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All replies
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Helpful answers
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Mar 31, 2016 3:47 PM in response to dpuchekby dpuchek,Note to above. The Macbook with the apple USB-C Digital AV Multiport adapter will only "mirror your MacBook display to your HDMI-enabled TV or display in up to 1080p at 60Hz or UHD (3840x2160) at 30Hz.
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Mar 31, 2016 3:49 PM in response to dpuchekby dpuchek,Note, note: I cannot find a USB-C multiport adapter that will provide a displayport or HDMI 2.0 conection.
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Apr 1, 2016 6:31 PM in response to dpuchekby Lanny,The 12" MacBook is not capable of 4k with a 60 Hz refreesh rate, only 30 Hz.
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May 3, 2016 11:32 PM in response to dpuchekby jaydisc,Can someone tell me what 30Hz means is real world use? I have no intention of gaming or watching anything beyond the occasional YouTube. Am I going to notice this?
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May 4, 2016 12:14 AM in response to jaydiscby Lanny,From:
Refresh rates with 4K panels are also somewhat of a concern. A number of the more affordable 4K displays currently on the market offer only 30Hz refresh rates. The typical refresh rate of a mainstream display is 60Hz, and fast gaming-monitors can offer as high as 144Hz. Although some would argue that 30Hz is fast enough for video and image editing, the user experience with a 30Hz display can be nauseating. Mouse and window movements are jerky, and the smoothness we’ve all become accustomed to using 60Hz (or faster) displays goes right out the window. Stick to a 60Hz or higher display if at all possible.
Also, see: http://www.testufo.com/#test=framerates
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May 4, 2016 12:29 AM in response to Lannyby jaydisc,OK. Thanks for that. It's 60Hz or bust for me. It seems that HDMI is the issue. The CalDigit Dock has DisplayPort and supports 60Hz at greater than 1080p. This mirrors my experience of trying to drive a Dell 27" at its maximum resolution from a MBP. It couldn't be done over HDMI or DVI. Only DisplayPort.
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May 4, 2016 12:34 AM in response to jaydiscby Lanny,Once again, the 12" Retina MacBook won't do 4K @ 60 hz with any combination of adapters.
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May 4, 2016 12:43 AM in response to Lannyby jaydisc,What is your basis for that statement?
CalDigit does not agree (see the table at the bottom): http://www.caldigit.com/USB-C/
MacWorld seems to allege that the Google adapter works as well (though they're not specific):
http://www.macworld.com/article/2914011/usb-c-adapters-and-cables-the-first-batc h.html
https://store.google.com/product/usb_type_c_to_displayport_cable
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May 4, 2016 12:48 AM in response to jaydiscby jaydisc,Also, I'm not particularly interested in 4K. I'd be happy with 2560 x 1440.
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May 4, 2016 2:11 PM in response to Lannyby jaydisc,This is a relatively unique situation for Apple. This is their first Mac that does not include a video connector. It seems quite reasonable to me that this page therefore reflects the specifications of their own connector, i.e. USB-C Digital AV Multipart adapter, which is indeed limited to 30Hz. Does anyone have any insight as to the power of the chipset and/or the bandwidth of USB-C?
As a counterpoint, my understanding is that the MacBook does support 60Hz at 1080p, which does not seem to be reflected on that page. What about resolutions in between 1080p and 2160p?
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May 4, 2016 2:18 PM in response to jaydiscby jaydisc,Hydradock says they have it working (over DisplayPort, NOT HDMI):
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May 4, 2016 2:36 PM in response to jaydiscby Lanny,Not @ 60 hz for 4k, and it's not a shipping product.
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