MacBook – display rotation: MacBook Pro (15-inch, 2017) gpu/cpu usage and fan

displayhdmimacbook protemperature

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: 1920×1080 (standard).
28" via USB-C to DisplayPort 1.2. Rotation: Standard/None. Scale 2560×1440 (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?

Best Answer

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

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MacBook Pro no longer outputs native resolution to external monitor when rotation is on

I had exactly the same problem, with the same monitor, Dell U2713 / U2713H / U2713HM / U2713HMt. I had two of them plugged in to my late-2014 Retina Macbook Pro 15" and only one was experiencing the problem. I tried 100s of different solutions (I can say for sure it's definitely not the cable!) and nothing worked. Just like you, I could get landscape 2560x1440 but not portrait. And I was getting the same error WindowServer: description_for_mode_number: IOFBGetPixelInformation failed (-536870206) when I tried to switch to portrait. That is, until I came across this: https://discussions.apple.com/thread/5485930?start=0&tstart=0. I regenerated the EDID override for the screen using the Ruby script, copied it into the correct location, rebooted and now it works again. I think I caused the problem by playing a game (Trine 2) in vertical (720x1280) resolution - after that, I tried everything to get the screen back to displaying portrait 1440x2560 but to no avail. Until I got the Ruby script from the thread above which fixed it.

Just to note, in case the linked thread disappears... the override file is in /System/Library/Displays/Overrides/ under the folder DisplayVendorID-10ac which is for Dell displays. The file for the U2713-series of monitors (and I think the U2711-series too) is DisplayProductID-4080. The contents of the file should be:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>DisplayProductName</key>
  <string>Dell U2713HMt</string>
  <key>IODisplayEDID</key>
  <data>AP///////wAQrIBATDA1NB4WAQSlPCJ4Iku1p1ZLoyUKUFSlSwCBALMA0QBx
T6lAgYABAQEBVl4AoKCgKVAwIDUAVVAhAAAaAAAA/wBHSzBLRDI3TjQ1MEwK
AAAA/ABERUxMIFUyNzEzSE0KAAAA/QAxVh1xHgEKICAgICAgAA0=
</data>
  <key>DisplayVendorID</key>
  <integer>4268</integer>
  <key>DisplayProductID</key>
  <integer>16512</integer>
</dict>
</plist>

MacBook Pro 13″ 2015 CPU and GPU temperatures

The high temps are mostly because of flash. Had a simmilar problem with my 15" macbook. I bought a fitting screw driver from amazon for 3€ opened and cleaned my mac and the temps went down by about 10°. Try it out it could help.

Best Answer

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MacBook Pro no longer outputs native resolution to external monitor when rotation is on

MacBook Pro 13″ 2015 CPU and GPU temperatures

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