MacDisplay — News, notes and guides https://macdisplay.it/news New versions, notes and guides on using a Mac you already own as a second display. en MacDisplay Latency Test: 70–80 ms Mac-to-Mac in 5K https://macdisplay.it/news/macdisplay-latency-test-mac-to-mac https://macdisplay.it/news/macdisplay-latency-test-mac-to-mac Sun, 06 Sep 2026 10:00:00 +0200 Two photographed Ethernet Clock Test observations between an M4 Pro MacBook Pro and a 2017 Retina 5K iMac show displayed offsets of approximately 80 ms and 70 ms. How to use an old iMac as a second monitor for your MacBook https://macdisplay.it/news/use-imac-as-second-monitor https://macdisplay.it/news/use-imac-as-second-monitor Sun, 30 Aug 2026 09:00:00 +0200 Target Display Mode, AirPlay, native 5K: what actually works on a 2014–2019 iMac, and how to turn it into a true extended second display. MacDisplay 2.1.0: smoother visuals, less strain on your older Mac https://macdisplay.it/news/macdisplay-2-1-0 https://macdisplay.it/news/macdisplay-2-1-0 Sat, 29 Aug 2026 10:00:00 +0200 Automatic screen matching, a much lighter load on the Mac acting as your display, and the black screen fixed at the root.