16-Inch MBP Getting Hot with 22-Inch LG Ultrafine

[CLASSIC MUSCLE]

I have the new 16-inch MBP and it stays very cool on/off factory charger but gets very hot when it's connected to the LG Ultrafine. It doesn't lock up or stop, but it still gets pretty hot. I just think it's weird a simple external monitor gets this powerhouse computer this hot? The LG Ultrafine I have is the older one, with (1) powered USB-C only, it is not the new 23.7inch one with the (2) Thunderbolt 3's.

Does anyone think the newer LG's with Thunrderbolt 3's would make the MBP run cooler? I just hate feeling like my laptop is getting so overheated when simply connected to a display. It even stays a little hot when the displays are off and it's connected to the LG. Seems bad for the MBP pro long-term to stay hot all the time?

 

[chrfr]

I have the new 16-inch MBP and it stays very cool on/off factory charger but gets very hot when it's connected to the LG Ultrafine. It doesn't lock up or stop, but it still gets pretty hot. I just think it's weird a simple external monitor gets this powerhouse computer this hot? The LG Ultrafine I have is the older one, with (1) powered USB-C only, it is not the new 23.7inch one with the (2) Thunderbolt 3's.

Does anyone think the newer LG's with Thunrderbolt 3's would make the MBP run cooler? I just hate feeling like my laptop is getting so overheated when simply connected to a display. It even stays a little hot when the displays are off and it's connected to the LG. Seems bad for the MBP pro long-term to stay hot all the time?

It's hot because using the external display causes the faster discrete GPU to run continuously. This is normal.

 

[robvas]

Define "hot"

 

[CLASSIC MUSCLE]

Define "hot"

I don't have the exact temps, but it gets pretty hot to the touch in the center by the screen, up above the Touch Bar. I just would think a machine with these "specs" could handle powering an external display without appearing to work so hard.

 

[Peter118]

A simple search : https://forums.macrumors.com/threads/16-is-hot-noisy-with-an-external-monitor.2211747/

 

[pneves1975]

"With great power comes great power (consumption)".

dGPU kicks in when connected to external monitor. Hence some people prefer the compromise of a smaller screen on the 13" but with much lower temps/consumption than 15/16 machines.