SOLVED! MacBook Pro 16" + External Monitor = High Temperatures and Loud Fans. Here is the FIX!
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- Опубликовано: 26 июл 2024
- The internet is full of complaints about high temperatures and loud fans when the MacBook Pro 16-inch is attached to an external monitor. In this video I have tested a number of cable and monitor combinations to identify what works, and what to avoid.
These are the cables that I tested and which worked with well at a 60Hz refresh rate in "clam shell" mode:
USB-C to DisplayPort... amzn.to/3hZQYQN
Thunderbolt 3... amzn.to/2BC7plC 
Наука
Conclusions at 16:45 if you want to skip all the meta blabla
thanks 😂
thank you!!!!!!!!! you saved 16 minutes and 44 seconds of my time.
Thanks 🤣
Wow! This problem has been bothering me since 2016 model and it remains with my 2020 16inch, and you fixed it, thank you!!
what exactly fixed your problem?
As soon as you said you made a spreadsheet I subscribed to your channel 😂💪🏼👍🏻👍🏻👍🏻
Got the cable you recommended. Monitor on one side. power on the other. Fans decreased dramatically. From maxed out around 6k to 4500 on Macfans. So not perfect, but way better! Thank you for solving a 5 years problem. Appreciate you.
Thanks. Great infos!
This is wild! I swapped my power cable to the opposite side of where im connecting my monitor and my system CPU% went from 60-70% to under 2%!! (2019 MacBook Pro on Big Sur) Thank you!
His conclusions: 16:52
And BTW all those likely won't work. Both of my monitors are @60Hz, connected with DP, I'm still having the issue.
Fuck, Whats the solution then? I don;t have other options for my work laptop.
same configuration, but works fine with my dual 1080p display
I had the same configuration and the same issue. I spent a lot of cash on different configurations My current config is 2 LG ultrafine displays, which will draw 18W-20W idling at 60Hz, but at 30Hz refresh rate the dGPU draws about 4-6W. I’ve only had it this way for a few days, before that I had an eGPU,
anyway, it’s ok when idling or light use, but it heats up when streaming a game from a PC via steam remote play, and the power draw shot up while running a Windows VM,
From what I’ve read, and I’ve read a lot and spent hours with Apple Tech support! , it seems to be an issue with the 5300M and 5500M dGPU chips on 2019 MBP 16” laptops.
great recommendations. I have an LG 27 MN monitor and just closing the Mac Pro itself, I brought the fan speed dramatically down to min from 3200.
Thanks. Answered a lot of my concerns.
Really great test and feedback. Thanks for that!
Keep up the great work mate! Very good content, liked the details :) cheers
Thanks. I am glad that you found it useful.
Thanks for the this detailed review
Thanks for this video. I was looking for this solution from last 2 years.
Thanks! Just purchased a new 2019 MacBook Pro and a UHD monitor and going through same fan / temp issues. The fan noise is so loud my mic picks up during my recording. So frustrating! I am going to see if the display port would make a difference or may be it’s my monitor!
how did you find it! i was the same using apollo twin and ableton was like a jet engine!
Did it work?
Did you manage?
I use display port, no use, very high fan noise (MacBook pro 2020 16`` 32GB ram)
I've been using the same MacBook Pro in a vertical clamshell mode with the apple logo straight up. That means the heat goes down where the hinge is located, and there is not much space between the clamshell stand and the desk. This causes some strange issues with RUclips videos and other problems. But when the MacBook Pro is in an upside-down clamshell mode, which means the hinge part goes up and also the heat goes up as well. I have no problem with the latter clamshell mode.
Great video, great investigation! Subscribed.
I don't usually post comments (I wanted to say that to add weight to my comment) but thank you for this video, I will try your suggestion on the Display Port cable. But what I really appreciate most is your candor and transparent comment subscribing and liking. Rare to see that kind of sincerity.
I have the same problem with a 2012 macbook pro. It's because with a monitor plugged in, it will automatically try and refresh both the built-in and external displays, even if the monitor's screen is sleeping. To avoid detection of the monitor without having to remove the hdmi cable, you can turn off the monitor's power supply on a switched power strip. And when using the monitor as a mirror, an alternative to the clamshell mode that keeps access to the keyboard and has better cooling, is to dim down the laptop's display entirely.
