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I know that Ubuntu treats an external device as an file, for eg. when i connect an external webcam to my pc, a file named as video1 creates under my dev directory. I just want to know that does ubuntu handles external display the same way and how we can configure/select from multiple displays connected to a pc.

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1 Answer 1

open Displays from unity. Then press Detect Display if not found

Use xrandr to use and configure the display

Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192 LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 1366x768 60.0*+ 1360x768 59.8 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis)

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