(2019) 16" is HOT & NOISY with an external monitor! :(

[pneves1975]

WOW - it really is sad that Apple is ignoring their loyal customers

Apple is not ignoring you. Maybe you are ignoring the facts. Same heat pipe for CPU and dGPU, dGPUs will always be power hungry to deliver better performance than iGPU. dGPU uses external memory that also uses more power.

I have been saying this in the forums but some users still wait for a miracle from Apple. dGPU always like this since 2011. Some were hopping for better thermals with 16" but Apple took advantage of it to lower fan speed (previously idle around 2100, now 1800). This is why I am rocking a 15 iGPU 2015 machine.

I really like the size of the 16, maybe next gen will also feature a iGPU model. As it stands I will be happy with a 14" iGPU, more screen real estate and controlled thermals.

But, get the memo people! dGPU will always be like this, unless thermals are way better than they are now. On a desktop you get much more thermal headroom and can use dGPU without issue since you are away from it. On a laptop you are using the keyboard and the heat is noticeable. Desktop replacement in windows world are behemoth machines that are also noisy to keep thermals under control.


My take is if you need a dGPU stay away from laptops. Do heavy lifting on a desktop machine and use laptop for mobility. Stop asking thin and light laptops to do what a desktop can do and complain about heat and noise...

 

[themcfly]

Apple is not ignoring you. Maybe you are ignoring the facts. Same heat pipe for CPU and dGPU, dGPUs will always be power hungry to deliver better performance than iGPU. dGPU uses external memory that also uses more power.

I have been saying this in the forums but some users still wait for a miracle from Apple. dGPU always like this since 2011. Some were hopping for better thermals with 16" but Apple took advantage of it to lower fan speed (previously idle around 2100, now 1800). This is why I am rocking a 15 iGPU 2015 machine.

I really like the size of the 16, maybe next gen will also feature a iGPU model. As it stands I will be happy with a 14" iGPU, more screen real estate and controlled thermals.

But, get the memo people! dGPU will always be like this, unless thermals are way better than they are now. On a desktop you get much more thermal headroom and can use dGPU without issue since you are away from it. On a laptop you are using the keyboard and the heat is noticeable. Desktop replacement in windows world are behemoth machines that are also noisy to keep thermals under control.


My take is if you need a dGPU stay away from laptops. Do heavy lifting on a desktop machine and use laptop for mobility. Stop asking thin and light laptops to do what a desktop can do and complain about heat and noise...

You're missing the point. Read the whole thread and try again.

 

[austyn23]

Good to know I'm not the only one... I would have got a 1080P monitor instead of a 2K if I knew about this before

That is not the solution... you have a PRO machine with an amazing Retina display, a 6/8 core brain, 32 power of ram and a great DGPU and you would plug it to a 1080P monitor?

Apple claims you can plug two 6K monitor to this... how is that it can´t handle a f****** 2K display??

They have to fix this...

 

[pshufd]

You mean dGPU, right?

Not sure what he means but I would personally prefer a dGPU myself as I work with high-res external monitors.

 

[itakemycoronawithalime]

So it is beginning to bother me I do not make use of my internal display and toucher. If I was to utilize both 4k displays and my internal...what are we talking as far as lifetime deterioration of this 16" MBP? If it is just a matter of dealing with the slight fan noise at idle that's one thing. If my 16" MBP hangs between 70-75 or so with all this being driven is it that detremental?

 

[MacBoy-HH]

You mean dGPU, right?

Yes

 

[gsbabil]

I sold my last one with the butterfly keyboard, I am not doing that again; Apple is going to take it back or I will speak with an attorney.

Hi @ActionableDave,

Could you please keep us posted on this? I'd like to be able to exchange this MBP-2019 model as well for a no-dGPU model if possible.

Needless to say, if I knew about this issue of fan-noise with external monitor beforehand, I would simply not have purchased this model.

Thanks a lot.

 

[gsbabil]

# 10.15.4 Beta 6 (19E264b) - Open Lid (No-Clamshell) Mode

• Radeon High Side: ~19-20 W

 

[Salomonander]

Sorry, im sure this has been asked before, but does the dgpu only heat up with 4k monitors or any monitor? And is there a difference between 5300 and 5500 regarding this issue? Thanks

 

[gsbabil]

Sorry, im sure this has been asked before, but does the dgpu only heat up with 4k monitors or any monitor? And is there a difference between 5300 and 5500 regarding this issue? Thanks

In short, the MBP-2019 pushes the Radeon GPU to use ~19W power even under normal use when both the MBP screen and the external monitor are being used simultaneously i.e. MBP is _not_ in clamshell mode.

> but does the dgpu only heat up with 4k monitors or any monitor?

- The problem seems to be monitor agnostic (previous posts report both 4K and 1080p screens).
- People found luck using the MBP-2019 in "clamshell" mode.

> And is there a difference between 5300 and 5500 regarding this issue?

- According the previous posts from other users - no.
- Both 5300 and 5500 demonstrate similar extra power draw and unnecessarily overheating behaviour even when there's no apparent pressure on the dGPU.

Hope this helps. Thanks.

 

[Salomonander]

This helps a lot thanks.

 

[Mr. Incandenza]

I can report that it seems that 10.15.4 has helped slightly with the temperature issue but massively with the sleep issue.

Every time I turned the 16" on from sleep I'd need to unplug and replug in my 5k monitor, and it would default back to 100% brightness. This seems to be finally fixed.

Hopefully the sleep stability issues as well but we shall see.

