Graphics Driver is not displayed in Details

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http://askubuntu.com – my original problem comes from trying to connect my laptop to my TV via an HDMI cable. While my computer detects my TV on the Displays, I get no image on it. I have looked at others posts, trying to get the newest drivers for the video card. And I have even gotten my post with those recommendations. But still no image. My newest discovery, if it helps, is that there I get an unknown Graphics Driver in the System Details, when I open it from System Settings. This is different than what I get with the command lspci | grep VGA on the terminal. Would someone know of a hint to solve this, (HowTos)