Why Is My Sonos Beam Gen 2 Playing No TV Sound
- TV audio output set incorrectly
- ARC/eARC disabled
- HDMI cable not seated
Problem Description
If TV sound is missing, the HDMI ARC/eARC settings or TV audio output may be wrong. This guide checks TV audio settings and reconnects the Beam.
Why This Happens in Real Homes
If TV sound is missing, the HDMI ARC/eARC settings or TV audio output may be wrong. This guide checks TV audio settings and reconnects the Beam. In day-to-day use, this usually looks like No sound from TV; Music plays in Sonos app; TV speakers off.
Most cases trace back to TV audio output set incorrectly; ARC/eARC disabled; HDMI cable not seated. The fix works best when you go step by step instead of changing multiple settings at once.
A practical order for this issue is: Check TV Audio Output -> Enable ARC/eARC -> Reseat HDMI -> Run Sonos Setup. After each step, test the exact behavior that was failing so you can confirm what actually solved it.
Symptoms
- No sound from TV
- Music plays in Sonos app
- TV speakers off
- HDMI cable connected
- Recent TV update
- Sound drops after switching inputs
Recognize these? Here's what usually causes it.
Common Causes
- TV audio output set incorrectly
- ARC/eARC disabled
- HDMI cable not seated
- CEC disabled
- TV audio delay settings
- Firmware mismatch
Most fixes happen in the first 3 steps.
If audio still fails, test with a different HDMI port that supports ARC.
Tools & Requirements
These tools will help you complete this fix.
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Step-by-Step Solution
Check HDMI ARC/eARC Connection
The Sonos Beam Gen 2 connects to your TV via HDMI. Plug the included HDMI cable into the HDMI ARC or eARC port on your TV (usually labeled HDMI 2 or HDMI 3 — check the port label). Plug the other end into the HDMI port on the back of the Beam. ARC/eARC sends TV audio back through the HDMI cable to the Beam. Using a non-ARC HDMI port will result in no sound.
Enable HDMI CEC on Your TV
HDMI CEC allows the TV to send audio to the Beam automatically. Go to your TV's settings and enable CEC (called different names by brand: Samsung = Anynet+, LG = SimpLink, Sony = Bravia Sync, Vizio = CEC). Also enable ARC or eARC audio output in your TV's sound settings. Set the TV audio output to External Speaker or HDMI ARC.
Switch TV Audio Output to HDMI ARC
On your TV, go to Settings > Sound > Audio Output. Select HDMI ARC (or External Speaker). If the TV is set to Internal Speakers, it will not send audio through the HDMI ARC port to the Beam. Some TVs require you to select a specific audio format — set it to Auto or PCM to start. If using Dolby Atmos content, eARC must be enabled on the TV.
Test with a Different HDMI Cable
A faulty HDMI cable can pass video CEC commands but fail to carry audio via ARC. Try the HDMI cable that came in the Beam Gen 2 box, or use a certified HDMI High Speed or Ultra High Speed cable. Cheap or old HDMI cables may not support ARC reliably. Connect the cable firmly at both ends.
Restart the Sonos Beam
Unplug the Beam Gen 2 power cable for 10 seconds and plug it back in. Wait for the front LED to turn solid white (indicating it is online). Also restart your TV by unplugging it for 10 seconds. When both devices restart, HDMI ARC negotiation happens fresh and often resolves audio handshake failures.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If this comes back after following these steps, check whether a recent app or firmware update reset a default setting — the fix works, but the setting gets reverted silently.
Use a high-quality HDMI cable rated for ARC/eARC.
This issue almost always looks more complex than it is — the majority of cases trace back to a single setting, a stale credential, or a default that shipped wrong.
- TV audio output set incorrectly
- ARC/eARC disabled
- HDMI cable not seated
- CEC disabled
- TV audio delay settings
Before you go — try one of these (they fix most cases).
Most popular upgrades chosen by Sonos Beam Gen 2 owners.
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Official Manufacturer Manual
Sonos provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your Sonos Beam Gen 2.
Source: sonos.com
Need More Help? Sonos Support
Note: The contact information below connects you directly to Sonos's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
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