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Chevy/Cadillac tail lights? Hate them. Looks like 60Hz, no idea why such a low frequency in a car.

I'm a little baffled that GM continues to do this even on later models. I can pick them out a long way away, at night especially. It makes their cars look cheap and possibly dangerous.

It's odd that I/we notice it more on their high-end nameplate (Cadillac), where they theoretically have more money to address these sorts of issues.


To be fair, they're grabbing your attention, which is part of the reason they exist.

It grabs my attention in a way that reminds me never to buy that type of car.

I haven't taken notice of the brand, but I certainly have also noticed a few cars with horrible PWM. It really does look bad I think.

I miss how amusement parks looked at night when I was a kid, all bathed in warm, colorful glowing lights. They are still bathed in warm colorful lights, but half of them now have shitty PWM.


Why should battery-powered diodes flicker anyway?

It's usually the cheapest way to dim LEDs.

Usually tail lights are made up of a matrix of LEDs. They could dim them by only energizing a checkerboard pattern of half of the matrix (using flat DC, not PWM), then energizing the whole matrix when the brakes are applied. If the PWM duty cycle is less than 50% for some reason, then they could energize that portion of the matrix instead.

Or they could raise their damn PWM frequency.


They could also use a linear regulator to limit current with no PWM at all, and that would still be pretty cheap. It's probably not as cheap though.

Apparent brightness controlled by duty cycle.

But posting the mitigation helps guide attackers on how to exploit the vulnerability, and do so sooner.


After how long? I.e. did you get a few good years with it?


Not OP, but it launched in June 2022, so less life than I'd like to see from a Thinkpad regardless of how you slice it.


It's at most 4 years old. For that high end of a laptop I have pretty high expectations, I think it was over $4k retail.


Or add a "probability of injury or death" attribute for more granularity.


Walkability based on time of day?


Start a few dozen agents, and take a long lunch, right? No?


Play the lottery! I got -1350 spamming 2, -400 spamming 1. Feeling unlucky.


Assuming they don't swap it out every night/week.

Speaking of which, when will it be in the stores to play with?


Likely on launch day next month (October 23). Apple doesn't do display units until the day of the launch.


True, I remember years ago, the presenter was doing a demo and ran into a problem. He quickly transitioned to another identical device nearby, and continued almost seamlessly. Didn't seem like much of an issue. Although that might have been WWDC, which is a different crowd.


You can also readily find occasional videos of Steve Jobs throwing malfunctioning devices across the stage.


Interesting, do you remember which WWDC was that?


I’ve seen that happen a couple of times. I know there was an infamous Microsoft one, where the demo BSOD’d on Bill Gates (Not WWDC. I wasn’t there, but I’m sure there’s video). Microsoft used to demo real unstable stuff.

I remember one WWDC, where Ian Diery was giving a demo with a young man, and asked “Where’s the beef?” The kid looked down at his pants, and the crowd burst into laughter.

Diery did not laugh. He was a fairly serious chap, with no discernible sense of humor, so I expect his assistant was sanctioned for that.

I think the last DuDub I went to, was around 2005 (pre-iPhone). I know it was at Moscone. Jobs led that. He was one of the best presenters I’ve ever seen. He could recover from curveballs almost imperceptibly.

The first, was in 1987, or 1988. One of the first.


Story from 2017, but the iPhone event: https://www.engadget.com/2017-09-14-apple-explains-face-id-f...

> Face ID ... didn't quite work as he expected. "Your passcode is required to enable Face ID" popped up, eliciting a nervous chuckle out of Craig and forcing him to switch to the spare demo phone


CarPlay Ultra adds information such as speed, fuel/charge level, climate control, and tire pressure. Hard to imagine legal issues around that.

Although I could imagine the car manufacturers wanting to get revenue from refueling ads.


Microsoft Edge does this too, iirc, for "Startup Boost".


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