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Are you using a thunderbolt 3 cord that made all the difference
Sorry, there was a problem. Please try again later.The LG 27 Inch UltraFine 5K IPS Monitor with macOS Compatibility, Model # 27MD5KL-B does not have any physical buttons on it and with seamless macOS integration, you can control volume and brightness on the display without the need for physical buttons. When you plug the LG Ultrafine 5K into a MacBook Pro, two things happen immediately. One, the monitor will start charging the MacBook, and two, the monitor will automatically set itself up as a second display. When the Ultrafine 5K is plugged into a MacBook, MacOS automatically detects and configures the monitor to act as a second display, like it does for most external monitors. These features are handled inside MacOS and not in the monitor. If you need assistance, please contact our Support Center at (800) 243-0000 or contact Apple...^IFV
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