I use lemurs because as far as I can tell there's no good graphical display managers (lightdm may be the closest as SDDM doesn't show battery level and GDM doesn't allow changing the mouse cursor theme).
AFAIK most cars with electric parking breaks need to be set into a special maintenance mode either via OBD-2 or a special in-car procedure to be able to change the pads. Otherwise the breaks Pistons just push together and leave no room for the new pads. At least that is what my 2015 VW would do. But every shop around here has that Software or knowledge.
So Hyundai just upped the game and put some subscription into their service software. Definitely not a consumer friendly move, as changing pads and even disks is not that hard.
The cars are literally equipped with a computer and a touchscreen these days, there is no justification to mandate an external computer or diagnostic tool to be able to do basic service such as a change of brake pads.
Someone engaging this mode by error or stupidity, and then causing an accident makes me think some things should remain lock behind some "I know what I am doing" barrier, which the subject of the original link seem to not have scaled above, as there is a simple way to brute force the electronic break, no expensive tools needed.
It seems like this may be a good opportunity for someone interested in cars to make a site that evaluates especially EV vehicles for their various tricks and traps like this OP story to hold manufacturers’ feet to the fire, so things like subscription or unlock charges and DLC nonsense is not spread and normalized. I don’t want to give them any ideas, but I would prefer if we avoided things like having to buy blinker credits do you don’t end up pulled over off found at fault in an accident because you ran out of credits to use your blinker.
I for one would love to know if a manufacturer requires expensive hidden costs for services that amount to vendor lock-in. It seems like yet another industry moving into the scammy business model like airlines and hotels, where the prices they show you are never they price you pay.
I'm running a 6900XT on Arch and have no problems so far. Steam, Heroic launcher and every game i tried so far worked like a charm. You can even OC with LACT [1] if you want to.
So far, I have tried Qt directly with C++ and python bindings (pySide6, pyQt), where C++ is definitely the lighter option.
If you consider python bindings, you could also look into JavaFX. It has the advantage of native images or the option of a fat jar containing all platform dependant FX modules. But the resulting files won't be small.
A new semi-passive 850-watt fully modular PSU is around EUR 130, the Noctua fan around EUR 30.
I guess if you know electronics and how to safely handle the PSU internals, the risk of injury is low, but I personally would not risk it for EUR 100.
Also, if the only problem was the noisy fan, I guess selling it used would have returned most of the investment, leaving him with like EUR 50 in added cost. Compared to the price of a modern gaming PC, that's nothing (also avoiding not risking your life).
I have a 12U 19 inch rack built into my computer desk, and I have a couple of NASes in it (2x HPC-8316SA-55RB1). The 40mm fans in the included CRPS PSUs are loud, whiny, and rattly, all at the same time.
I replaced all 4 of them with Noctua NF-A4x20s, wired to run at full speed all the time. They still report their speed so the IPMI management interface doesn't consider the power supply fan to have failed, but the PSU can no longer control the fan's speed.
The PSUs don't run any hotter and I can't hear them now.
I have a used Eaton PW9130 UPS in the bottom of the rack. The 80mm (exhaust) and 60mm (inverter heatsink) fans were likewise louder than I'd like. I replaced them with Noctuas too, again wired to run at full speed all the time, and the UPS' Web/SNMP card confirms it's still no hotter than 30'C internally. I can't hear that now either.
Hilariously, the most critical fan, the original inverter heatsink fan, is a 2-pin fan, so it probably can't even detect when it has failed (unless it's detecting fan failure by monitoring current consumption). The original rear exhaust fan uses a locked rotor sensor rather than a tachometer, which required a bit of bodging to convince the UPS that it has not failed. Oh well.
I’ve also done a noctua fan replacement on my ups. My worry is that they are rated for lower airflow than the original fans they replaced. Have you checked whether it stays cool when running on battery?
It's a permanent double conversion UPS; it's always inverting. You could activate the "high efficiency" bypass mode to directly connect the input to the output in the presence of mains AC input, but this would also pass through disturbances like fluctuations, harmonics, and surges, so I don't have it enabled. This wastes about 80W in my setup but whatever. I'm not worried about the inverter temperature is the point I'm trying to make; but I was considering this when I did it, which is why they're wired to run at full speed all the time.
They just never last. Arctic fans perform really well especially for their price but they all seem to develop problems. I have probably bought about 15 different Arctic fans from the F and P range and none of them survived 5 years, most were dead or developed noise within 1-2 years. Noctua on the other hand the old 80mm fan from the early 2000s still works just fine and remains quiet. Noctua fans are crazy reliable, they cost more too but I would suspect over the life of the fan they end up similar priced or cheaper.
Arctic fans seem to last 10+ years for me. I haven't bought any recently though and I run them at 500 rpm or so, that's my strategy: many and large fans, running slowly.
while arctic make fairly good high performing fans for cheap their bearings/acoustics are kind of bad. i bought 5 of the original p12 max fans with the ball bearings. they all made a chirping noise at various rpms (even after getting 5 new ones from arctic). the new p12 pro fans perform great but around 1200 rpms the motor is very loud and annoying
really wish arctic would now focus on the acoustics of their fans because its there weakest point. i wouldnt mind spending a bit more per fan if the sound profile wasnt just straight terrible which personally theirs are to me at the moment
C grade high school physics understanding makes the risk exactly zero. Selling defective stuff without declaring is bad mojo, with declaring it just delegates the pain in the bum to someone else..
I’ve been tearing things open after ignoring the “dangerous if opened” stickers since I was 8 years old. I’m in my 30s, you’d think something would have caused me harm by now, but no.
