs as well as the laptop screen, i connect screens to both the vga and hdmi the system see all the screens 1,2,3 but will not let me extend desktop to both hdmi and vga at the same time how can i do this, the graphics is ATI Mobility Radeon HD 5470?
Steve
2 answers Last reply
More about hdmi
  1. you cant.
  2. why not the displays are recognised as being connected and hdmi is digital and vga analogue so are using different technology, i dont mind not displaying the laptop screen.
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