How is the difference between liquids and humidity detected?
Macs can now inform Apple if any liquids have been detected in the USB-C ports
291–300 of 351 posts
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#292Possibly not related, but my past two Samsungs have had this feature and it drives me crazy. Usually they seem to trigger when using non standard cords and from 0% battery life. This means that I get a very loud warning sound triggering when trying to charge my phone from a battery pack or borrowing someone's cord. Oddly, charging when on (ie not completely dead), this feature doesn't trigger the alarm. I really disl…
You really dislike a feature that plays a loud sound instead of shorting pins in you USB-C connector together? Guess what is more annoying than a loud sound.
What?? Those aren’t the only options, the other option is that the device operate correctly…
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#293Earlier quoted context omitted.
Sure, this is the same principle of, eg, the mineral oil cooled PC: https://www.pugetsystems.com/mineral-oil-pc/
Also some companies like 3M actually make a collection of liquids specifically for immersion cooling in data centres, so it's mature enough that people are happy to use it even in a data centre setting.
Very mature, going back to at least 1985 in the Cray-2.
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#294Earlier quoted context omitted.
This is Mac, not iPhone.
Read the first paragraph: >> Apple’s limited warranty doesn’t cover damage caused by liquids, even for water-resistant products like the iPhone, Apple Watch, and some AirPods models.
Not sure what you're referring to. The parent comment specifically mentioned iPhones, waterproofing (not a Mac feature), losing headphone jack (not true of Macs). I was clarifying this article is about Macs, not iPhones.
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#295Earlier quoted context omitted.
What do you mean? I have 3 connected to mine
Do you have to use that displaylink software with terrible framerate and latency compared to native? I tried to get 3 monitors working on a work Mac with a new triple DisplayPort dock and had a terrible time, I went back to my Linux desktop since I can easily get smooth 165hz native performance on three monitors
I use a dual DisplayPort doc then connect one monitor directly. I'm running 2x 1440p and 1x 1440p ultrawide this way. This is a work setup, so I don't really need massive performance. It's all 60hz and no noticeable latency.
I don't believe that triple DisplayPort works well with mac. I believe two is the limit.
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#296That's great, hopefully this means easier detection of those attempting to lodge bogus warranty claims for negligent damage.
that would be a sad day, i'm so glad apple gave me a warranty replacement for laundered airpods
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#297Earlier quoted context omitted.
Really nitpicky, but not really a GFCI. The USB connector is detecting a short circuit--a direct connection between the two pins--and cutting power while the condition is present. If you wanted to put this in terms of household electrical, this would be closest to a self-resetting breaker. (And actually, most devices you have already _have_ this. There's usually a self-resetting fuse/PTC thermistor protecting your US…
Even more nitpicky: that's totally a GFCI. You "detect a short circuit", by definition, by detecting current flowing between pins that shouldn't carry current. GFCI is the same thing, just for the special case of three-wire power delivery where all it needs to do is test one ground line.
Gelman amnesia and all that…
Even more nitpicky: it’s not a GFCI because GFCI does not detect current leakage between pins that shouldn’t carry current. It measures current imbalance between pins that should be carrying current.
The distinction is that a real GFCI (which this USB port is not) does not care whether the imbalance is returning through a third conductor on the power cord or some other path.
If this were a real GFCI, it would be able to detect when current flows out through the case, to your hand, though your body and then back though the puddle of watch you’re standing in.
That’s not what this is doing. It is measuring unexpected current between the pins within the port for the purpose of avoiding galvanic corrosion (the hint is in the daemon name reported by macrumors).
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#298Earlier quoted context omitted.
FWIW, liquid (pin-shortage) detection on the USB-port is a standard feature of all Smartphones with IPxx water-ingress certification. It prevents the device from applying/draining power from any pin in such a state, mainly to reduce corrosion of the contacts and increase longevity. (Without such a mechanism, an IPxx device may be unable to charge within a few weeks as the contacts of the connector can deteriorate qui…
On iOS you can thankfully override it (the alert dialog lets you do it) in case of an emergency - which is pretty handy if you’ve had the phone in the pool/shower and really need to charge it and don’t have a blow dryer to hand. Less frequent of an issue for laptops I would hope :D
Now that override is something I would log as a vendor, because THAT's when the corrosion happens on the connector...
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#299IMO it's dirty pool for Apple to advertise their products as waterproof (IP68) and then even if a drop of water gets on the external case, they will refuse to honor the warranty, even if the water has nothing to do with the problem.
They don't even want to perform out of warranty, paid repairs if any of the liquid sensors are tripped. A few years back I had an MBP that the battery had worn out on, but several years before, I had spilled some water on the keyboard. The computer was none the worse for wear -- I dried it out quickly and it was fine, but when the battery wore out and I wanted it replaced, they wanted me to pay $1500 for a new motherboard before they would be willing to replace the battery.
Re: Macs can now inform Apple if any liquids have been detected in the USB-C ports
#300Earlier quoted context omitted.
Somewhere, a YouTube content creator scribbles Macbook Pro in concentrated sulphuric acid . (And I'd probably watch it).
NileRed for HN, paging NileRed for a video about non conductive liquids in USBC PD
NileRed: I turned this MacBook Pro into Cotton Candy!