Quick checklist to pick the right adapter:

• Check the video output on your computer (DisplayPort full-size or mini DisplayPort) and the HDMI input on your monitor/TV.
• Match the supported resolutions/refresh rates — note the adapter and cable must support the target (for example, 4K@60Hz needs higher-spec hardware).
• Decide between passive and active: passive adapters rely on the computer supporting DP++ (dual-mode); active adapters convert signals and are needed for some setups.
• Confirm connector genders (male/female) and cable length.

You can use the product details and filters on the retailer page to compare specs, and keep your order info in case you need to return or exchange.

Step-by-step hookup:

1. Get a mini DisplayPort (or mini DP/Thunderbolt) to HDMI adapter or cable that supports the resolution you want.
2. Connect the mini DP end to your laptop and the HDMI end to the TV, making sure both ends are snug.
3. Switch the TV to the correct HDMI input.
4. On the laptop, open display settings to choose duplicate or extend and set resolution/refresh.
5. If you want audio through the TV, select the TV as the audio output in sound settings.

If the picture or sound doesn’t appear, try a different cable, confirm adapter direction, and check the adapter’s spec sheet on the product page.

Troubleshooting steps to try:

1. Verify adapter directionality — many adapters are uni-directional (DisplayPort source to HDMI display).
2. Make sure connections are fully seated and the TV/monitor input is set to the HDMI port you used.
3. Try a different HDMI cable and another HDMI input to rule out a bad port or cable.
4. Lower resolution/refresh in your computer's display settings; some adapters limit max bandwidth.
5. Update graphics drivers and restart the computer.
6. Some adapters need external USB power; check documentation.

If problems persist, check the product page for compatibility notes and consider contacting retailer support for returns or replacement.