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Make sure cable is seated properly at both ends. Unplug and re-plug. If this doesn't work you may have a bad HDMI cable or the HDMI interface on your TV or computer stopped working. On the computer there may be a way to turn the HDMI port on or off. You have to eliminate all these possibilities. Replace the cord, plug the computer into another TV or drive your current TV from a different HDMI source using the same cable.

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15y ago

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