Display applications in different screens


I am developing a Linux image on Colibri iMX7 with Aster Carrier Board. I am trying to display two different application on the touchscreen (Resistive Touch Display 7" Parallel) connected by DSI and on a screen connected by VGA. When a connected the VGA I get the same image that I have on the touchscreen. Moreover, I look in /dev for any second framebuffer, but there is only a fb0 which is used to display the image into both screens.

Someone knows how can I display different applications on 2 screens at the same time? Is it configured by u-boot?

Best regards,

I don’t think the Colibri iMX7 even features multiple display interfaces. What you are really looking at is probably both parallel RGB once via Unified Display Interfaces (note this has nothing to do with DSI) and once via on-carrier RAMdac via analogue VGA.