Model A1621 supports HDMI 1.4b at these resolutions and refresh rates when used with macOS Sierra 10.12 or later or iOS 12 or later:Īfter connecting your display, TV, or projector, video from your Mac or iPad should appear within 10 seconds. 13-inch MacBook Pro introduced in 2016 or later.3840 x 2160 at 30Hz with these devices: USB-C Digital AV Multiport Adapter lets you connect your USB-C or Thunderbolt 3 (USB-C) enabled Mac to a HDMI display, standard USB device, and charging cable.Retina iMac introduced in 2017 or later.
I am using the PowerExpand Direct 7-in-2 USB C Adapter with a M1 MacBook Air.
Model A2119 is the newest model of this adapter. The model number is printed on the retail box and the side of the adapter, near the ports. It's HDCP compliant and supports the specifications below, depending on the model of the adapter. Keep in mind that the port supports HDMI 2.0, so the maximum resolution and refresh rate it can run is 4k at 60Hz.Use the HDMI port of this adapter with a display, TV, or projector that connects using an HDMI cable. You can use a regular HDMI cable like the theĪmazon Basics HDMI cable ($8/£8 on Amazon) and plug it in. If you have the 14- or 16-inch MacBook Pro or Mac Studio, they have a full-sized HDMI 2.0 port. USB C to HDMI Adapter 4K for Mac OS, Type-C to HDMI Adapter Thunderbolt 3, Compatible with MacBook Pro 2019/2018/2017, MacBook Air, Galaxy, Dell XPS. To connect a display with mini DisplayPort, you need one like the £30 on Amazon UK, and it supports 4K video at 60Hz. Amazon sells theĬable Matters USB-C to DisplayPort Adapter cable for $18, or To connect to a DisplayPort display, you need a USB-C to DisplayPort cable or adapter. So there probably will be no fix coming from Apple. Apple declared these displays as “Vintage” in July 2021, which means that the company will not supply parts for repairs, nor do they promise to provide OS support.
Apple has not addressed the issue, which seems like it could be a compatibility problem with the M1’s GPU.
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