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#2

Post by Aeolun »

Oh yes! My brand new macbook pro had been sitting at 300% kernel process usage ever since I bought it.

I thought it was just ridiculously badly optimized.

Why doesn’t the system inform you when it’s spinning it’s wheels with no work just to cool down it’s chassis?

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#3

Post by sprite »

My 2019 16-inch MacBook Pro (2.3ghz i9/64gb ram) becomes unusable with 2 of the LG 5k monitors plugged in (one on each side). Worst MacBook I have ever owned.

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#5

Post by w0mbat »

I can confirm. I reproduced this problem and the stated fix on the work MBP at my previous job a few months ago.

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#6

Post by j45 »

Also applicable to 2018 MacBooks.

Apple laptops are not able to cool themselves if used to any medium or higher capacity.

A laptop cooler or cabinet fans underneath to draw air away are a must if you want anywhere close to the cpu power you are purchasing.

An external keyboard is also a must to own a MacBook 2015-201i+ if it’s from the special years of dust existing on Earth,

Re: undefined

#7

Post by colordrops »

I tried this and it doesn't work. Turns out my MacBook was throttling to 30% due to overheating. This happens more frequently if you drive the GPU with an external monitor. Unfortunately the OS does nothing to notify you of overheating and throttling, which is an insanely stupid oversight by apple. I only found out because I noticed that the computer ran fine while running the AC, so I installed an app through Brew called "Hot" which tells you temperature and throttling percentage, and confirmed that this was indeed problem.

This happens when the room is over 80 degrees Fahrenheit, even when the CPU is at 3% utilization. Can't find root cause, or if this is even considered abnormal, but the laptop is defective in my opinion.

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#8

Post by skavi »

j45 wrote: post #6

Also applicable to 2018 MacBooks. Apple laptops are not able to cool themselves if used to any medium or higher capacity. A laptop cooler or cabinet fans underneath to draw air away are a must if you want anywhere close to the cpu power you are purchasing. An external keyboard is also a must to own a MacBook 2015-201i+ if it’s from the special years of dust existing on Earth,

the 13" ones cool themselves fine. They can usually keep the CPU at higher power for longer than other ultrabooks. The 15" models definitely have worse thermals than the competition though.

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#9

Post by JohnKacz »

colordrops wrote: post #7

I tried this and it doesn't work. Turns out my MacBook was throttling to 30% due to overheating. This happens more frequently if you drive the GPU with an external monitor. Unfortunately the OS does nothing to notify you of overheating and throttling, which is an insanely stupid oversight by apple. I only found out because I noticed that the computer ran fine while running the AC, so I installed an app through Brew c…

https://github.com/macmade/Hot
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