On my nvidia card, if I enable one of the nvidia drivers then it does not recognize the hdmi output (even after installing nvidia-settings and nvtv). However, if I use Ubuntu's default driver... it SEES the TV but it does not actually display a picture on the TV

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We need more hardware information to help you, can you look at this question and then edit your question adding the information. – coversnail May 5 at 7:49
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