Second display problem with 10.9.4

I began experiencing problems with my DP-connected display after upgrading to 10.9.5. Thankfully, the altoronto fix worked for me, too.

However, in addition, I also had to open System Preferences --> Displays, then hold down the Option key and press Detect Displays before the second monitor would display at the proper resolution.

MBP late 2011, 17", 2.4GHz i7, 16 GB RAM, Radeon HD 6770M 10.9.5

2nd display: Samsung SyncMaster SA850 (2560x1440) connected via Apple's mDP to dual-link DVI adapter

brianwilson71: yes, i've verified with with find (Unix find) that i nuked all of the *windowserver*.plist* files in the Preferences directories (and, in a larger scope, that they're the only ones on the system drive, besides a named variant that are in Directory Services related directories

hanko: yes, i've been using an Apple Dual-DVI dongle since day one. no complaints for years until 10.9.3

csound1: if your substantiation is concerning the Engineering response, you can reference the bug reporter #17083693... oh, wait.. no you can't due to that fantastic bug tracking system. Here is a screen shot of their advice: http://imgur.com/PBrSz48

Same thing with a MacPro 3.1 Quad Core Xeon + Nvidia GeForce GTX 680 with 4 Apple Display 23".

Since 10.9.3, the one on DVI-D output always stay off, even after a PRAM reset. The monitor have been changed to verify.

None of Apple nor last avalaible Nvidia drivers solve the problem.

And 10.9.4 changes nothing.

It sounds like an OSX bug.

AN EMERGENCY SOS TO APPLE ENGINEERS

I'm having exactly the same problem on my iMac since 10.9.3. I already called Apple Care, but they told me it's an ASUS issue and they should have been providing OS X drivers (!!!) like they do on Windows. I say WTH? It happened after updating on 10.9.3, so it's clearly Apple's fault.

That's not how it supposed to be, Apple.

P.S. can anybody tell me why did I buy that costly AppleCare thing?

altoronto's solution does NOT work for me. I restarted in safe mode, had a com.apple.windowserver... file in both locations, deleted both, cleared trash, one of the windowserver files was still there, secure cleaned trash, restarted, same problem still there.

My specs:

MacBook Pro, 15-inch, Mid 2010

OS X 10.9.4

2.4 GHz i5

4 GB DDR3

I have two 30" apple CD wired to my Mac Pro 2012, and the graphic card is a flushed geforce gtx 680 4GB.

My displays have been working fine until the 10.9.3 upgrade. It all started then. Only one display worked after updating.

It seemed like many had the same problem, and I found a fix that has been working ever since - until 10.9.5.

I have been installing geforce and nvda kext from 10.9.2 after the 10.9.3 update and I had to do it also after the 10.9.4 update.

It solved the problem, and both displays started working again.

I installed the 10.9.5 update in good faith, and really believed that apple had fixed my problem in this update, but it happened once more.

The problem is, that this time, the mac can not boot after installing the 10.9.2 kext. After the apple logo and the spinning wheel beneath the apple logo stops and it is supposed to change to the login window, the machine restarts. Both displays are now working, but it does not help me, since I can not boot. When booting in to safe modus with the 10.9.2 kexts, both displays works, but I have to go back to the 10.9.5 kexts again, to get the machine to boot properly again.

This is a big problem! I am a video editor and colour grader, and I do not want to wait to the next upgrade or 10.10. I do also not want to use a day or two to reinstall everything again to try to get back to 10.9.2.

Are there any solutions? Someone who has had and managed to fix the problem?

Mac Pro, OS X Mavericks (10.9.5), Mac Pro 2012

I have clean installation of Mavericks for last two days, second display is connected to my MBP with DVI to DP cable. Since installation of a system up to fully working design workstation (all needed software inc. Adobe CC) the second display is working well. The clean installation began with 10.9.4, I had to resolve some minor issues with a few files' rights, then combo update to 10.9.5. No such issue with second display.

MBP early 2011, 2.2 GHz 16 GB RAM,

2nd display: ForMac Extreem Raven 2010 1600x1200, DVI, ~10 years old.

10.9.5 does NOT work for me

...but in a very different way.
This is a 2012 iMac 27" (A1419) with GeForce GTX 680 MX and Dell 2709W as secondary display, using an Apple-certified Thunderbolt -> DVI adapter.

The behaviour is that the secondary display, when I plug it in (again), works without problems. But only until the iMac goes to sleep.
After waking from sleep, the secondary display wakes, too, but I can ONLY see the mouse on the secondary display, no screen content (remains black).
I have to unplug and plug in again to see the screen content. This is different from before, as the display is now recognised at least, but it doesn't show anything.

I have tried the 10.9.2 kernel extensions, which worked for me for 10.9.3 and 10.9.4 without problems. DO NOT TRY THIS!

After installing the kernel extensions in the usual manner

(i.e.

- copy to /System/Library/Externsions

- sudo chmod -R 755 <myExtension>.kext/bundle/plugin

- sudo chown -R root:wheel -R 755 <myExtension>.kext/bundle/plugin

- clear caches

- restart )

the iMac will go into a reboot loop ("Your computer restarted because of a problem..." grey screen).

I had to manually re-install the 10.9.5 extensions (in the same way) to make it boot again using the installation USB stick to boot from (single user mode, i.e. holding 'shift' while booting didn't work either on that occasion).

If anybody knows a fix for this, I would be grateful.

I'm feeling increasingly disappointed about Apple I must say. That's been over a year that the iMac bug hasn't been fixed, the iPhone 6 bends like Beckham, my 2008 MacBook Pro crashes when I turn the WiFi off, iOS 8 was released with a bug, the fix of which (iOS 8.0.1) breaks connecting to the network.

There's been no design update to the MacBook Pro since 2009 (isn't theLenovo Yoga 2 design so much more appealing), and the HTC One M8frankly seems the best phone on the market right now.

Apple, what is going on with your Quality Control?!?

I tried Altoronto's solution but it didn't work for me.

For the record I have a MacBook Pro, Mini DisplayPort/Thunderbolt -> DVI adaptor and a Samsung monitor.

I've tried: deleting *windowserver* plists in all Preferences folders, I've tried disabling kext restrictions, I've tried resetting NVRAM, I've tried deleting private/var/db/displaypolicyd, I've tried unplugging and replugging the monitor, etc.

Nothing has worked.

Bug #18074341 filed.

we got ours working again by using the HDMI output of the card instead of mini dvi and buying an HDMI > DVI-I cable to connect to monitor. Hope this helps someone...

Hmm... I'm afraid that this particular fix won't do the trick for systems with AMD graphics cards; I should have paid closer attention to your post before I responded to you specifically. I was just trying to be helpful by relaying what had worked for me.

It's distressing that Apple keeps delivering kexts that are clearly causing problems.

Just got off the phone with support, then senior support. Tried all the usual's, SMC reset, PRAM reset, port tests....

Used a program sent to me to capture my system settings. Uploaded it to engineering.. More to come........

Nice.. keep fighting the good fight.

Feel free to refer them to either pre-existing filed bugs (17083693, 16197028). Presumably the latter, and definitely the former, have system state captures and logs attached out the wazoo.