How to Connect Steam Deck to TV (Step-by-Step)
Connecting your Steam Deck to a TV takes under a minute with the right cable or dock. You get your full Steam library on a big screen, with full controller support from the Deck itself or any Bluetooth controller you pair to it.
What You Need
The Steam Deck has a USB-C port that supports DisplayPort Alt Mode. You need one of the following:
- USB-C to HDMI cable — cheapest option (~$10–15), plug directly into TV
- USB-C hub with HDMI — adds USB ports, keeps charging while connected (~$25–40)
- Steam Deck Dock — Valve’s official dock ($79), adds 3x USB-A, HDMI, DisplayPort, and Ethernet
- Third-party dock — same functionality as Valve’s dock for less (~$30–50)
Any USB-C cable that supports video output will work. Not all USB-C cables do — check that yours says “DisplayPort Alt Mode” or “USB-C video” on the packaging.
Step-by-Step: USB-C Cable Method
Step 1 — Plug the USB-C end into your Steam Deck and the HDMI end into an open port on your TV.
Step 2 — On your TV, switch the input to the HDMI port you plugged into.
Step 3 — Your Steam Deck screen should mirror to the TV automatically. If it doesn’t, go to Settings → Display on the Steam Deck and tap “Mirror Display.”
That’s it. The Steam Deck becomes a controller while the game plays on the TV screen.
Step-by-Step: Dock Method
Step 1 — Plug the dock’s USB-C power cable into a wall charger (use at least a 45W charger to charge while playing).
Step 2 — Connect an HDMI cable from the dock to your TV.
Step 3 — Slide the Steam Deck into the dock or plug its USB-C cable into the dock’s pass-through port.
Step 4 — Switch your TV to the correct HDMI input. The image appears automatically.
With a dock, you can also connect a USB keyboard and mouse for Desktop Mode, a wired controller, or an Ethernet cable for faster downloads and cloud gaming.
Resolution and Display Settings
By default the Steam Deck outputs at 1080p to an external display. Most TVs support this natively. To change resolution, go to Settings → Display → External Display Resolution.
The Steam Deck can output up to 4K at 30Hz or 1080p at 60Hz through HDMI 2.0. For gaming, 1080p/60Hz is the right choice — the GPU isn’t powerful enough to push 4K in demanding games anyway.
If your TV looks blurry or overscan is cutting off the edges, go to your TV’s settings and look for “Display Mode,” “Picture Size,” or “Aspect Ratio” — set it to “Screen Fit” or “Just Scan” to show the full image correctly.
Using a Separate Controller
When connected to a TV, you might prefer a separate controller rather than holding the Steam Deck. Any Bluetooth controller works:
- PS5 DualSense — hold the PS + Create buttons to pair, excellent haptics
- Xbox Wireless Controller — hold the connect button, works immediately
- Nintendo Switch Pro Controller — pairs via Bluetooth, good battery life
To pair: go to Settings → Bluetooth on the Steam Deck, put your controller in pairing mode, and select it from the list. Once paired, it stays connected automatically whenever it’s turned on near the Deck.
Performance on TV vs. Handheld
Most games run identically whether on the handheld screen or a TV. A few demanding titles may drop frames at 1080p where they ran fine at the Deck’s native 800p — this is normal. Lower the game’s internal resolution to 720p or enable FSR to restore performance if this happens.
The Steam Deck doesn’t have a fan mode change when docked — it runs at the same thermal profile as handheld mode. If you want better sustained performance while docked, go to the Performance settings and raise the TDP limit to 15W.
Best Docks for Steam Deck
If you’re buying a dock, the Valve official dock is reliable but pricey. Third-party options like the JSAUX or iVoler docks offer similar functionality for $30–40 and work without issues. The main things to look for: HDMI 2.0, USB-C passthrough charging, and at least two USB-A ports.
See our full roundup: Best Steam Deck Docking Stations
👉 Shop Steam Deck docks on Amazon