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Cake day: 2025年3月12日

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  • Even USB-C is a nightmare. There’s 3.0, 3.1, and 3.2, which were rebranded as “3.2 Gen X” with some stupid stuff there as far as what speed it supports.

    Then it can do DisplayPort as well. There used to be an HDMI alt mode too!

    An Intel computer might have Thunderbolt over the same cable, and can send PCIe signals over the cable to plug in a graphics card or other devices.

    Then there’s USB 4 which works like Thunderbolt but isn’t restricted to Intel devices.

    Then there’s the extended power profile which lets you push 240 W through a USB C port.

    For a while, the USB-C connector was on graphics cards as Virtualink, which was supposed to be a one-cable standardized solution to plugging in VR headsets. Except that no headsets used it.

    Then there’s Nintendo. The Switch has a Type-C port, but does its own stupid thing for video, so it can’t work with a normal dock because it’s a freak.

    So you pick up a random USB C cable and have no information on what it may be capable of, plug it into a port where you again don’t know the capabilities. Its speed may be anywhere between 1.5 MBit/s (USB 1.0 low speed) and 80 GBit/s (USB 4 2.0) and it may provide between 5 and 240 W of power.

    Every charger has a different power output, and sometimes it leads to a stupid situation like the Dell 130 W laptop charger. In theory, 130 W is way more than what most phones will charge at. But it only offers that at I think 20 V, which my phone can’t take. So in practice, your phone will charge at the base 5W over it.

    Dell also has a laptop dock for one of their laptops that uses TWO Type-C ports, for more gooderness or something, I don’t know. Meaning it will only fit that laptop with ports exactly that far apart.

    The USB chaos does lead to fun discoveries, such as when I plugged a Chromecast with Google TV’s power port into a laptop dock and discovered that it actually supports USB inputs, which is cool.

    And Logitech still can’t make a USB-C dongle for their mouse.

    At least it’s not a bunch of proprietary barrel chargers. My parents have a whole box of orphaned chargers with oddly specific voltages from random devices.



  • GreenCrunch@lemmy.todayto196@lemmy.blahaj.zoneSSD to USB rule
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    10 小时前

    The deafening “USB device connected” sound from the house bothered my neighbors.

    Then I learned my house had mouse aiming when I tripped over the mouse, ripping it from its foundation and spinning it wildly.

    Unfortunately, the house did not save prior to its excursion. The insurance company is really mad.



  • I find that 15% number interesting… For example, there’s a highway near where I am with a 55 mph speed limit. But you’ll rarely find people doing less than 60. Usually 65, with the occasional crazy person doing 80.

    But I feel like raising the speed limit would defeat the purpose. Drivers would be happy, but then they’d just go 75. If traffic engineering amounts to “More than 15% are breaking the rules and driving in an unsafe manner, let’s change the rules so that’s legal,” it seems pretty dumb. Like, that extra speed isn’t suddenly safer because the sign says something else.




  • GreenCrunch@lemmy.todayto196@lemmy.blahaj.zoneNice Rule.
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    3 天前

    Well, they have a security advantage. I know Google moved over to requiring a USB MFA key for their employees a few years ago, and saw a reduction in successful phishing attacks.

    I would imagine one of these fobs is cheaper than a USB key. It also can work without being plugged into a computer, which is good.

    Authenticator apps are nice and all, but are not going to provide as much security as one of these. Apps live on people’s phones, and especially if it’s a personal phone, you may not want to trust its security. If it’s stolen or hacked, your multi-factor authentication just got less secure.

    If you don’t want personal devices in a building as well, these are useful.

    Lots of reasons these are still totally good today!





  • GreenCrunch@lemmy.todayto196@lemmy.blahaj.zoneRule
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    9 天前

    Grab the door handle too hard and it’s totaled. I’d say my car has maybe 250 health points. That’s even counting the rust and the broken plastic clips!

    It’s survived being sideswiped - 150 damage, healed by using aftermarket panels and spray paint. Permanent -5 beauty debuff though.

    It does have a curse (weakness to head gasket failure) though. But that hasn’t killed it yet!



  • I know someone with obsessive compulsive disorder, and I could see a chatbot being harmful there, depending on how it goes. A lot of compulsions are around checking or asking for reassurance. A chatbot would provide endless reassurance where a human might eventually get annoyed and cut you off. It would allow you to ruminate endlessly.

    The problem is that engaging in compulsions keeps you in a cycle - it’s never enough reassurance. The gold standard treatment is exposure response prevention (ERP), where you intentionally expose yourself to triggers and resist doing the compulsions. (Info from Free Yourself from OCD by Jonah Lakin, PsyD)