In 2023, Apple unveiled macOS Sonoma, introducing the High Performance screen sharing feature to the Mac’s native Screen Sharing application. This enhancement significantly improves screen sharing by offering reduced latency, stereo sound output, and HDR support, among other benefits. Professionals using applications like Final Cut Pro or Logic Pro will find this feature particularly advantageous, as it enhances the remote usage experience with minimal drawbacks.
Requirements for High Performance Screen Sharing
To utilize High Performance screen sharing, both computers must be Apple Silicon Macs running macOS Sonoma 14 or later. For instance, connecting a 16-inch M4 Pro MacBook Pro to a headless M4 Mac mini is a suitable setup. Additionally, a high-bandwidth, low-latency network connection is essential. Apple recommends a wired network with at least 75 Mbps for a single 4K display. Setting up a gigabit Ethernet bridge between the Mac mini and a Thunderbolt hub can provide sufficient bandwidth to meet these requirements. It’s also important to ensure that UDP ports 5900, 5901, and 5902 are accessible on both Macs.
Steps to Enable High Performance Screen Sharing
1. Enable Remote Management on the Host Mac: Navigate to Settings → General → Sharing, and activate Remote Management.
2. Configure User Permissions: Click the ‘i’ button next to Remote Management and add a user with the necessary permissions.
3. Ensure a Stable Network Connection: Verify that there’s a stable connection of at least 75 Mbps between the host and viewer.
4. Open Screen Sharing on the Viewer Mac: Access Screen Sharing via Applications/Utilities.
5. Authenticate the Connection: On the Connections page, select the Mac you wish to connect to and authenticate using the username and password.
6. Select High Performance Mode: For Screen Sharing Type, choose High Performance.
7. Choose Display Type: Opt for either 1 Virtual Display or 2 Virtual Displays.
8. Initiate the Connection: Click Continue to start the session.
Advantages of High Performance Screen Sharing
– Reduced Latency: Experience improved responsiveness and frame rates up to 60fps, making remote control feel almost native. This is especially beneficial when working with applications like Final Cut Pro, where editing timelines remotely becomes seamless.
– Enhanced Audio Quality: High Performance mode enables stereo sound and routes audio from the host Mac to the viewer Mac’s speakers. This feature is particularly useful for music applications like Logic Pro, where low latency is crucial.
– Improved Color Accuracy: The mode supports HDR reference and 4:4:4 chroma subsampling, allowing users to edit and view HDR video content in full quality on compatible displays.
– Dual Virtual Displays: Users can enable a second virtual display, facilitating multitasking by allowing full-screen mode on one app while using other apps on the second display.
– Dynamic Resolution: If the viewer’s display has a different native resolution or aspect ratio, the Dynamic Resolution feature adapts the screen sharing session to fit the display settings, providing a full-screen experience on various devices.
Limitations to Consider
– Single Session Restriction: Only one High Performance session can be initiated at a time on each Mac.
– Display Privacy: During a session, the displays connected to the host Mac are blanked for privacy and cannot be used by others.
– Resolution Constraints: The maximum resolution for virtual displays in High Performance mode is 4K (3840 x 2160) or 1920 x 1080 when using HiDPI settings.
Conclusion
High Performance screen sharing in macOS Sonoma significantly enhances the remote control experience on Macs. It offers a viable solution for users who need to connect to high-powered, headless machines like the Mac Studio from less powerful devices such as the MacBook Air. With a high-bandwidth connection, users can leverage the resources of a more powerful machine remotely, making it a valuable tool for various professional applications.
Twitter Post: Enhance your Mac’s remote control experience with macOS Sonoma’s High Performance screen sharing. Enjoy reduced latency, stereo sound, and HDR support. #macOS #ScreenSharing #Apple
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