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TheMadBrewer

macrumors regular
Original poster
Feb 11, 2008
206
44
Marina del Rey, CA
So I have an LG monitor connected to my 5K 2017 iMac. It is in portrait mode. It has worked fine for a couple of years, but suddenly when I wake the computer it reverts to landscape mode. I have set up a hotkey to call displayplacer to put it right but I'd rather figure out why it is doing this.

Some background:

About 10 days before this started happening I finally upgraded to Catalina (I had two 32 bit apps that I couldn't do without that I finally found replacements for). Everything was fine for those 10 days (which did include a couple of reboots).

One day when I woke the computer the external monitor was in a weird state -- each app on that monitor was in a little tiny window of its own -- sort of like when you do "Display all apps" but these were all functioning (just tiny) and I couldn't find anything to fix it. I tried expanding the windows to "normal" size -- that worked except the fonts were tiny. Zooming to an absurd level made it easier to read but tab headings, menu bar text, etc was all microscopic and hard to read. So I rebooted and that solved the "tiny windows" problem but now when waking the monitor is in landscape mode.

The displayplacer fix is tolerable and functionality doesn't seem to otherwise effected but its really irritating and I would like to fix it :)

I have deleted various plists and reset the RAM as suggested by some stack overflow posts. To no avail, obviously.

Thanks in advance...
 
OK, nearly a year later and my problem is back. I checked back hoping I'd found the magic solution and just forgotten, but no :(

A couple of weeks ago I installed an OWC ThunderBay RAID and decided to drive my external monitor from it's DisplayPort. It all worked fine (with lots of reboots in there) and but once with no warning the monitor orientation was off.

Luckily I found my displayplacer automator so the issue is quickly solved, but what a paid :)
 
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