Ubuntu: Problem with HDMI on Ubuntu 12.04



Question:

I've a problem with HDMI on my ultrabook. One week ago it worked fine but now there is a problem. When I connect it, Ubuntu recognize the monitor-tv but it's black/blank, no image will display. Someone can help me? Thanks


Solution:1

Ok, let's try and see if Ubuntu knows the second monitor. Open the Dash and type "Display". Enter the program and you should see 2 monitors there, one your laptop and the other your monitor connected trough HDMI.
Click on the external monitor and make sure it is set to "ON".


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