If your Sonos Arc with PS5 Dolby Atmos not working, the cause is usually a setting mismatch rather than a broken soundbar.
This guide walks through the exact PS5, TV, and Sonos checks that determine whether Dolby Atmos will actually pass through.
Why Dolby Atmos may not activate on PS5 with Sonos Arc
The PS5 supports Dolby Atmos for games and media, but it is strict about the audio path.
For Atmos to reach the Sonos Arc, the signal must pass through a compatible TV or audio setup without being converted to standard 5.1 PCM or stereo.
The most common breakpoints are:
- PS5 audio output set to Linear PCM instead of Dolby Atmos
- TV HDMI port not supporting eARC
- eARC disabled in the television audio menu
- Incorrect HDMI cable or poor port choice
- Game console audio routed through an unsupported AV setting
- Sonos app showing stereo or Dolby Digital 5.1 instead of Atmos
Understanding where the chain fails makes troubleshooting much faster.
Check the required hardware path first
For the cleanest Atmos setup, the signal chain should be PS5 to TV, then TV to Sonos Arc through HDMI eARC.
The Sonos Arc does not connect directly to the PS5; it depends on the television to forward the audio properly.
What you need
- A TV with HDMI eARC support
- The Sonos Arc connected to the TV’s eARC or ARC port
- A PS5 connected to an HDMI input on the TV
- High-speed HDMI cables, ideally the cable included with the PS5 or a certified Ultra High Speed HDMI cable
Some TVs support ARC but not eARC.
ARC can carry compressed Dolby Digital Plus Atmos from streaming apps, but it is often less reliable for full Atmos passthrough from game consoles. eARC is the preferred standard for modern PlayStation audio.
Set the PS5 audio output correctly
The PS5 has several audio settings that affect whether Atmos is available.
Start in Settings > Sound > Audio Output.
Recommended PS5 settings for Sonos Arc
- Output Device: HDMI Device
- HDMI Device Type: AV Amplifier if your TV route requires it, or Soundbar if available
- Channels: 5.1 ch or 7.1 ch depending on your TV and setup
- Audio Format: Dolby Atmos when available for games or media
If Dolby Atmos does not appear, the PS5 may be negotiating the audio format based on what the TV reports.
In that case, changing the TV’s eARC, passthrough, or digital audio settings may be necessary before the PS5 exposes Atmos as an option.
Also check the separate Media audio settings if the problem appears only in streaming apps on the PS5.
Gaming and media can use different output behavior.
Adjust the TV settings that control passthrough
Many Sonos Arc Atmos problems are caused by the television, not the console.
TV manufacturers use different labels, but the relevant settings usually live under sound, audio output, or HDMI control menus.
TV settings to verify
- eARC: Enabled
- HDMI-CEC: Enabled if required by the TV for eARC communication
- Digital Audio Output: Passthrough, Auto, or Bitstream
- TV Speakers: Off or Audio System
- Dolby Atmos: Enabled if the TV offers a separate toggle
On some LG, Samsung, Sony, TCL, and Panasonic TVs, Atmos will only pass when audio output is set to passthrough rather than PCM.
PCM often strips multichannel metadata and prevents Atmos from reaching the Sonos Arc.
If you use an external source switch, capture card, or sound system input chain, remove them temporarily.
Extra devices can block eARC negotiation or alter the audio format.
Confirm Sonos Arc is receiving the right signal
Use the Sonos app to check what the Arc is actually receiving.
Open the app and inspect the playback information while the PS5 is active.
If the app shows Stereo PCM, Dolby Digital 5.1, or another non-Atmos format, the issue is still upstream.
Sonos Arc supports Dolby Atmos when the source and TV deliver it correctly.
However, the app will not force Atmos on its own; it only reports the incoming format.
What the Sonos app may show
- Dolby Atmos: Desired result
- Dolby Digital 5.1: Surround sound, but not Atmos
- Stereo PCM: Basic stereo output, usually a settings or cable issue
If the sound plays but lacks height effects, you may still be receiving compressed surround audio rather than true Atmos metadata.
Use the correct HDMI port and cable
On the TV, the Sonos Arc must be connected to the HDMI port labeled ARC or eARC.
Using the wrong port can stop Atmos passthrough entirely.
The PS5 should connect to a regular HDMI input on the TV.
If your TV has only one HDMI 2.1 port and it is also the eARC port, consult the television manual to confirm whether the PS5 can share that port or whether another input is required.
For cables, avoid old or unverified HDMI leads.
While eARC is more forgiving than earlier standards, unstable cables can still cause handshaking failures, dropouts, or limited audio formats.
Why streaming apps may work when games do not
It is common for Netflix, Disney+, or Apple TV content on the PS5 to behave differently from games.
Streaming apps often output Dolby Digital Plus with Atmos metadata, which some TVs pass more easily than real-time game audio.
Game audio on PS5 may rely on different encoding or passthrough behavior.
If streaming apps work but games do not, focus on the PS5 system audio format, TV eARC passthrough, and firmware updates rather than the Sonos Arc itself.
Update firmware and restart the entire chain
Firmware mismatches can break HDMI handshake behavior.
Make sure all three components are current:
- PS5 system software
- TV firmware
- Sonos Arc software through the Sonos app
After updating, power-cycle the whole setup.
Turn off the PS5, TV, and Sonos Arc, then unplug them from power for about 60 seconds.
Reconnect the TV and Sonos Arc first, wait until they are fully booted, and then start the PS5.
This sequence often restores eARC detection and corrects stale audio routing.
Troubleshooting by symptom
If the Sonos Arc shows stereo only
- Set TV audio output to passthrough or bitstream
- Enable eARC
- Change PS5 audio output from PCM to Dolby Atmos
- Replace the HDMI cable between TV and Arc if needed
If you get no sound at all
- Verify the Arc is on the TV’s ARC/eARC port
- Check that TV speakers are not set to another output
- Disable and re-enable HDMI-CEC
- Reconnect both HDMI ends securely
If Atmos works in one app but not another
- Check whether the app supports Atmos on PS5
- Review the app’s own audio settings
- Confirm whether the content title actually includes Atmos
Best-practice setup for Sonos Arc and PS5
For the most reliable result, use this setup order:
- Connect Sonos Arc to the TV’s eARC or ARC port.
- Connect PS5 directly to a compatible HDMI input on the TV.
- Enable eARC and passthrough on the TV.
- Set the PS5 audio output to Dolby Atmos where available.
- Confirm the Sonos app reports Atmos playback.
This configuration gives the TV the best chance to pass multichannel audio without downmixing.
When the TV may be the limiting factor
Some televisions advertise Atmos support but only pass it from specific apps or sources.
Others support Atmos over ARC from streaming services but not through game console input.
In those cases, the limitation is the TV’s audio processor or HDMI implementation.
For users who want the most consistent Atmos performance, a TV with robust eARC support from brands such as LG, Sony, Samsung, or Panasonic tends to be more reliable than older ARC-only models.
Still, exact behavior depends on model year and firmware.
Quick checklist for fixing Sonos Arc with PS5 Dolby Atmos not working
- Confirm the Arc is connected to the TV’s ARC/eARC port
- Enable eARC on the TV
- Set TV digital audio output to passthrough, auto, or bitstream
- Change PS5 audio output from Linear PCM to Dolby Atmos
- Update PS5, TV, and Sonos firmware
- Use certified HDMI cables
- Check the Sonos app for the actual incoming audio format
- Test both games and streaming apps to isolate the fault
When all of these settings align, the Sonos Arc should deliver Dolby Atmos from the PS5 with clearer spatial detail, improved separation, and the height effects the format is known for.