You can connect many laptops, tablets, and phones to a TV using a USB‑C to HDMI cable or adapter, but the USB‑C port must support video (often called Alt Mode).

• Check compatibility: Look in your device specs for video over USB‑C (Alt Mode).
• Pick the right cable/adapter: Match your TV’s needs—1080p, 4K@60, or higher with HDMI 2.1‑rated gear.
• Connect and select input: Plug USB‑C into your device and HDMI into the TV, then choose that HDMI input on the TV.
• Adjust display settings: Set mirror or extend, and choose a supported resolution.
• Mind direction: Most cables are one‑way (USB‑C source → HDMI display). Going HDMI source → USB‑C display needs a specialized converter.

Results can vary by device and cable quality. Reviewing each item’s specs on Walmart can help you confirm supported modes.

Picking a USB‑C to HDMI cable comes down to what your device supports and what your TV or monitor needs.

• Compatibility: Confirm your USB‑C port supports video (Alt Mode). Some ports are data/charging only.
• Resolution & refresh: For 1080p, most cables work. For 4K@60, look for HDMI 2.0 or higher. For higher bandwidth (like 8K), consider HDMI 2.1‑rated options.
• Length: Shorter cables are usually more reliable at high resolutions. If you need 10 ft or more, choose a high‑speed, well‑shielded cable.
• Build & extras: Braided jackets and strain relief can add durability. If you need power and video together, consider an adapter with pass‑through charging.

On Walmart, check each product’s resolution, refresh, and features to match your setup.

Several common factors can interrupt a USB‑C to HDMI connection.

• Video support: The USB‑C port may not output video (Alt Mode). Verify in your device’s specs.
• Direction: Many cables are unidirectional. Ensure you’re going USB‑C (source) to HDMI (display), not the reverse.
• Power: Some adapters are more stable with external power, especially with phones/tablets.
• Settings: Select the correct HDMI input and choose a supported resolution/refresh in display settings.
• Software: Updating system firmware or graphics drivers can improve compatibility.
• Hardware: Try a different HDMI input, a shorter cable, or a different port to rule out issues.

Connecting an HDMI source to a USB‑C display requires a purpose‑built converter rather than a standard USB‑C to HDMI cable.

Audio can pass through a USB‑C to HDMI connection, but a few settings can affect it.

• Capability: Confirm your device outputs audio with USB‑C video (Alt Mode) and that your cable/adapter supports audio pass‑through.
• Sound settings: Set the HDMI output (your TV/monitor) as the default audio device in your system’s sound menu.
• Display options: Try switching between stereo and bitstream if you have surround content and it’s not playing.
• Basics: Verify the correct HDMI input is selected and volume isn’t muted on the TV/monitor.
• Power: If your adapter includes power pass‑through, connecting a charger can help maintain stable audio/video.

If audio still doesn’t play, test another HDMI port or cable, or try different content, as app behavior can vary.

Running two HDMI monitors from one USB‑C port is possible, but it depends on your device and adapter.

• Device support: Check that your USB‑C port supports video (Alt Mode) and multiple external displays. Some devices only allow one display or mirroring.
• Adapter type: Use a USB‑C hub/dock that specifically lists dual HDMI outputs and the maximum supported resolutions (e.g., dual 1080p or dual 4K).
• Drivers: Certain multi‑display adapters may require software. Review product details before purchase.
• Power: Powering the hub/dock can improve stability for two monitors.

On Walmart, filter for multi‑display USB‑C adapters and confirm supported modes to match your laptop, tablet, or phone.