Amazing, detailed video! Thank you very much for your input on the issue :)
I am glad you found the video helpful! Thanks for the feedback.
Same issue. Find solution! Dropping resolution from 2k( 2500 rpms, temp of cpu and gpu about 65) to Full HD( 1850 rpms, temp of cpu and gpu about 48).
Well, unfortunately i tried all possible cables(type-c, DisplayPort, hdmi). Thanks for video. If you have an update about MacBook16+external monitor, please let me know!
thank you! very helpful!
Great Video! I had to move away from an HDMI dongle to a Displayport to USB-C Single cable when I'm not using my eGPU to keep the fans from randomly ramping up.
Yes, absolutely right, me too. That does the job.
How did you not use egpu?
@@rayhall5610 usb-c to Displayport if I am using the internal video card on my macbook.
@@joesalyers Thanks!
@@rayhall5610 You're welcome, you can find them on Amazon for around $10 to $15 dollars.
Thanks so much for the time you've put into this whether it works for me or not. mine is coming back from being repaired and was going to sell it to get an m1 but going to try the display port method first! (currently use the green hdmi option!) Mac arrives wednesday so will let you know. I'm plugging it into a 240hz 1080p 24" gaming monitor so will have to see if that resolution is enough or if it has to be 60fps or over AND a bit more taxing resolution to occupy GPU! Subbed! :)
What were your results? :)
@@AlexMoophty I bought an m1 air!
Thanks mate! This helped alot!
Many thanks, can you tell us the monitors used please? Thanks.
I also did the similar exercise and I realise when I plugged in the charger cable and HDMI in the same dongle, the temps raised by 15 degree and fans were running louder. So I always plugin charger in the directly in the laptop and monitor dongle other side of the laptop. This keep the temps running low ...
Thanks for your video, but to summarize a long video in one sentence: Closing the notebook while using an external monitor is the only thing, that helps to get a quit workplace. And this is for me not really acceptable. I am buying and using a high end notebook and have to fight against such stupid problems. :-( It's November 2021 now and I still found no solution for the problem.
I have zero interest for two displays, but I keep mine open because of: 1) The fingerprint sensor 2) Mic doesn't work too well when the lid is closed. I suppose I'd manage without the fingerprint sensor and use a headset in meetings.
@@kke I finally solved the problem. The fan of the Macbook Pro 2019 drove me crazy. I work daily with my 4k display and use Microsoft Teams for hours a day. I often had 5400 rpm and more all day long. I've tried so many. Of course, an app for regulating the fans has the disadvantage that the processor gets too hot and thus reduces the speed. In the end, the system hangs constantly. When my working day was over and I still want to cut my holiday films in Final Cut Pro in the evening or want to edit pictures in the photo app, the fan was still loud. At some point I had gone through the entire range of options: different display cables, different adapters, docking stations, etc. Then I briefly decided to buy a "worse" screen so that I didn't have the 4K problem. But then the problems with Microsoft Teams continued. I ended up selling the device and getting an M1 Pro. Since then absolute peace at home. An expensive but finally effective solution.
@@RomanWagner Thanks for taking the time to post this. Very much appreciated.
My 16 inch always gets crazy hot even undocked. I adjusted Turbo Boost parameters and that has made the biggest difference for me.
Having that issue using CaliDigital t3s dock and 2 27’ thunderbolt displays and my laptop goes into thermal protection black screen etc and press any button to reboot ... help
I have an LG 34 inch ultra wide and MacBook Pro 16 inch that I use in clamshell mode. I was getting horrible fan noise while doing everyday tasks that shouldn't have caused the fans to spin on my Mac. The thing that fixed it for me was my adapter. The old one I used supported a max refresh rate of 50Hz through HDMI. Once I bought a new one that supported 60Hz and changed my display settings to use 60Hz, the noise stopped. The adapter also allows me to plug in my power cable, so there is only 1 USB C port being used on my Mac. Hope this helps.
I have this exact problem. What is the adapter? power adapter for the mac?
