I've got at work two external displays + a MBP 13" 2017. (OS: Mojave 10.14.1 Beta)

The monitors are both BenQ (GL2450), connected via HDMI to a Thunderbolt 3 port. (one through hub, one through plain adapter)

Now I have rotated the left screen by 90 degrees and set up the Internal Display on the right, it all works fine. Until I come back to work after disconnecting everything for > 1h. Then all my screens rotation are messed up, the normally pivoted display is back to default, and the default display is now rotated by 90 degrees, though I did NOT switch Ports on the MBP or Adapters.

Only way to fix this is to manoeuvre the mouse through messed up displays and go to the system settings and change everything back to normal. Problem there is, if I rotate the most left monitor (default -> 90), it asks for confirmation, and most of the times I can't reach it fast enough through the messed up displays. Interestingly enough, if I rotate the middle monitor first (90 -> default), it doesn't ask for permission.

It's annoying to do this every morning I arrive to work, though I started to see it as kind of a challenge. No the OS is not the problem ... I'm in this situation way longer than Mojave was announced.

EDIT: tried to narrow down the problem by plugging in cables at different times, rebooting, other monitors etc. nothing of that worked. I'm out of ideas.

  • Is there any new solution for this, I have arrangement(macbook pro, two dell UP monitors) where one monitor is 90 and one is standard rotation. but every-time I plug in the hdmi to my mac 80% of the time it changes the rotation of monitors or better to say it switches the rotation setting saved for monitors. 90 becomes standard and standard becomes 90. This is really annoying to set the arrangement again, Is there any solution yet. – sopan shirdhonkar May 31 '19 at 1:33
  • I'm sorry to inform you that I don't have a solution for this up until today. I myself try to reattach the displays in a different order until it works, or just figuring it out with my head on the side :D ... What did help for a little time was a small Apple Script that automated the Screen rotation by imitating the clicks in the windows. – TheRealHypo Jun 5 '19 at 14:26
  • The issue still persists on my MacBook with OS X 10.15.3. – Jiashen Cao Feb 11 at 21:49
  • Does also still persist on my MacBook 1.5 years later... – TheRealHypo May 11 at 16:22
  • In 2020 this is still a problem – Robotsushi May 21 at 0:37

There is a button labelled "Gather Windows" that ought to help you, but I am also looking for a real fix and there seems to be none.

| improve this answer | |
  • Not a real answer, sadly. But yes the "Gather Windows" button was known to me. I already lost my hope to find an answer to this :D – TheRealHypo Jan 11 '19 at 16:41

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .