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A comment on Apple's follow-up to M1 chip goes into mass production for Mac. Parent comment

Re:Apple's follow-up to M1 chip goes into mass production fo... by lizknope on Tuesday April 27, 2021 @10:15AM (#26956155)
Does it support two 4K monitors now?

I have an old Macbook from 2013 that runs Linux now with an Intel integrated GPU and it supports dual 4K monitors at 30Hz. I use the Thunderbolt ports as Mini DisplayPort outputs and connect to two 4K monitors with DisplayPort and it works fine.

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Re:Apple's follow-up to M1 chip goes into mass production fo... by clashmoore on Tuesday April 27, 2021 @10:30AM (#26956349)
M1 laptops can only support one external display at 6k and 60Hz. The other video goes to the laptop's own display. Even if you use the laptop closed in clamshell mode you can't connect or daisy chain to more than one external display.

The mini can support two external displays. One via thunderbolt at that same 6k and 60Hz and the other a 4k at 60Hz through the HDMI port.

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Re:Apple's follow-up to M1 chip goes into mass production fo... by staticfloat on Tuesday April 27, 2021 @11:29AM (#26957273)
Note that the restriction on external monitors can be worked around by using a DisplayLink compatible dongle/dock, since it uses a custom driver (I assume it does something in software that would otherwise be limited in hardware).

I use the Dell D6000 and I run three (1080p) external monitors in addition to the built in monitor.

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Re:Apple's follow-up to M1 chip goes into mass production fo... by clashmoore on Tuesday April 27, 2021 @01:51PM (#26959180)
I've been trying to find a DisplayLink dock that can output video via USB-C or Thunderbolt. Everybody's shared solutions always involve HDMI connections, never USB-C.

I have two Thunderbolt/USB-C monitors that I was hoping to daisy chain with one wire from my Mac. Alas it's not possible.

My hope is power into a dock. Thunderbolt from dock to laptop to power laptop. Thunderbolt/USB-C from dock into first monitor. Second Thunderbolt/USB-C from dock using the DisplayLink tech to second monitor.

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Re:Apple's follow-up to M1 chip goes into mass production fo... by jsjohnst on Tuesday April 27, 2021 @03:04PM (#26960044)
You won’t find a Displaylink adapter that supports Thunderbolt monitors. It just won’t work from a technical aspect.
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Re:Apple's follow-up to M1 chip goes into mass production fo... by jacobolus on Tuesday April 27, 2021 @01:52PM (#26959185)
Three 1080p displays add up to 3/4 the bandwidth of one 4k display, at the same framerate.
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