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Cake day: October 5th, 2023

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  • The USB type C connector itself is amazing. I’ve never broken the physical connector, the problem is electrical only. The connector is capable of delivering a very high 240W of power, but the device/charger negotiate the power and voltage requirements to find the highest both can support.

    But there are actually four parts of the system limiting the negotiated power:

    • The maximum power the charger can deliver
    • The maximum power the charging device can receive
    • The maximum current the cable can deliver
    • The signaling protocol used to negotiate the highest supported power across the link

    The problem ultimately comes from the negotiation as many devices don’t use USB-PD (the theoretical “standard” for this) to save cost or allow different electrical configurations. This can lead to chargers incorrectly identifying devices as capable of accepting higher voltages than they can. Or devices can incorrectly identify themselves as capable of accepting higher voltage than they actually can.

    If you’re using reputable decides from reputable companies using the included charger/cables, this will never be an issue. It’s only problematic when you want one charger for all your USB type C devices, as it now needs to support multiple communication protocols and voltage standards, hoping that no device identifies itself incorrectly.















  • Starting yesterday unfortunately Chrome and not Firefox. I just need a working web browser and haven’t had the time to figure out what is wrong with my Firefox installation. I have no clue why but after updating to firefox 135 it eats up all my RAM (20GB+) and uses a significant amount of CPU while idle with only the process monitor tab open. Attempting to browse is unreasonably slow. Refreshing Firefox did nothing, despite now having a Firefox installation which isn’t logged into anything and has no extensions. So I figured that if I’m going to deal with a browser not logged into anything it might as well be Chrome for a bit until I can figure out what the problem is since that’s what all of the internet is designed to work with lately.