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I'm running Ubuntu 13.10 and trying to connect to my TV using the HDMI port on my computer. But nothing happens when I plug it in, and clicking on Detect Displays in the display settings does nothing.

How do I get it to detect HDMI ?

xrandr:
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767

LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm

1366x768       59.9*+
   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)

HDMI1 disconnected (normal left inverted right x axis y axis)

DP1 disconnected (normal left inverted right x axis y axis)

VIRTUAL1 disconnected (normal left inverted right x axis y axis)
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Is the TV compatible with computers? Also, try connecting it, rebooting, and running updates - sudo apt-get update && sudo apt-get upgrade. –  Wilf Dec 6 '13 at 22:36
    
Which device you are running Ubuntu? Can you put the output of lspci into this question? –  frlan Dec 13 '13 at 8:49

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