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Comment by rektide | Hacker News Reader

Expect the unexpected. It doesn't have to be a rational known ask. We are Hackers. We want to be ready for whatever. That day when there's a 4 screen display wall? Ready. Connecting to a thunderbolt NAS, a display, a desktop, and our friends laptop? Ready.

"What is the use case" is the deadening soul sucking most un Hackerly thing to ask. Computers are amazing general purpose machines & we celebrate their flexible utility. We don't know where flexibility always leads but we value it. We value open systems, open possibilities, open frontiers, not being bounded.

Edit: based on the voting, I guess only some of us on HN are Hackers! I also have example use cases too, to be constructive, but guess that's not enough for the cynics.

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A "hacker" is someone who makes something do what it wasn't intended to do. Plugging a high-end laptop into the correct number of monitors is not hacking.

Maybe stick to Intel chipsets if you must have 4 screens. Or maybe cover over the 4th port, and pretend you have 3 fully-functional ports?

That's a pretty good definition. It think there's more an element of being able to pull off the not forseen. A good code hacker isn't exactly defying computer architecture to extract their wins; they're finding brilliant solutions & cobbling together interesting systems that happen to meet the needs.

I think AMD needs the pressure. 4x Thunderbolt 4 is amazing. AMD offering 2x USB 4 is such a massive downgrade. Just a shake of the head & saying "go buy Intel" as if this is some natural expected unnoteworthy situation doesn't cut it for me.

IIRC, USB4 Full is pretty much TB3 plus some extensions... So probably shouldn't really be a deal breaker. You can still use a TB dock and an eGPU. USB4 can support 20-40gbps, TB3 is 16, and TB4 is 36.

Not quite. USB4 is based on TB3, but interoperability with Thunderbolt 3 is optional for hosts and devices. You could use any TB4 dock and USB4 dock that have USB4 upstream ports.

40gbps, 20 gbps (in 3.2 mode), PCI-E are all optional for host.

It's a mess, but I assume "fully capable USB4 ports" means that they are indeed fully capable. 2 "full" USB4 ports imo enough. I'm not plugging 4 monitors into my laptop directly, that's what the dock is for.

That's what I meant by "full" USB4... in that you get TB compatibility and higher speed... One third port on one side also has displayport mode over usb or can use an hdmi adapter on that port. Only 1 isn't capable of display out, and 2 are capable of high speed connections (external gpu or dock).

In the end, I do think the connectivity, while less than the Intel option, is probably enough for most people for most uses. I honestly don't use my personal laptop much and my work laptop is pretty much always docked to my TB3 dock at my work desk.

Any reason why you can't hook up that 4 screen display wall and that NAS at the same time by chaining DisplayPort and/or using a USB4 hub?

To me, being hackers means finding ways of circumventing limits, rather than expecting all kinds of connectivity to just be handed to you the easiest possible way.

> Edit: based on the voting, I guess only some of us on HN are Hackers! I also have example use cases too, to be constructive, but guess that's not enough for the cynics.

What's attracting downvotes is more likely to be gatekeeping language like this.

I wasn't being super fair nor nice, but I very much felt like I was trying to combat gatekeeping. I was advocating for open & possible, against someone who was trying to shut people down.

Intel has 160 Gbps of throughput available for connectivity. You might be able to physically get data to all the same devices with AMD, but at much reduced bandwidth, and the job wont be as easy. And you won't be able to use thunderbolt peripherals like external GPUs, if those are available.

....then get the Intel processor?

Your external GPU may support USB4. Will depend on the enclosure.

> And you won't be able to use thunderbolt peripherals like external GPUs, if those are available.

USB4 is Thunderbolt and the article explicitly mentions eGPUs work.

USB4 definitely does not require PCIe transport. (it does however require DisplayPort.) Once you have usb4 though, yeah, adding PCIe shouldn't be that much more work-you've already done the hard stuff. Which is part of why I've felt so cheated, thinking AMD hasn't done PCIe in their usb4.

This is, if true, very good news.

There was no intention of gatekeeping. I was truly curious why someone would see that configuration as a deal-breaker.

What alternative laptop do you have in mind for running a 4 screen display, that's also hackable?

"Why?" is a very properly hackerly question.

Agreed. Generally best used against systems & plans. Wanting to know how something ticks.

Using it as a cudgel against open frontiers happens too. I guess it's more a disposition of the person here. Personally I find that stark conservatism to be heinously ugly.

What is sometimes a very fine question, especially if someone is struggling to get to success. Recognizing the other cases though, where there are unknowns & where we want to have Postel'lian possibilities, where we want many small pieces we can loosely couple, where we aren't just trying to make it through right now but are trying to work for longer answers... I think the "What is the use case" is often a complete rejection of open thinking, is the mind closing.

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