Permissions problem in displaypolicyd

Thanks for your comment I could resolve very quickly the same problem as you described it. I spent half an hour with the support of Apple and unco I could detect the problem was in private / var / db / displaypolicyd, never repaired mode repair permissions.

I found his comment did his footsteps and the solution was then instant restart. Thank You So Much!

Use the Go To Folder feature in the finder to navigate to private/var/db/displaypolicyd. Delete the folder named displaypolicyd, which should be empty. It was empty on my computer. Go to your disk utility and verify the disk permissions. It should no longer pop up in the results. Reboot your computer and then run the verify disk permissions in the disk utility again just to make sure it is still not there. I did this last night and now my MacBook Pro wakes just fine from sleep mode, it restarts just fine, it shuts down just fine and hasn't randomly blacked out since last night. I'm running a Late 2011 15-inch MacBook Pro.

This has helped me, but doesn't work by typing private/var/db/displaypolicyd in Finder > Go > Go to folder.

I followedthis steps to show hidden files in OS X Yosemite and the navigated to "Disk name">private>var>db>displaypolicyd (an empty folder?! strange) and sent it to trash.

Did you put a forward slash before private, because if not that's why it didn't work in the go to function of the finder. Sorry i forgot to mention that part. Glad you were still able to use the fix though.

BAthompsonite wrote:

Use the Go To Folder feature in the finder to navigate to private/var/db/displaypolicyd. Delete the folder named displaypolicyd, which should be empty. It was empty on my computer. Go to your disk utility and verify the disk permissions. It should no longer pop up in the results. Reboot your computer and then run the verify disk permissions in the disk utility again just to make sure it is still not there. I did this last night and now my MacBook Pro wakes just fine from sleep mode, it restarts just fine, it shuts down just fine and hasn't randomly blacked out since last night. I'm running a Late 2011 15-inch MacBook Pro.

That did it for me but the folder cannot be found now: OS X did not recreate it. I hope that won't affect any stability. wait & see

I personally don't want OS X to recreate that folder. It appears to have been the root of all the evils that prevented me from consistently using my Macbook Pro for at least an entire month. I couldn't get anything done. I even bought an SSD when the problem first started (which I don't regret at all because my Macbook is fast as **** now) because I thought my hard drive was failing. As of right now I feel like the nightmare is over but we shall see.

I had the same problem since now few days on my MacBook 15" Mid-2011 on Yosemite 10.10.3. I was able to get it to work again by repairing file permission and disk but then the problem was appearing again and I noticed that displaypolicyd file was always the one to be repaired. Searching using that term took to this discussion.

I have just tried the solution proposed by brandonfishreman and it works for the moment. Thanks Brandon.

Just an FYI - tried this solution to resolve external monitor issues related to this thread. My folder had one file inside - displaypolicyd.cache. After restart, the 2015 MBP wouldn't recognize the monitor at all, even after restarts and reset of PRAM. So, restoring the file resolved that issue but overall issue remains. On to next possible solution.

I tried that first. After deleting it, my MBP wouldn't recognize the external monitor at all, until I restored the folder. In my case it wasn't empty, it had one file called displaypolicyd.cache inside of it. So, unless there's a way to allow it to recognize external monitors after that step, I'm stuck.

I don't have the problem when the external monitor isn't connected. Everything works fine. So my previous 'solution' was to ditch the external monitor. Anyone have any positive experiences with external monitors after deleting the Displaypolicyd folder?

Update: The problem restarted again after 1 day and continues. I couldn't find a permanent solution. I'm able to get the Mac to work for few hours by trying a combination of this solution, disk permission repair (when I can boot on Recovery mode -- doesn't work all the time). Still looking for a permanent solution. I suspect that the "Duet Display" Mac App has something to do with this, so now I quit it and not let it start by default. I will see what it does.

Indeed, I also started the have the problem again after 1 days, and couldn't find a solution. After some reading, I got to suspect the "Duet Display" App may be behind this, so I quit and it and not let it start by default. Will see what happens 🙂

Same story here. the problem also persisted after a reinstall. How ??? That makes no sense As far as im concerned.

Deleted the folder and no permission issue since.

One bug remains where flash video player sometimes get croped with part of the image becoming black while the video is still playing. I have to exit fullscreen and back to fix it.

Yes as always. My only graphics problem was these flickering blocks of pixels.

Check the displaypolicyd.log in Console

u>101322527 /usr/libexec/displaypolicyd: Version: V1.0 starting [0]

u>101570392 /usr/libexec/displaypolicyd: Started at Sun Apr 26 19:52:52 2015

u>32863695 ERROR: unable to create path : /var/db/displaypolicyd/

I guess that the OS tries to create a file in the folder displaypolicyd but it fails.

However, I can see in my system in usr/libexec/ a file named displaypolicyd which is a Unix Executable file.

Did you also delete it?

I just had a mail from Apple Developer Support. They want to further investigate the issue and ask for a full report of my system.

So I suggest you all to report your problem to apple in bug reporter http://bugreport.apple.com