@@charlieinman i thnik the dongle
why would you say this and not even drop the adaptor used 😭😭
Thank you. My monitor doesn't support Display Port, but I swapped my dongle from the right to the left and RPM dropped from 5,400 to 3,400. Win. No monitor=1,800.
how was your temps after you got it fixed?
Hi my macbook 13 inch gets extremely hot and loud when I plug my usb mic and record
Does using an audio interface helps with that ?
Thanks this was great
Brilliant. One question, i am using macbook pro 2016 and having the same issue. do you think that in the squared dongle for HDMI cable, we can use the charging cable to connect in the c-port of the same dongle where HDMI cable is connected (and the dongle is then connected to a single c-port of macbook), can solve this problem?
It work !!! Thank you
Thank you!
Hello! I have MBP 2019 with Vega 20, and two external monitors LG 27UK850W. Both of them are connected using USB-C to USB-C cable provided with the monitor. Fans are around 5k all the time. Any suggestions? Thank you in advance!
Thank you very much sir
In my case a display port is making it worse where the CPU just goes bonkers, i've tested it on two macbooks 16" (one from work, one my personal) and same issues on both. As compared, the HDMI way keeps things a bit more under control. It's really bizarre.
Subscribed. You’re awesome. This is a big concern for many, I hope apple does more to resolve this. Reason I’m thankful is this is an in-depth well made video to an important issue with Mac, but not necessarily a winner for clicks. Yet you still chose to address the issue and give us valuable content on it. Thx. Still though Apple should try fix this hdmi usb-c toggle problem.
I am glad that you found it useful. It would be great if they gave us users more options to tune things. There are times that I want full power, and others when it isn't necessary. I want those options.
BTW, I am not worried about clicks. I made the channel to support the community around some of my other projects. But this issue had me stressed as well. When I finally solved the problem for myself, I wanted to help others.
@@VirtualTechMeetup Unfortunately, I went and bought the direct cable you suggested USB-C to HDMI (Before I was using a toggle converter for my problems)... Well the direct cable made it much worse. Even hitting 100 degrees celsius and didn't seem to be slowing down. I had to disconnect worried the damn computer would blow up.
Unfortunately, your recommendations didn't solve anything for me. The PC blows up with insane heat, when I plug to my PC monitor, my wide screen tv and is even producing heat when I use sidecar connected with an IPAD!
This is ridiculous. And absolutely disgusting for apple after asking for so much, and promising multiple displays.
@@sandman3881 I wanted to confirm a few things. The cable that I used was USB-C to DisplayPort, not USB-C to HDMI. The reason that worked for me is that my monitor only supports 60Hz refresh rate over DisplayPort. 60Hz or greater is one of the two things that are important. The second is running in "clam shell", meaning that the MacBook Pro display is closed and you are using only the external monitor. Can you confirm that your refresh rate was 60Hz or greater, and that the MacBook Pro display was closed?
On a side note... I have never seen anything close to 100C, even while doing all of the various tests in the video. You may have other issues that need to be checked out.
Virtual Tech Meetup I thought it was hdmi to usb-c. My screen doesn’t even have display port. But I appreciate the info. Guess I need to buy a screen.. as for my giant flat screen no way I’m replacing that which is also hdmi.
The refresh rate was 60hz. The screen was not closed in clam shell. As I intend on using my labtop keyboard and trackpad, and not carry full sets of peripherals.
I appreciate your reply though. And thanks for the great work. Unfortunately none of the peripherals I currently own including my iPad is working as intended.
A simple question is what is the ideal temp running with MBP OPEN AND 1 27INCH 60HZ MONITOR And 1 21inch monitor
Great video! What's your SSD capacity by the way?
7
Hi, great video! im not really good with the accessories, can someone share some of the examples/models for the display port that i can use. Would like to purchase one, but dont know which one. (might mistakenly buy a hdmi dongle instead...). Thank you!
Using the Clamshell Mode helps a little bit, but don't expect some major changes. I'm using a USB-C to Displayport cable on a 1440p monitor@144Hz with my 2019 Macbook Pro 16". The problem is, that the Radeon spins up as soon as you plug an external monitor to your Macbook. Using Clamshell mode brought the power consumption of the Radeon from 18,4W to 17,5W.
