Comment by exmadscientist
4 hours ago
I worked with some of the people responsible for the Surface Book, Surface docks, and specifically the Surface Book's dock. These were hardware people (EEs), not software people, and this was after their time at MS. Unfortunately I don't remember specifics (both because it's been a few years, and because I'd probably have to fuzz details anyway), but... :
Docks are horrifying products. Thunderbolt docks are doubly horrifying. They ordered in every single competing dock they could find, from that era's products, and found that every last one was garbage in some way or other, usually fatally so. The Thunderbolt interface in particular, and the firmware that needed to run on that interface controller, was the source of a lot of issues. None of them were particularly intrinisc to the protocol, but the hardware available was junk and the software available was worse. They couldn't really order up a custom non-garbage IC just for a $100 accessory that sells in limited volume. (Apple, however, could and would; they'd also demand to control the whole stack. This shows.)
They were very proud they got the thing working as well as they did, even though they all knew it was still pretty much trash. It was still better than the competition. Which is sad, but what can you do?
(At least it wasn't the Wi-Fi chip. The Surface Book's Wi-Fi adapter was chosen by higher-ups as the same one used in the XBox, presumably for sourcing reasons. It is trash. Again, much blood, sweat, and tears were spilled making it work as well as it does.)
(I also have the exact circuit for the LED that lights up on the charger cable. Apparently it was a big deal, which I find hilarious.)
I've been using the Apple USB-C multi port adapter thing since I got one free from a previous job, it seems overpriced since I can see a lot of similar ones much cheaper from competitors, but I've also never had an issue with it in any configuration on any device including non Apple ones. While I regularly see people having issues with the cheaper ones from Dell or Amazon sellers. So maybe you really are getting something extra when you pay for the Apple one.
My team (Microsoft Band) discovered the reason why the surface's keyboard sometimes wouldn't work when connected. There was a hardware bug in the cortex MCU the keyboard used involving waking from deep sleep. One of our FW engineers spent several months figuring it out and eventually reported it to the manufacturer, and to the Surface team. IIRC it was something about wake on interrupt in a specific deep sleep mode and also something around timing.
It was a rather nasty bug. Firmware is full of nightmare scenarios like that.
The fact they are stuck with the concept of a dock being something the computer needs to physically sit in is just funny to me. I have a "dock" for my MBP that is just a little box that everything connects to that doesn't leave my desk. When I connect my MBP to it, I just plug in the single cable to it. If the cable goes bad, it hasn't in the 3+ years of use, I would just swap out the cable.
I’ve been doing this for about a decade with thunderbolt 2 then 3 (and backwards compat with 4).
I’ve had one cable begin to fray in all that time (a thunderbolt 4 caldigit cable). It swapped it out for an Apple cable and kept going.
I’ve used OWC docks, which aren’t known to be the best, but have worked great for charging, usb, Ethernet, FireWire, display (both over daisychained thunderbolt and display port), and SD cards. The only thing I have used them for extensively is audio. My monitor is a Thunderbolt 2 monitor with USB breakout. In between it and the dock is a two drive SATA enclosure.
I recently threw an extra Thunderbolt 3 dock I had on a USB-4 mini computer running Linux and it worked without any issue.
I’m sure there may be things that don’t work well, but its worked for me. I even wrote an app to have a global hot key to eject all my attached disks (DriveLight). Press the key combo, wait for the eject sound, pull the cable and go.
> They ordered in every single competing dock they could find, from that era's products, and found that every last one was garbage in some way or other, usually fatally so.
It is so hard to believe that when more than 1000 employees at my employers are also using at least one dock (Dell and Thinkpad both) and using them very well.
We are talking about a situation some years past. I member there were USB docks that if you had them attached to external power and ethernet, but not a laptop, they'd instant-kill the network by sending garbage frames that would cause switches to fault off.
Only around 2024-ish the situation with USB and TB docks seemed to stabilize.
I had a CalDigit TB dock -- maybe 2021-ish? -- that every time I unplugged my MacBook would take my internet offline. I thought I was insane. How is that even possible? But I finally gave up and returned it.
Thanks for finally answering this mystery for me.