There's a fair bit of survivorship bias in this. That said, modern power supplies use "bleeder resistors" to discharge the capacitors once powered off.
> There's a fair bit of survivorship bias in this.
Is there? This kind of statement has the potential to exhibit survivorship bias, but I feel like the opposite—"12-year-old dies replacing a power supply fan"—would make headlines. Definitely haven't seen that.
Capacitors should be respected for sure, but people don't routinely die in DIY electronics tasks.
Electrical injuries claim some 1000 lives per year in the states, and 20% of all electrical injuries are sustained by children (lethal and non-lethal). I don't think every electrocuted child makes even local headlines.
Sobering for sure, but I think vanishingly few of those are from residual energy in capacitors in unplugged appliances during disassembly, [1] and certainly far from the "this forum is missing x people just like doubled112 because of tragedies" that I imagine when you say "there's a fair bit of survivorship bias in this".
[1] a quick search mentions things like damaged cords, the classic metal object into the outlet, etc. I installed tamper-resistant outlets everywhere in my house to prevent the latter as part of child-proofing. I think they're mandatory now in new construction. I also may have gone a bit overboard trying to instill caution in my children about this this particular risk; my son tonight asked me if he was okay after his sleeve brushed against the metal part of a USB-C connector while he was plugging in his tablet.
I rather meant statements like "I did X and I didn't die" are open to survivorship bias, than asserting many must have died from this particular cause. I believe bleeder resistors are written in blood though, I vaguely remember electrocution tales from the times when people were expected to replace vacuum tubes in radios.
That's more than an order of magnitude less than fatalities from cars. In my book, that puts it into "be careful" territory but far from "don't even think about it".
As a child, I remember being up in the attic with my grandfather. He touched some wires, swore (which was unusual for him), and said 'that was 220'. I still have a healthy respect for power.
A lot of the risk is simply overstated. Yes, bad things can happen but that also goes for crossing the road yet we don't limit that to certified professionals. Just have some basic understanding of electricity, common sense, don't attempt the work while tired and you'll be fine.
I think perhaps you might have not read the entire article? =)
The danger isn't so much in the fan, but in that the fan is INSIDE OF A COMPUTER PSU. There are mains AC voltages (220V, or 110V) here, and even if unplugged (which is should be) there are also capacitors in there, which you should definitely be cautious of.
I've worked in DC (datacenters) before - and I've seen people accidentally drop screws into power supplies...and well, electrical arc, boom, you can guess the rest. And in a domestic situation, a 4" cooling fan (yes, I know, larger) stopped suddenly due to a motor issue, and send flying bits of plastic shrapnel around (always wear eye protection!).
This isn't quite like tinkering with your little Arduino board, or Raspberry Pi.
If you did read the article =(.... I think that's a bit arrogant and disingenuous to make fun of people saying you should be cautious around things that are connected to AC mains, or that involve capacitors.
I appreciate that most folks talking about power on HN are talking about computers, but I decided to not become an electrician in an earlier life.
Taking standard precautions doesn't mean you suddenly shy away from doing basic maintenance. You can use iso alcohol to clean things even if its flammable, just don't use an open flame at the same time.
I don't think it's easy to not carry a phone, nowadays. Let's say I'm meeting up with someone: I'll need to use navigation, potentially message them if I'm running late, and so on.
Then once I'm there, what do I do with the phone? Ask to put it in a separate room and hope that the microphone isn't powerful enough to pick up our conversation?
I could turn it off entirely, but what if someone needs to call me for an emergency?
For me, as a user, the easiest solution would be to have a killswitch. I understand that building it would be more work, of course :)
Yes, that's what I had to do for meetings that the organizer thought were important enough. Also, in very sensitive areas special rooms with anti-eavesdropping gear are common [1].
> I could turn it off entirely, but what if someone needs to call me for an emergency?
But you would also not be reachable if the killswitch is active ;)
Don't get me wrong, I think a killswitch can make a lot of sense for highly sensitive areas (R&D, politics, military, ...), but I don't think Fairphone 6 are the devices that target this demographic and thus should not include one. Furthermore, current "offline" measure seem to mitigate the problem okay enough to not need such a killswitch - else we would already have phones with such features. And lastly, killswitches can only mitigate parts of the features modern spyware [2] implements and does not protect from simple human-based errors like the United States government group chat leaks [3].
I've never heard this request from anyone before, so I guess that implementing such a switch wouldn't "effortlessly at least double their market potential".
What a lot of people talk about is a headphone jack. But even that niche has been filled by USB-C adapters for people that really want them and not only talk nostalgic about it.
It hasn't been filled by those adapters. Usb-C adapters suck as you have to carry them with you, they can be lost, quality is often bad and they block the one charging port of the device.
The demand for a headphone jack is fueled by functionality and sustainability concerns, not nostalgia - can't, too recent a change and current devices do have the port.
Plenty of phones with headphone jacks had terrible DACs. If you care about audio quality, external is the way to go. It’s also more sustainable as you can spend $100 once for fantastic quality and keep it forever rather than insisting that each phone have an audiophile quality DAC that will eventually be disposed of.
The one upside is convenience of not having a separate dongle, which is pretty well offset by the significant increase in phone size needed to accommodate the jack.
Given the current phone sizes compared to the phones from before, that all had the headphone jack, the idea that you would need even bigger phones as otherwise it just would not fit is ridiculous.
For the external DAC, you have to balance the "you could buy that once" against all the consumers that are pushed by the omission of the headphone jack to buy throwaway head- and earphones with glued in batteries. There is no chance in hell that the waste produced of both paths is in favour of the jackless phones.
What do you guys use/recommend?