When no monitor is connected, the Radeon graphics card is chilling at 0,5W. That is the main reason for all that heat in the MBP 16" and a serious design failure from Apple. Theres just no way around when you want to use an external monitor, you have to live with the heat and the noices...
I have read millions of threads and it's exactly how you put it : connection to an external screen => abnormal power consumption from Radeon Pro 5500M => temperature rises to alarm levels => fans spin at max => (some kernel panic processes to minimise) meanwhile the cpu is below 9%. I remember back in the day when I brought it to the office in dec 2019 and plugged it in to the office monitor, my workmates were laughing : dude, what is that noise , isn't that a new laptop? HAHA
I have the same mbp as you, going via usb-c to LG 4k ultrafine which is then connected to Dell U2717D via DisplayPort. Everytime I connect (whether clamshell or not) fans go about 5500rpm. So I _am_ following your displayport advice and still the fans are high - where am I going wrong?
I have the smaller version of the 2019 macbook pro in the cheapest variant and have the same problems. chnaging the monitor hertz from 75 to 60 improved the loud noises a little bit. its just sad that you cant watch 2 or streams for example without the loud noises. cleaning the case inside could also be an good option but only if you know to bring everything back to working.
@Virtual TechMeetup did you try hdmi to displayport or if is better usbc to displayprot , which usbc hub port you use that have usb c inport
I also tested it for a long time, clamshell helps ´. Thank you for the 60 Hz test - I'll try it out. Embarrassing for the Apple engineers.
how about Thunderbolt 3 vs USB-C to DisplayPort?
Display Port made it worse in my case, so switched back to HDMI. Close lid helps a little bit, but not by much, since I use the internal monitor off anyway. Seems to me like eGPU is the only solution I haven't tried.
thank you
I solved this problem by selecting a resolution of 2560x1440, 60 Hz (NTSC) on my 4k monitor (Asus VG289) in the SweetResX program. It was this setting that lowered the GPU energy consumption to ~8W. You also need to use a DisplayPort cable
What about if u don't even use the hdmi port on a usb-c hub? cause my satechi usb hub warms up so hot that my macbook instantly ramps up the fans to max and its getting unbelievable hot. even without having a monitor connected.
Thanks
Hope this helps:
I set the resolution to 4k/default for the display. And connect the external display using a thunderbolt-DP cable connected on the left side (farther port) and power+USB hub on the right. Avoid putting them on one side. Also, make sure there's enough space around the laptop.
The best solution ever that i've found! Doing it worked so great to me! Now i don't have any issues with that anymore. Bless you!
What an awesome review! Liked and subscribed! I know you might not have time to do topics like this all the time but it would be great help for a wider audience if you could do it! Thx sooo much!!!!
This is bizarre for me. I've been using a 4k monitor with mine for a week. It's only been doing this the past day. I changed the colour profiles, so the internal and external displays were different cause that looked best. I've tried changing it back and take the hit to colour and brightness but it's still going. My cables have both been on the left. tried them on opposites but that didn't fix it.
My fix? If a new iMac is announced tomorrow at WWDC, I'll be dumping my 16" MBP...and will never buy another "high end" MBP again. Imo, Apple still has not learned the lesson of "Function over Form".
You'll run into similar issues. Heat, for one. The last iMac I bought was the 2017 5K one. They haven't changed a thing with thermals in the last 3 years and something tells me the new design will run everything up to 100C or 105C to minimize noise. The T2 security chip is a disaster and has given people all sorts of issues like kernel panics. You won't be able to swap out the SSD when it fails, since T2 chip requires the original SSD and drives present in order to boot.
I get that some people want Apple to take care of everything when something goes wrong. They'll buy AppleCare. I won't judge, because some people would gladly trade money for less time wasted and frustration. The problem is that the T2 chip really shouldn't exist in its current implementation. It's causing stability issues. It's complicating a lot of things that should not be complicated.
@@notmyfaultthisishappening3795 While I agree in some ways regarding the T2 chip... there is no way in hell an iMac, especially an ARM based iMac which will not have a T2 chip...will run as hot and noisy as the 16" MBP when connected to an external monitor.
what if I used a thunderbolt 3 cable? will it be better?
