display rotation: MacBook Pro (15-inch, 2017) gpu/cpu usage and fan I've got the most beefed up version of MacBook Pro (15-inch, 2017) from https://support.apple.com/kb/SP756?locale=en_GB.

I've got two monitors:


24" via HDMI using USB-C Digital AV Multiport Adapter
. Rotation: 90 degrees. Scale: 1920x1080 (standard).
28" via USB-C to DisplayPort 1.2. Rotation: Standard/None. Scale 2560x1440 (scaled down).


I am not sure if the rotation or something else is the issue here but my macbook fan seems to be very loud constantly. The rotation is being done on the GPU right? I sometimes use the screen on the macbook as well, this only makes matters worse and the fan gets loud. Strangely, my less powerful macbook (not pro) 13" 2015/2016 edition handles this setup just fine.

Anyone else have any clues as to what is going on here?
I would suggest you download 'Temperature Gauge 4.1' to see if fans are running at high rpm or if they are just noisy. Noisy fans could be a sign of trouble. This app will also show you the temperature of various parts of your Mac. This app is not cheap at $18. And is available here