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HDMI connection not working

Windows is not recognizing that I have a monitor connected to my HDMI expansion port. When I plug in the port I get a sound recognizing a device was added, but I get no such sound when plugging in the cable. How can I troubleshoot this?

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After reading more, I realized what the problem was and now have something working. I was running an HDMI to Mini DisplayPort cable to my monitor. But apparently the chipset doesn’t support HDMI to DP directly. When I switched it to using an HDMI to HDMI cable it worked fine.

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You have to install the expansion card when the laptop is off.

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