I have a late 2013 15 retina macbook pro and noticed fans kicking up to 6500 rpm and 65+ degrees when watching a youtube video and doing a project.
Changed display settings to mirror my external monitor, changed monitor settings to powersaver but what really helped is opening the macbook pro so it's not shut since fans goes directly to screen and lowering the brightness all the way down so screen goes black. Helped a bit but well see
I'm using a mid-2015 13-inch retina macbook pro and only recently started noticing crazy fan sounds when I got a new external display - Dell U2718Q 4K monitor. I'm using thunderbolt to display port and I notice it happens mostly when running full screen videos, especially when watching Twitch.
Screen brightness is always set to 0 on MacBook, since monitor is primary display. Also mirroring both. Still trying to find a solution!
@@heyiplaybassguitar I downloaded speed fan and t hat seemed to cure all the problems of regulating temperatures and fan speeds. I also upgraded to a Razer Blade as it has better fan flow usage unlike the macbook pro..
Does it matter as a i9 processor w amd graphics card connected to a nividia graphics odessy nano 49 ultra wide monitor make this setup im trying to explain incompatable? Experiencing kernal task errors editing resulting in force quit and crash restart due to ram overload above 64 gigs with only quik time and fxpx open. All is up to date. Ever experienced this? Just got this macbook in june 6500 bucks then m1 chip up to mac studio came out in less than a yr. My trade in value is 800 bucks and havent even used it really. I have the worst timing on every upgrade i have done and am stuck another 6-10 yrs w un user friendly systems. Just venting. Thanks!
Good tech review..
I'm looking for a solution to a screen glitching issue when connecting my 16" MBP to a 1080p Monitor or TV, via an external dongle. (It's a 2015 Model 27" LG, that works fine otherwise). Apple support suggested I go into safe mode (Shift+Power) and this works fine. but the MBP does not see external USB drives (via dongle, which I suppose is good in Safe Mode). Replied to Apple support that I can't run the MPB in Safe forever. So...
I haven't experienced any screen glitches myself, so I can't provide any firsthand advice. A while back I did have issues between an Apple TV 4K and the LG 43" 4k Monitor that I mentioned in the video. Swapping out to a better cable fixed the issue. If you haven't already tried a different cable, that may be worth a shot.
I am really pissed I have a 3k laptop and cannot handle video on a external monitor (gets slow with high cpu usage).
is the problem related to the GDDR5 chip used by the 5300M and 5500M? because the 5600M with HMB2 does not have this issue
Really? You've tried it? I'm thinking of getting the HBM2 too.
@@3rd_iimpact Same here. Word is you need the 5600M. I’ll be getting Apple care tho!
@@MichaelThomasDev Oh, you’ve heard the same?
thanks a lot. A usb c to display port cable fixed the issue for me.
before I used a usb c hub with a hdmi -> 2560x1440 60 Hz -> fan runs always on full speed
now with usb c to displayport -> 2560x1440 59,88 Hz -> fans are quiet and I found peace again.
Why is this a problem? What causes it?
can you share which cable you bought? Plus how much rpm's you have now? Thanks in advance
Very good video, I had already gone through all the stages that you described well in the video. Unlike yours my MacBook Pro has 16GB of RAM (indifferent for testing purposes) but only has 4GB of VRAM instead of the 8GB in yours. What I noticed is that when the screen is open and the external monitor (BenQ PD3200 U 4K@60Hz USBC-DisplayPort cable) is connected the GPU ram (RADEON) is used up to about 80% and the computer tends to throttle, when the display is closed the VRAM usage of the RADEON drops to about 20%. I do not understand why this happens, what do you think?
Same problem... i went to the apple shop ... not able to give a solution.... only things to do for me it's increase fan frequency with a lot of laud. For keep it cool i set it fix to 4000 rpm .... and i'm just coding, no intense app going on. The only explain from apple : very powerfull machine in a limited space. Nothing more. But the fact that a 3000 euro machine is not able to control 2 monitor 1920x1080 without become a grill ... this drive me crazy!
@@gianlucatiengo7306 I partially solved by cleaning fans and fan conducts, those was full of dust. My Mac was reborn at least for now.
