I also love my Intel one. Can run all the VMs I want, Linux and Windows and call me crazy but..... I like the touchbar 
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(2019) 16" is HOT & NOISY with an external monitor! :(
- Thread starter Appledoesnotlisten
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Guys, i sold my 16 MBP almost a year ago for an 13" M1 MBA and randomly stepped in this old thread i used to read regularly. Im happy, that theres finally a solution and a bit sad that i sold the MBP 16"
SOLVED: Well. Sort of. I plugged my monitor in HDMI instead of thunderbolt (2013 15" MBP) and 90% of the fan and lagging issues stopped. Sucks, but I don't need crazy resolution so it's okay I guess.
I did a similar thing but sold for the 2021 MBP. I only miss boot camp, but otherwise my MBP is amazing. Glad to see it took Apple 2 years to solve the issue!Guys, i sold my 16 MBP almost a year ago for an 13" M1 MBA and randomly stepped in this old thread i used to read regularly. Im happy, that theres finally a solution and a bit sad that i sold the MBP 16"
yup - confirmed fixed in 12.3 for my i7/5300. 5 watts or so, running cool, with own screen and Dell UP 3216Q 4K monitor running. Was 18 or more watts in earlier releases. Love the machine again.
12.3.1 and LPM on. Also tried with LPM off. Now everyone solved the problem except me: I'm devastated . BTW, kernel_task at 700% when I took the screenshot.
. BTW, kernel_task at 700% when I took the screenshot.For mine, the wattage was lowered only when monitors were HDMI (4K/60) (I connected mine through usb-c dock). When I tried it with a Cinema 30” (via usb-c to and then dual-link dvi adapter) it stayed at 17-19W12.3.1 and LPM on. Also tried with LPM off. Now everyone solved the problem except me: I'm devastated
View attachment 2004745
Havw you tried a different monitor? same result?12.3.1 and LPM on. Also tried with LPM off. Now everyone solved the problem except me: I'm devastated
View attachment 2004745
I had the same problem: 12.3.1 and very high kernel_task CPU and noisy fans, with or without LPM. I brought the MacBook to an Apple center to clean the fans and remove the internal dust, and now it works like a charm with LPM off!12.3.1 and LPM on. Also tried with LPM off. Now everyone solved the problem except me: I'm devastated
That's the problem: it seems to work okay with other monitors (it was a Samsung), at least fan-wise and kernel_task-wise —I didn't check power withdrawal from GPU. Trying this morning with another one to confirm and editing this message.
I have an LG 29UM69G-B, it's WFHD (2560x1080), 75Hz (but capped at 60Hz). Connected it via DisplayPort to USB-c and HDMI to USB-c. LPM on and off. Still the same.
Yeah, that's what I thought a couple of weeks ago, and I brought my Mac to Apple. When they gave it back after some tests I specifically asked about internal cleaning and they said that yes, they did it. Still the same.
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Yes, confirmed, Samsung screen seems to work nicely:
Looking forward to talk with LG and hoping they offer me a solution. I think it's my last option, it seems like Apple has nothing to do with my problem.
Mine still ok after 12.4. I still need to check all the time if i'm on Variable Fresh Rate though. VFR will draw 18w+. Fix to 60 Hz will draw 6 to 10w.
A bit annoying but already much better than before.
Can you try plugging in the power cable on the right side and the display cable on the left side? I noticed a reduction in temperatures if I do that.
I had been holding off on Monterey but after seeing that they seemed to have fixed the issue in 12.3 I finally updated (to 12.4). Unfortunately I still get 19-20W GPU when plugged in my CalDigit TS3 dock > DisplayPort monitor. If I lower the external monitor resolution to 1080p or run in clamshell mode the GPU power consumption goes way down.
I've tried toggling LPM, restarting, etc. Anything else to try?
Radeon 5500M 8GB, monitor is Scepter Q32 2560x1440
I've tried toggling LPM, restarting, etc. Anything else to try?
Radeon 5500M 8GB, monitor is Scepter Q32 2560x1440
Ok a little more info and possible workaround:
The refresh rate options for my external monitor were 59.5, 75, and 85Hz. No setting had an effect on the 19W GPU draw. I installed SwitchResX and created a custom resolution forcing 60Hz exactly; when I switch to that power consumption goes down! To like 7-9W with LPM off.
I also tried every combination of enabling "Overdrive" and "Adaptive Sync" options on my monitor; no change, though the latter did give me a Variable Refresh Rate option that didn't help.
So do I need to buy SwitchResX or is there another way to force 60Hz refresh rate?
The refresh rate options for my external monitor were 59.5, 75, and 85Hz. No setting had an effect on the 19W GPU draw. I installed SwitchResX and created a custom resolution forcing 60Hz exactly; when I switch to that power consumption goes down! To like 7-9W with LPM off.
I also tried every combination of enabling "Overdrive" and "Adaptive Sync" options on my monitor; no change, though the latter did give me a Variable Refresh Rate option that didn't help.
So do I need to buy SwitchResX or is there another way to force 60Hz refresh rate?
