[ubuntu] HDMI output is not working DVI1 I think

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http://ubuntuforums.org – I am trying to connect a monitor to the HDMI video output but it is not working. I have tested the monitor and its working but when I type on a terminal xrandr -q I get: Code: Screen 0: minimum 320 x 200, current 2560 x 1024, maximum 8192 x 8192 VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 337mm x 270mm   1280x1024      75.0*+  75.0*    60.0    1600x1024      60.2    1400x1050      60.0    60.0    1440x900      75.0& (Hardware)