@@robertobissanti I've done the same... But nothing change, I can still cook eggs on my Mac 😡
How about two 4k screens? Very popular setup for devs. Can the 2019/2020 MBP handle it without noise?
Thanks for the tip, I switched from HDMI/HDMI to USB-C/DisplayPort and the fans stopped running loudly!
What brand did you purchase?
I got an AmazonBasics DisplayPort cable and the Kernel Task usage is higher than on HDMI.
@@garyj8779 same
I am aware this question is not related but I don't where to look anymore and hoping you can help: I have a MacBook Pro 16 inches and use it with a dell external monitor and the usb-c cable. I use it in clamshell mode. The sound keeps coming from the laptop even closed. What do I have to do to have it from the monitor ?
Assuming that your monitor has speakers (many do not, including many Dell models)... click on the Apple logo in the top left --> click System Preferences --> click Sound --> click the Output tab... you should see your monitor listed as a sound output device. Click to select it as the current output. If your monitor isn't listed, it probably doesn't have speakers.
I think the ideal scenario is to A) use a usb c to Displayport cable from the left side port. While charging from the right hand side port.
B) making sure that the refresh rate is set to 60 hz (or same as the external display)
C) use screen mirroring (clamshell mode)
Please correct me if i am wrong. Btw with all three above. The system idles at 40s and 50s occasionally.
Option A solved my problem.
@@chineduanene7632 my monitor only has HDMI :/ any advice? Currently using a USB hub to do USB-c to HDMI
What about dual monitor? I'm going ape doodoo here 😭
@@chineduanene7632 Option A did nothing for me. Option B is already checked. Option C is kind of a sacrifice.
Thank you very much! Very useful and interesting!
Would the same issue arise when connected to an external projector? I'm thinking of getting a 16" macbook and it would frequently be used for presentations connected to a projector. I wouldn't want to use it in clamshell mode as I'd have to keep turning around to check the slides. Help!
I am sure that it would. A projector is nothing more than a monitor in a different form-factor.
Hey man, thanks for the research on MacBook pro heating with an external monitor. I noticed you had your mac in clamshell mode the whole time.
How to minimize heat with laptop screen OPEN and connected to an external monitor?
Once you have two active monitors, including the built-in display, the GPU will draw more power and you will have loud fans. I have found no way around this.
@@VirtualTechMeetup Thank you for the explaination . Even with a single Dell 24inch screen connected via USB-C to HDMI with extended display enabled continues to cause heating and after a point the system crawls with 75% CPU usage. Clamshell mode on the other hand seems to temporarily fix but spoils the flexibilty when doing a lot of screen sharing on Zoom/ Webex calls .Hope apple fixes this soon
@@turbocharged79 I don't think apple has solution to it.
@@VirtualTechMeetup I've noticed that the surface the Macbook pro is on makes a difference. I sometimes work on a table cloth and then the computer immediately overheats and the fan kicks in. Nowadays I always put something under back side of the MacBook Pro so it gets lifted a few cm in the back. It doesn't solve the fan problem but does make my Macbook less hot, so from a longevity point of view it's the easiest solution.
Apple MacBooks have always been known to be awfully hot because Apple hasn't included enough space and fans in their (definitely not on the) laptops
.
Hi i have the same configuration mac book pro can you tell me what is the battery life you are getting as when i connect a 31.5 inch monitor i am it only last about 3~4 hours before i need to charge it again.
I never use my MacBook Pro connected to a monitor without also being plugged into power, so I cannot tell you.
i dont know if anyone would reply, but what if my monitor only has HDMI out? will a HDMI to DP converter works?
does it fix the problem if we use " USB-C to HDMI cable " ?
no
So... to have lower fan speeds when using an external monitor you close the lid. Meaning the solution for fan noise when using two screens is to use one screen................
But if I want with open lid and external monitor ? A can't avoid heat issue?
Not without an external GPU.
I did tried close my lid of Mac but I still sound loud. So I decided to take the ice packed wrap in the towel and put under of my Mac. Yes it all work very good... just for my temporary since it’s look weird. anyways I just protect my Mac 16 pro.
