Previous discussion: https://news.ycombinator.com/item?id=28733467
Also why is that submission now marked as a dupe? It doesn't even point to the one that it is supposed to be a dupe of.
Try charging on the right and not on the left
61–70 of 80 posts
Re: Try charging on the right and not on the left
#62I run a displayport hub connected to a M1 MacBook pro and i noticed it crashes sometimes when in the back port. So i have to keep it in the front port.
Re: Try charging on the right and not on the left
#63Apple hardware quality and the design decisions have gone to shit since jobs died. The folks thet were feed up with the hype of his return to a diying company (and with a good reason, since the company really improved) are the ones keeping the company alive... In my opinion unless something changes it wont take long for it to be the dying company they use to be... They have a grat "body" but they lack the "heart" (an…
Yeah, Apple hardware may be worse than it used to be. But as far as I can tell, it's still at the top. Can you point out a company that consistently makes better hardware than Apple does?
Literally any random gaming laptop on Amazon probably won't have any of these problems, while also having ethernet ports etc.
Re: Try charging on the right and not on the left
#64Earlier quoted context omitted.
I have the 2019 MBP 16" with i9 inside and it's terrible for any task heavier than browsing the internet or watching cat videos. Running CMake + gcc on a bigger project? The fans start running like crazy. The performance of the i9 is awesome, at least for the first 1-2 minutes, after that the CPU is throttling you back to the 90's and the fans are spinning even louder. But this is not even the funniest issue with it.…
Pulling 100W on a laptop is pretty impressive though, that’s insane. Can you attach two chargers?
You can, but it will only use one, switching to the highest wattage automatically.
Re: Try charging on the right and not on the left
#65Earlier quoted context omitted.
> One of the functions of kernel_task is to help manage CPU temperature by making the CPU less available to processes that are using it intensely. In other words, kernel_task responds to conditions that cause your CPU to become too hot If it's about CPU temperature, why does Apple schedule a task instead of just downclocking the CPU, like everyone else? This question predates the release of M1 Macbooks, and everyone…
I'm not an expert, but I know are two forms of throttling under MacOS – the CPU frequency limit, and the "scheduling limit". The CPU reduces frequency under thermal stress just like other machines, but there's a minimum frequency that it can be downclocked to. So if that's not enough to meet the thermal envelope, the scheduler will additionally start to limit the amount of CPU time that can be used. I notice this in…
I've had my Mac mini throttle down to 180Mhz under Linux (due to incorrect ACPI settings), to the point where I could see the window elements being drawn :) So at least that generation Intel was capable of pretty extreme downclocking.
Re: Try charging on the right and not on the left
#66Earlier quoted context omitted.
Attach the same monitor to both an M1 and an Intel Laptop, you can fry chicken on the latter.
Can you? My i5-10300H equipped laptop drives two external monitors daily and the fans don't even start in normal use. Maybe specify which laptop? The M1 can't even support two monitors plugged in directly, which is a joke for a machine this expensive.
My M1 Mac mini supports two monitors plugged in directly. I know you mentioned “laptop”.
OT: It’s nice that DisplayLink connections let an M1 machine have unlimited displays, and that the performance of their driver under Big Sur and above has been fantastic for me for the past half year for 2 extra displays. (Four total, 1 is vertical)
Re: Try charging on the right and not on the left
#67Re: Try charging on the right and not on the left
#68This is the reason I have a couple of monitors lying uselessly on my table. Everytime I connect an external monitor, it makes the GPU go crazy and overheats the Macbook enough to summon this kernel_task demon. Couldn't comprehend why one of the best laptops on the planet cannot handle one external monitor.
When you attach an external monitor, that switches from using the Intel integrated GPU to the AMD discrete GPU which uses a lot more power.
Re: Try charging on the right and not on the left
#69Earlier quoted context omitted.
The comment by jksoegaard may explain it: "the purpose of the thread is to force idleness". I guess it uses up all the CPU without actually making the CPU do anything, so other processes can't use the CPU and produce more heat than it can handle.
Wow! This brings back memories. I don't remember which generation of CPUs this was.. maybe Pentium III or AthlonXP. But there was an issue in Windows where the chip would overheat when idle. There was an app called Rain that you could download and it would just keep the idle process from running away and causing heat. I may need to research this on my lunch break and report back. EDIT: Here's a related thread: https:…
That wasn't exactly an issue, more like a feature that didn't exist yet.
The Pentium IIIs were the first CPUs that could consume enough power to cause heat problems if not throttled. OSes didn't yet anticipate that; they didn't yet have the concept of issuing halt instructions when there was no application work to do, they just let the CPU spin faster on a waiting-for-message loop. The OS makers soon recognized the need, and halting the CPU became built in to the OS by the time of either Windows 98 or 2000, so yeah, in the interim, tools like Rain were what you used.
Re: Try charging on the right and not on the left
#70I noticed my 2019 MacBook Pro physically hot to touch even after being idle for 8 hours at night. Now I unplug my USB-C monitor and USB-C-to-USB-A adapter at the end of the day and that has solved the problem. Now when I come to the machine in the morning, it is nice and cool, and I plug-in my peripherals again. It seems Apple has noticed this sub-par pro performance and moved back to the MagSafe charger in the lates…
Was there an Apple Store response for the overheating / overnight-charging problem?
I didn't ask them about the heat issue since I attributed the issue to my cheap non-Apple adapters. Issues they've fixed for me for free: broken back-plate on the old 2010 white unibody macbook, as well as a stuck key on keyboard of 2018 Macbook Pro.