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so i did find both files and deleted them, but i still get the same resizing of windows. i also Pram reset. if i position all the windows like i like and power off my 2 dell monitors it also resizes the windows when i turn monitors back on, this is such a pain i can't figure it out.
 
Hmm, you might need to push it a little further. Maybe try it with a PRAM reset:
  1. Delete the windowserver plist files
  2. Shut the machine down
  3. Switch the monitors off
  4. Locate the following keys on the keyboard: Option, Command (⌘), P, and R. You will need to hold these keys down simultaneously in step 6.
  5. Turn on your Mac.
  6. Immediately press and hold the Option-Command-P-R keys. Continue holding the keys down until your Mac restarts, and you hear the startup sound for the second time.
  7. Switch the monitors on
Edit: a few extra thoughts. The nMP is capable of 4K out of the box so it might be worth trying the above with the monitor switched on. If that still doesn't work, try the getting a Plist editor such as Xcode (which is free) and having a look at the plist files. Or post them here so that we can all have a look and try to figure it out.



I also tried all this but no fix. all i have to do is turn dell P2715q power off and back on and all the windows are resized! this sucks
 
how do i copy the plist file to past it here?
btw did you know that on these dell monitors if u turn the power off it kills the power to the usb ports on it, so your keyboard won't wake the computer up till you turn on the monitor and forget charging something.
 
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how do i copy the plist file to past it here?
btw did you know that on these dell monitors if u turn the power off it kills the power to the usb ports on it, so your keyboard won't wake the computer up till you turn on the monitor and forget charging something.

Here's a link to my Dropbox. You can upload the files there: https://www.dropbox.com/request/f22GCKx2ToqfKy2mwVeS

I don't use the USB ports on mine so didn't know that it powered them down. However, I've had problems with attaching important devices to USB hubs before and avoid it if I can.
 
how do i copy the plist file to past it here?
btw did you know that on these dell monitors if u turn the power off it kills the power to the usb ports on it, so your keyboard won't wake the computer up till you turn on the monitor and forget charging something.

I've had a look at the file and the only odd thing is that one of your monitors is running at a lower refresh rate than the other. Guess that's the one on the HDMI. Other than that, everything seems normal. Which is frustrating.

You only uploaded the main system plist and not the user plist (the one with the string of random characters in its file name). The problem might be with the user plist file but I admit it's starting to look doubtful.

Other things to try:
  • It might be the screen saver. If the screen saver that you're using is not one of the standard Apple ones, try using a standard one. It may be that the screen saver is changing the resolution when it kicks in. It's unlikely but worth checking.
  • It might be the HDMI. Disconnect the HDMI monitor completely, delete the two windowserver plist files and restart the machine. See if the problem is still there. If it works OK without the HDMI monitor, all you'll need is another DisplayPort cable.
  • Some people have had success using SwitchResX - http://www.madrau.com/srx_download/download.html - so it might be worth giving it a shot.
  • Post a question on the Apple support forum with a link back to here in the hope that someone else knows how to fix it.

After that, I'm out of ideas. But it's worth keeping hope in your heart because you seem to be the only person with this problem so it almost certainly can be fixed.
 
I've had a look at the file and the only odd thing is that one of your monitors is running at a lower refresh rate than the other. Guess that's the one on the HDMI. Other than that, everything seems normal. Which is frustrating.

You only uploaded the main system plist and not the user plist (the one with the string of random characters in its file name). The problem might be with the user plist file but I admit it's starting to look doubtful.

Other things to try:
  • It might be the screen saver. If the screen saver that you're using is not one of the standard Apple ones, try using a standard one. It may be that the screen saver is changing the resolution when it kicks in. It's unlikely but worth checking.
  • It might be the HDMI. Disconnect the HDMI monitor completely, delete the two windowserver plist files and restart the machine. See if the problem is still there. If it works OK without the HDMI monitor, all you'll need is another DisplayPort cable.
  • Some people have had success using SwitchResX - http://www.madrau.com/srx_download/download.html - so it might be worth giving it a shot.
  • Post a question on the Apple support forum with a link back to here in the hope that someone else knows how to fix it.

After that, I'm out of ideas. But it's worth keeping hope in your heart because you seem to be the only person with this problem so it almost certainly can be fixed.


thanks, I've tried all that, my video card has 2 dvi out but only 1 each mdp hdmi
so yes one monitor on each my monitors do not have dvi. i guess if this guy is making software to take control of monitors must be happening else where too! not to mention the way the dell monitors act, meaning their power saver and the way the switch around its horrible i wish i could disable all that. i just want my mac to handle all that not the monitor.
AND i just tried that software still doesn't work my windows keep resizing, after restart after screen saver after manual power off of monitor this is stoopid!
 
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