Fixed in latest Monterey beta using low power mode only.
2500 dollars laptop you must try 2500 combinato s maybe one work :)
You know, i’ve done all of these and saw no improvement. Even changed the thermal paste, I’m at a loss for words man.
If anyone cares: skip to 10:00 for the results. Everything before is just fluff. Appreciate the work going into videos like this though, thanks!
Hi Robert,
Thank you very much indeed first of all for such a detailed video, it really is most helpful.
Can you provide the specific LG model number for the 34" UltraWide you are using? Are you getting the best resolution the monitor can offer? Any issues waking up from sleep, etc.? Is this a monitor you would recommend for the MacBook Pro 16" or do you have any other recommendations? You clearly have researched this very well and thoroughly so I thought I would ask if you do not mind.
Thank you very much in advance, kind regards,
Santiago
It is an LG 34UC87C, and all testing was at the full 3440x1440. Interestingly I was also having the issue with the system being unable to sleep and crashing. However after switching from the dongle/dock to the USB-C to DisplayPort cable, that issue went away as well. I had read that others suspected that their dock was the root cause of the issue, which would seem to have been true for me as well.
As far as recommendations go, I must point out this is an older model. However other 3440x1440 models from LG should be as good or better. Whether any monitor is the right one for you, depends on your needs. I am usually writing code and building data analytics solutions. I don't play games. The quality of text display and lots of screen real estate is most important to me. Super high refresh rates and response speed are secondary. It may be the opposite for you. I would actually prefer something like the LG 5K UltraFine. For text display it is incredible. However I need it to be wider and curved (and ideally anti-glare rather than glossy).
@@VirtualTechMeetup Thank you very much indeed once more. After a lot of research, I have decided to go for the LG 5K UltraFine. Ideally, I would have liked more screen real estate, but in the end I was not convinced by the 5K2K resolution nor by the 34" layout of the 34WK95U-W which was the finalist. But it was a close call, my conclusion is that that 34WK95U-W should work decently with the MBP 2019 16".
As a separate note, I had bought a MBP 2019 16" with exactly the same specs as yours, very recently. I am returning it for one with the 5600M GPU, it does seem that one is behaving much better perhaps it has even solved the issues with the external monitor. But it is a disappointment to say the least the quality of this Apple flagship product. You buy this sort of computer so you do not have to make compromises and it has been the total opposite.
I researched monitors a lot lately, and also thought that perhaps the 5K2K would be a reasonable choice, but nothing seemed like a sufficient upgrade. Nagging at me in the back of my mind is that I know that I really want the text quality of the LG 5K UltraFine (I used one on a project for about 6 months after the first came out). It is surprising that there is nothing between that and the Apple 6K XDR.
If you connect two or three monitors - is there anyway to avoid high temp or is it all over then?
I haven't seen any way to keep the GPU power, and thus the temps, down with multiple monitors.
Thanks for the video. You seem to have spent some money on your desk setup. I would add a mac mini and ditch the mac book pro altogether. You could obviously use the mac book on the go and when you don’t need to be at your desk.
Keeping things in-sync between the two would be my concern. I think the best option may actually be an eGPU.
@@VirtualTechMeetup yes, that could also be a viable option.
I appreciate you did some work to put all these info together, but you haven't run macbook and external display in the same time.
So unfortunately I haven't understood any fix for this situation.
From my tests with external monitor Lenovo L27Q-10 1440p. Connection via HDMI cable using HUB that supports 60hz 4k.
1. doing nothing with external monitor and MBP display on I had 18-20 watts Radeon High Side
2. in clamshell mode same 20 watts.
3. in clamshell mode but resolution changed from 1440p to 1080p - 5-6 watts power draw.
4. 1080p + MBP display - 18-20 watts.
I made a test with USB-C - Displayport Cable and the result was the same.. 20watts
The question is.. Radeon power draw is influenced by External monitor resolution, Refresh Rate or about conectivity ?
Hey friend!
Lenovo ThinkVision P27q-20 here. Same scenario as yours.
