This issue may be caused by a hardware-acceleration bug in macOS 27 Golden Gate that specifically breaks WebRTC video/audio playback when mixing different display types (like your Apple Studio Display and a third-party Dell monitor).
Because your MacBook Pro has an integrated display, it handles the dual-monitor handoff differently, which is why the bug isn't causing blackouts there.
The following steps will isolate and resolve both the Safari audio issue and the dual-monitor blackouts on your Mac Studio.
Fix the Chrome & Safari Video Blackouts (Disable GPU Acceleration)
The dual-monitor glitches are caused by the Mac Studio's M5 Max GPU mismanaging the frame rates and HDCP handshakes between the Apple Studio Display and the Dell monitor.
For Google Chrome:
- Open Chrome and click the three dots in the top-right corner, then select Settings.
- Type Hardware Acceleration in the settings search bar.
- Turn OFF the toggle for Use graphics acceleration when available.
- Click Relaunch. This forces Chrome to render the WebRTC video stream through software, eliminating the dual-monitor blackouts.
For Safari (Workaround for the Bug):
Safari does not allow you to manually turn off hardware acceleration easily. To stop the blackouts in Safari, you must move the Safari browser window completely onto your Apple Studio Display before initiating the VVS Televisit call. Leaving the window spanning or sitting on the Dell monitor triggers the Golden Gate video-routing bug.
Fix the Safari "No Audio" Issue (WebRTC Permissions)
Safari’s strict privacy model in macOS Golden Gate blocks inbound audio streams from specific jail/telehealth networks unless explicitly overridden.
- Open Safari and go to the VVS Televisit login website.
- In the top Mac menu bar, click Safari > Settings for [Website Name].
- In the pop-up menu that appears:
- Camera: Change from Ask to Allow.
- Microphone: Change from Ask to Allow.
- Auto-Play: Change to Allow All Auto-Play. (If this is set to "Stop Media with Sound", Safari will completely mute the incoming audio from the inmate).
Check macOS Audio Routing
Because you are using an Apple Studio Display (which has built-in speakers) alongside a Mac Studio, Golden Gate 27.01 can accidentally route browser audio to an unhooked or muted channel on the Dell monitor.
- While in your VVS Televisit call, open System Settings > Sound.
- Under Output, explicitly click Studio Display Speakers to force the audio away from the Dell display or the Mac Studio internal speaker
More info from Apple:
Connect displays to your Mac Studio - Apple Support
Change Sound settings on Mac - Apple Support
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Feedback - macOS - Apple