 

[Salomonander]

So, im still wondering if there is a difference between 5300 and 5500... i have read from various sources that the 5500 gets hotter... i think it also uses one extra fan. but regarding this issue they behave the same?
sorry this is super important for me. basically im trying to find out if he 5300 might be slightly more quiet. Thanks

 

[Mr. Incandenza]

Hey everybody I can definitely say that 10.15.4 is a large improvement for me.

Fan curve seems to be fixed, external monitor and sleep crashes gone... Finally the computer works like intended.

 

[lǝʍɐd]

Clamshell mode using 2560x1440 monitor doesn't make any difference on beta 6. Shame. Gonna buy eGPU because I simply hate that using simple Safari is triggering fans so high.

 

[itakemycoronawithalime]

Hey everybody I can definitely say that 10.15.4 is a large improvement for me.

Fan curve seems to be fixed, external monitor and sleep crashes gone... Finally the computer works like intended.

Downloading now, I have a 16" MBP so I decided to try it now.
[automerge]1584716023[/automerge]

Clamshell mode using 2560x1440 monitor doesn't make any difference on beta 6. Shame. Gonna buy eGPU because I simply hate that using simple Safari is triggering fans so high.


View attachment 900092

How are you driving the monitor? USB-C, HDMI? Is there adapters involved? Speak to me.


edit**: So after installing 10.15.4 high side still pulls high teens (wattage) when open lid.
however, too early to tell if it refined how everything runs in clamshell. Maybe it runs even cooler in clamshell now. We will see.

 

[gsbabil]

Downloading now, I have a 16" MBP so I decided to try it now.
[automerge]1584716023[/automerge]

How are you driving the monitor? USB-C, HDMI? Is there adapters involved? Speak to me.


>> edit**: So after installing 10.15.4 high side still pulls high teens (wattage) when open lid.

This is known result and expected. ~19W in open-lid with external-monitor mode.

>> however, too early to tell if it refined how everything runs in clamshell. Maybe it runs even cooler in clamshell now. We will see.

This should be around ~7W and quiet fan noise.

Most people here I think are complaining about the fact that open-lid-with-external-monitor shouldn't draw ~19W causing noisy fan. Thanks.

 

[caupljx]

How are you driving the monitor? USB-C, HDMI? Is there adapters involved? Speak to me.


>> edit**: So after installing 10.15.4 high side still pulls high teens (wattage) when open lid.

This is known result and expected. ~19W in open-lid with external-monitor mode.

>> however, too early to tell if it refined how everything runs in clamshell. Maybe it runs even cooler in clamshell now. We will see.

This should be around ~7W and quiet fan noise.

Most people here I think are complaining about the fact that open-lid-with-external-monitor shouldn't draw ~19W causing noisy fan. Thanks.

Mine is still 18w in clamshell mode, and I’ve seen a couple other people have the same issue regardless in clamshell mode

 

[itakemycoronawithalime]

How are you driving the monitor? USB-C, HDMI? Is there adapters involved? Speak to me.


>> edit**: So after installing 10.15.4 high side still pulls high teens (wattage) when open lid.

This is known result and expected. ~19W in open-lid with external-monitor mode.

>> however, too early to tell if it refined how everything runs in clamshell. Maybe it runs even cooler in clamshell now. We will see.

This should be around ~7W and quiet fan noise.

Most people here I think are complaining about the fact that open-lid-with-external-monitor shouldn't draw ~19W causing noisy fan. Thanks.

Would you still run everything to get your money out of the touchbar/speakers/Retina display/fingerprint sensor or would you clamshell it to lower the taxi on the laptop?

 

[MrGunnyPT]

This helps a lot thanks.

Keep it under clamshell mode and use a external mouse and keyboard to work under heavy load or if you want to avoid the heated keyboard/case.

I only work without monitors when I don't need the GPU (which is 70% of the time)

 

[caupljx]

Can someone with 2019 or 2018 15 inch confirm that if the dGPU will use 18-20W when connecting to external monitor?

 

[silvetti]

Can someone with 2019 or 2018 15 inch confirm that if the dGPU will use 18-20W when connecting to external monitor?

Please don't add more confusion and make your questions correctly (as to this topic).

Can someone with 2019 or 2018 15 inch confirm that if the dGPU will use 18-20W when connecting to external monitor and using laptop screen at the same time.

 

[Nuno Lopes]

More than one monitor pushes the dGPU to ~20w. With a good adapter, clamshell mode stays ~5w regardless of the external monitor resolution (unless maybe 1080p with low refresh rates).

As for fan noise, it depends on the unit I guess. Mine at 64c produced no fan noise. At 75c sustained is not loud.

PS: My Mid 2015 15” with iGPU was louder with more than one monitor.

 

[pneves1975]

You're missing the point. Read the whole thread and try again.

Am I? Time will tell
[automerge]1584886176[/automerge]

More than one monitor pushes the dGPU to ~20w. With a good adapter, clamshell mode stays ~5w regardless of the external monitor resolution (unless maybe 1080p with low refresh rates).

Hello Nuno!

I believe that dGPU is handling different pixel aspect ratios. When using the integrated panel and external monitor GPU has to deal with different pixel aspect ratios on internal and external effectively processing a much larger number of pixels than the physical ones. Default is now "looks like 1680x1050" for internal I believe.

Somehow iGPUs are much better power-wise in this regard. Moreover AMD is not known for efficient power usage on graphic cards as opposed to nVidia.

 

[Roystal]

Created an account so i can participate in this discussion.

Same exact problem like everyone else here, fans goes to 4000 rpm and mac gets really hot just by watching youtube videos on external monitor. Doesn't seem like there is much of a solution on this thread.

So im really curious, for those that didnt sell or downgrade to an older macbook pro, how did most of you live with this issue? The fans are annoying but my main concern is if the heat and the constant running fans will affect my mbp in the long run...