Ended up solving like this:
forums.macrumors.com/threads/16-is-hot-noisy-with-an-external-monitor.2211747/page-75
GTF 2560x1440 60Hz and I can confirm 6-7W close lid and about 50 celsius degrees CPU
Thank you very much, So my question is that if I buy extra external Fan to put bellow my macbook pro mid 2015 is that can help to cool down and make my computer run faster with 4k Monitor? please wait your respond ?
I don't know. I have only tested the 16" MacBook Pro, and haven't tried any external fans.
@@VirtualTechMeetup thank you very much for your reply, Yes now I try to clean my mac fan and use external fan on my own macbook it works perfectly, it low down the temperature. and the fan run in normal speed...Thank you again for your video make me has more idea to try to solve my issue. :D
Will definitely try using it in clamshell mode. The upsetting thing is I use a 1k external drawing monitor and it still heats up like crazy... and I can't use a DisplayPort because my monitor doesn't support it :(
Same, my monitor does not support a display port :(.. how did you resolve the issue..did anything work??
@@uchichaitachi2183 honestly, I didn't really solve anything :(
I installed a software that lets you regulate the fan speed and just increased fan speed to keep the computer running cool :/
It's kind of a bummer because it's not really any of our faults - it's apple's - and we're the ones left to try to figure things out on my own, when ultimately there isn't anything we can do because the model is just built that way :(
What a shame you did not use istat to show the wattage use on the radeon card, which ultimately is the issue we have. I use 2x 1440p screens (1 mac cinema display, 1 dell) I've tried thunderbolt, displayport, hdmi, all @60 hz, as that's the only hz supported on these (only 1 display at a time). I tried a 4k monitor @30hz as well same results.
Radeon card pins at 18watt usage, instead of 4-8w which would be the normal , doesn't matter if lid is open or closed.
If I start the mac with shift down (safe mode) it runs at 9watt no matter what.
Running just laptop display 4watt with gpu enabled.
Setting dell screen to 1080p, lid closed - now the "expected" behavior happens .. around 8 watt usage on GPU, even though its still a bit high.
I use a caldigit ts3+ dock with 1 thunderbolt connected to the laptop, but will try and get a usb-c to displayport cable (I doubt it matters though).
I agree, a specific wattage reading would have been better. I have since found an alternative to iStat which is 100% open source... github.com/exelban/stats
Results summary at 16:08
I have an air and only the USB c - hdmi cable gets hot. One got so hot I had to buy a second one
I have been running clamshell with a usb c to display port at 60hz and I still have the same problem.
Still an issue?
I used a vacuum cleaner blow function to get the dust out of my macbook pro 2020 and now the heating issue is gone .
Please try it first before using any other methods like fan software and change of cables.
I got my MBP back from apple support, fans stopped working exactly 1 month after my warranty expired (200usd for the new fans)... Brand new cooling system, still having this issue.
It's ridiculous how I can't connect my $2,500 computer to an external monitor without it burning everything inside. Last Mac I ever purchase.
Can you tell me how your camera is mounted?
I don't remember exactly how it was mounted at that time, however today I would recommend the Elgato Multi Mount.
Nice video. But it did not help me.
I have one rather new HD monitor and a 5 year old 4k monitor.
Without any fan control software, with both monitors connected, one to each dongle on either side of the MacBook, the fans go up at full speed and the machine heats up like anything.
I did try to use tg pro to control fan speeds manually or on a profile, but the moment my right thunderbolt port reached 58 deg C or so, the cpu became unresponsive. Disconnecting the monitor (not the dongle) on the right side brought the computer back in like 4 minutes.
I have the 2019 MB Pro 16” and was thinking of getting a Dell 34” UltraWide or the 43” UltraWide. Should my computer be able to handle either of those displays?
As I mention in the video, I use an LG 34" Ultra-Wide myself. It is important that you make sure that you connect to a port that allows for at least a 60Hz refresh rate (DisplayPort or USB-C would be the better option) and that you keep the MacBook Pro closed while connected to the external monitor.
10:00 talking about testing result
thank you!!!
Thanks I got pissed off today after a month getting new macbook pro 16 and the temp always heat kernal task process really high.. getting slow and hang.. then today
I pulled out the hdmi cable suddenly everything stop. no heat and the fans silent d. I found this video to know why