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> It was still better than the competition
Plenty of cases where Surface isn't. Microsoft like to think they can make hardware but they're no better than other OEM and it's clearly not a focus for them
Microsoft has built some good hardware over the years. The problem with this is that it runs windows. The hardware is probably nice.
When I worked at Microsoft (years ago), some employees had Surface laptops. They frequently had issues where the laptop just wasn't working right and required rebooting, at the start of a meeting where they wanted to connect the Surface laptop to a projector. Always the Surfaces, never the Lenovos. One of the Surface things split into two parts, the screen (containing the actual computer) and the keyboard. There was something weird about connecting and disconnecting those parts, some motorized docking/undocking mechanism, that caused problems.
Then Microsoft had the episode where some of their Surface hardware would not reliably stay in sleep mode and cooked itself while being transported in a bag. At the time, Microsoft tried to excuse this by claiming that "a fundamental Computer Science problem" needed to be solved to fix this issue. Strange how other manufacturers could do this without overcoming unsolvable problems in frontier CS research.
While I'm usually a die-hard Microsoft fanboi, I have concluded that their Surface line is terrible.
This is even more of a knock to Microsoft but the overheating during sleep issue can affect any windows laptop made in the last 5 or so years. The cause is nothing surface specific, it’s Microsoft enforcing “Modern standby” and blocking S3/S4 sleep states in windows. My best understanding is that some bug causes the system to stay awake after one of the periodic wake ups to check for updates/notifications that happen in modern standby.
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the split thing got updates that juat made it unable to be removed except while the device is restarting
but also, it was really easy to accidentally lock the screen while removing it, at which point youd put it back on to get the password filled in again
that and if the battery got low, youd be stuck with it in the wrong configuration, so the screen would get scratched
clearly they werent mechanical engineers - the dock bent my pro-3 and shattered the screen
the clamp around setup was a very poor choice
Not an EE but I'll add an anecdote as a user.
I went through a period of using a Macbook Pro with a dock. At the time the best option seemed to be the Caldigit TS3. It's a sleek device but luckily someone else was footing the bill because:
- 3 of them failed on me. THREE;
- You really learn how bad cables are. I got in the habit of ordering 2-3 at a time because experience taught me that at least 1 of them would be bad or die;
- It exposed just how bad the USB-C situation was (and still is). Is this just a power cable? Or you want data too? How about an alt mode so you can do DisplayPort passthrough? Well good luck with all that. There's no cue that the cable can do any of that. And if a cable can, it's typically 3 feet or less in length, expensive and prone to failure.
A lot of people don't know how complex a modern USB-C or Thunderbolt cable really is. It typically has a chip in each end of the cable. So the failure mode is not just the cable, it's the two chips as well. Bend or twist the cable too much. Gone. Damage the head of the cable. Gone.
Oh and USB-C is made more complex because it can be plugged in either way. The cable and the chips at either end and the controller on either side need to be able to seamlessly handle all 4 combinations (or 2 of the cable is truly symmetric pin-wise; it might be, I'm not sure).
I hope that this tech is more stable now but I honestly doubt that it is.
I'm reminded of an old quote I heard (not sure from who) that said we went from a world where no cables fit but if they did, it worked, to a world where the cable always fit but nothing works. That's USB-C in a nutshell.
Docks have to handle a lot of bandwidth. Even passthrough requires bandwidth. It's a nice idea but it's a hard problem.
I’m a little surprised to see how much trouble people in this thread have had with the Cal Digit TS3.
Mine works pretty well — have used it with three Intel MacBooks in the past and now currently two different Apple Silicon MacBooks.
One of the Intel MBPs did not like it. Would reboot every time I unplugged it from the dock. I blamed that MacBook for that one, since nothing else was ever a problem. I sent every crash report to Apple, along with some choice words that my $2,500 MacBook should be able to handle connecting to a very commonly owned TB Dock. Eventually they did fix it and it stopped being an issue.
Has ended up one of the more reliable pieces of tech gear in my life, especially given the absolute mad complexity of TB3 behind the scenes.
Yeah, I've had 3 CalDigit docks (USB-C Dock, TS4 and Element 5) and they've all been bulletproof.
I will note that mine have all functioned as docks for effectively-stationary PCs, so there's basically zero cable wear happening.