How to Configure Companion Mode, Dual-Screen Display, and Room Check-In in Google Meet

Hybrid meeting environments present persistent audio and visual collaboration challenges. When in-person participants gather in a physical conference room equipped with Google Meet hardware while remote attendees dial in from personal workstations, physical room participants often face an acoustic dilemma. Joining the call from a personal laptop to access chat, participate in polls, or share slide decks inevitably causes piercing microphone feedback loops and echo cancellation faults. To resolve this acoustic interference while empowering hybrid meeting equity, Google introduced Companion Mode in Google Meet. By joining in Companion Mode, users can check into conference rooms, participate in chat and Q&A, control presentation slides, and manage dual-screen setups without broadcasting duplicate audio or video feeds.

Understanding Companion Mode Architecture

Companion Mode decouples interactive meeting collaboration from audio/video transmission. When a device joins via Companion Mode, Google Meet strips the audio input (microphone) and audio output (speakers) at the WebRTC engine layer, preventing room audio howling. The table below delineates how Companion Mode compares against standard Google Meet participation:

Operational Capability	Standard Meet Join	Companion Mode Join	Hardware Conference Room Kit
Microphone & Audio Input	Active (captures local speech).	Completely disabled at driver layer.	Active room-wide beamforming microphone array.
Speaker & Audio Output	Active (streams remote speech).	Completely muted.	Active conference room soundbar / ceiling speakers.
Webcam / Personal Video Tile	Full-screen active participant tile.	Optional personal video framing tile (shows personal face feed).	Wide-angle room camera framing the table.
Interactive Tools Access	Full access to chat, polls, Q&A, hand raising.	Full access to chat, polls, Q&A, hand raising, whiteboard.	Limited to touch controller interface.
Screen Sharing & Presentation	Broadcasts display; takes over main feed.	Dedicated presentation stream without disturbing room mic.	HDMI ingest or wireless casting.

Joining a Meeting in Companion Mode

Users can initialize Companion Mode from the meeting pre-join green room screen or directly via a dedicated URL.

Method 1: Direct Join via Pre-Call Screen

1. Open the Google Meet invitation link in Google Chrome.
2. On the pre-join lobby screen (where your camera preview appears), locate the secondary options beneath the primary Join now button.
3. Click Use Companion mode.
4. Google Meet initialises the interface with your microphone, speakers, and camera disabled, bypassing audio handshakes immediately.

Method 2: Quick Navigation via Direct URL

If already present in a physical conference room, navigate directly to:

g.co/companion

Input the meeting code (e.g., abc-defg-hij) and press Enter. You are admitted into Companion Mode instantly without knocking or audio alerts.

Configuring Room Check-In for Hybrid Name Attribution

In traditional video calls, physical conference rooms are represented on screen by a single generic tile labelled with the room name (e.g., Boardroom 4B – London). Remote attendees cannot discern who is speaking or see individual participant names. Room Check-In links your personal identity with the physical room hardware.

Step 1: Executing Room Check-In

1. Once connected in Companion Mode on your laptop, look for the Room check-in prompt on the screen (or click the room check-in icon in the bottom toolbar).
2. A dropdown displays nearby Google Meet hardware rooms detected via Google Calendar room bookings or Bluetooth beacons.
3. Select your physical conference room (e.g., Executive Conference Suite).
4. Click Check in.

Step 2: Participant Name Attribution

Once checked in:

• Your personal name and corporate avatar appear linked adjacent to the conference room video tile across all participant screens.
• When you raise your hand using your laptop, Google Meet displays “[Your Name] in Executive Conference Suite raised their hand”, ensuring remote meeting leaders call on specific individuals rather than addressing the entire room collectively.
• Your active chat comments and poll votes are mapped directly to your corporate profile.

Enabling Dual-Screen Displays and Presentation Controls

Companion Mode enables presenters to manage complex slide shows without sacrificing visibility into audience chat and hand raises.

1. Dual-Display Presentation Architecture

1. Connect your primary laptop to the in-room projector or secondary external monitor via HDMI or USB-C.
2. Join the Meet on your secondary monitor using standard mode (or let the dedicated room hardware project the call).
3. Join on your laptop screen using Companion Mode.
4. Click Present now > A tab on your Companion screen.
5. Select your Google Slides deck.
6. Your laptop screen provides private speaker notes, upcoming slide previews, active meeting chat, and live Q&A panels, whilst the external monitor projects full-screen slides to attendees without displaying your desktop clutter.

Activating Personal Video Tiles in Companion Mode

While Companion Mode disables laptop microphones and speakers to prevent acoustic feedback, remote participants often appreciate seeing individual facial expressions rather than a distant wide-angle room camera view.

1. In your Companion Mode window, click the Turn on camera button in the bottom toolbar.
2. Google Meet activates your laptop webcam and creates an independent individual video tile on the participant grid.
3. This individual tile is labelled with your name and tagged with your checked-in room location.
4. Your microphone remains completely locked down and muted, guaranteeing zero acoustic echo while providing personal video presence.

Troubleshooting Common Companion Mode Incidents

When operating hybrid meetings, resolve common operational issues using these diagnostic steps:

• Accidental Audio Feedback: If a laptop in the room begins squealing with acoustic feedback, someone joined via Join now instead of Use Companion mode. The meeting host should immediately mute that user’s microphone or instruct them to leave and reconnect via g.co/companion.
• Room Check-In Not Appearing: Ensure your Google Workspace administrator has provisioned Google Meet hardware kits under Admin Console > Devices > Google Meet hardware and assigned them to structured Calendar room resources. Unassigned hardware rooms cannot link with individual Companion check-ins.
• Bandwidth Optimization on Corporate Wi-Fi: Because Companion Mode transmits video frames without receiving incoming video streams from other participants, it consumes minimal network bandwidth—typically under 1.5 Mbps—making it ideal for congested enterprise Wi-Fi networks where twenty employees occupy the same physical room.