Secondary monitor issues with iMac after 10.6.5 upgrade

After the upgrade to 10.6.5 yesterday, my second monitor on my iMac has been turning to snow, and then coming right back to normal about every 10 seconds.
I've tried rebooting with and without the monitor connected, and I'm still getting the same problem.
Anyone one else having this issue?

Tried the Time Machine restore with no luck. The second monitor was still flashing away. Also tried Disk Utility to verify the disk then applied the Combo update. Again no luck.
The only way I was able to fix it was by wiping and reinstalling Snow Leopard from the installation disk. The monitor worked fine until I installed the 10.6.5. update and it went back to the same thing.
I wiped everything again and did the combo update back to 10.6.4. Now everything's working just as it should.
Sounds to me like it's a driver issue... Is there a way to feed back to Apple my model numbers and the problems I'm having? (other than sitting on the phone for hours)

Similar Messages

Secondary monitor displays with colorshift

secondary monitor displays with colorshift in LR4.1rc2. this is on windows 7/64.
Both my monitors i have are calibrated with spyder3, one is hardwarecalibrated eizo CG243, the other a HP2475 calibrated with spyder4 elite software.
Colorshift shows same characteristics when i switch LR app window with secondary window.
IT looks as if sRGB profile is applied to the secondary preview, because of the strong/overly saturated colors.
It seems to me a softwarebug, which makes secondary display inusable.
How is color management supposed to work in LR4?

It works fine with me (LR4.1 RC2, but previously used RC1, LR4.0, LR3.6... all worked the same).
I have a wide-gamut HP LP2475w (approx Adobe RGB gamut) and a Samsung193P (approx sRGB). Both calibrated/profiled with Color Munki Display, but I've previously used Eye One and Spyder units. After calibration/profiling, LR main and secondary display look the same in both Loupe and Develop view, and no matter which is LR's primary display. (Obviously, colours outside sRGB gamut don't look the same!)
I've just checked, and it still seems to be the case on my set up (W7 64-bit).
I can't think what the problem might be. I guess you've checked in Control Panel / Color Management that the correct profiles are assigned to each monitor. And I guess that you've got a video card with dual LUTs that allows separate calibration (mind you, I've never come across any cards that don't have separate LUTs, but apparently there are some).
PS - Web view might be different, as I think LR uses IE for rendering in web view only, and IE doesn't colour-manage properly.

Are there any known compatibility issues with iMac and Google Chrome?

Does anyone know of any compatibility issues with iMac and Google chrome. A Facebook friend who is a photographer posted recently that Chrome had ruined his iMac. He stead that it ran an update on itself that made safari and chrome unusable - slow running overall. In the end he had to reinstall his OS.
Is anyone aware of this and should I un-install Chrome off my Mac?
Thanks,
S.

There is nothing official but your post will attract a variety of personal experiences. I once loaded Chrome and found myself with the dreaded MacKeeper malware, loads of pop ups and conflicts with my system. Part of the problem is the huge range of add ons you are tempted to take on, many of which are not as strictly tested as Apple extensions. I would say, unless you have a specific reason, leave it alone. The best browser is Firefox and for Macs, Safari is OK.

HT4623 issues with texting after the 6.1 update on my iPhone

issues with texting after the 6.1 update on my iPhone

My wife and I are on different networks ie GCI vs AT&T after we both updated our iphones to 6.1 we no longer can receive texts messaging even though both are phones say the message was delivered. we can however text with other iphone users as long they are withing the same carrier and with everyone as long as they are not other iphones regardless of the carrier as well as with other iphon users that are still using 6.0. My wife and I also have ipads with wifi only and the one we updated to 6.1 is having the same issue while the one that is still 6.0 has no issue and will send and receive messages with out issue even to and from the 6.1 devives that are having issues. I have contacted both service providers and was told it is a Apple messaging issue. At this point I just would like to find and reinstal the 6.

Is anyone else having issues with airplay after the Lion update?

Is anyone else having issues with airplay after the Lion update? It sees the libaray but won't connect...

I'm having the same issue. So far all lion has done for me is make all my microsoft office documents un-readable until I upgrade (about $150) and lose my home share capabilities...can anyone assist with this?

Has anyone else had issues with dropping the wifi connections since upgrading to Yosemite

has anyone else had issues with dropping the wifi connections since upgrading to Yosemite

Looking at the Yosemite forum, it is obvious that this is a very common issue. You might want to post in that forum for help and advice.
OS X Yosemite

Starting issues with iMac 27 i5 quad after crucial RAM expansion

I have read through a few threads regarding issues with crucial RAM upgrades in iMacs but they don't quite match what I am experiencing.
I have installed 2 x 2 GB Crucial RAM (manufacturer 0x80CE) in addition to the pre-installed 4GB. The iMac works fine without any glitches, freezes or crashes. However, when I try to start it up in the morning I can hear the HD starting up and stopping once. The start chime doesn't sound and the display stays black. I take out the 4GB and the computer starts up without any problems. I then switch it off again, install the other 2 RAM again and lo and behold: all works fine. Until the next morning. I do not entirely disconnect the iMac, which is an Apple refurbished machine, I just switch it off.
The first time that happened, I thought it was another problem like USB, bluetooth etc. So I systematically disconnected and reconnected all peripherals, I even used a USB mouse and keyboard and tried to start up from the restore DVD. So I went through all that pain.
If there is an existing thread I would appreciate if you could point me in the right direction because I couldn't find anything like this on this forum.

Did you test all 4 modules one at time in a top slot as suggested, to see if they are all working?
● If any one of the modules fail to properly boot the iMac, factory or crucial then do not reinstall it into the iMac.
● If all of the modules individually boot the iMac, then try reinstalling the Crucial in the top slots, the factory in the bottom slots and Startup the iMac reseting the PRAM.
http://support.apple.com/kb/HT1379
+1. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.+
+2. Turn on the computer.+
+3. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.+
+4. Hold the keys down until the computer restarts and you hear the startup sound for the second time.+
+5. Release the keys.+
Now then if the iMac is not booting from all 8GB of RAM, then there is a compatibility problem with the Crucial RAM and you need to contact Crucial and tell them that there Ram is not working with your Factory RAM.
Why would you only want RAM in the bottom slots, I thought the idea here was to upgrade from 4 to 8GB?
The article clearly states that the iMac will not boot with only 1 module in a bottom slot.
http://support.apple.com/kb/HT3918

Secondary monitor on 20"iMac, How to set portrait orientation when running

How do you set the display rotation in Windows XP?
I have a secondary monitor (wall-mounted at 90 degrees to normal) that OS X handles just fine (the display preference window provides a rotate function). However, when running Windows XP, the secondary monitor is still available, but I can not find a setting that will rotate the display. I downloaded the Apple Boot Camp ATI driver from AMD's site and the driver version went from 8.39 to 8.43. Still no visible way to rotate the secondary display. I then upgraded Boot Camp to 2.1 after which the ATI driver version went to 8.45. Still no rotate functionality.
I have tried using the ALT-OPTION-ARROW key with no success (recommended on some obscure Windows XP forum). I also downloaded the Apple Boot Camp Crystal Control Center from the AMD site, but it would not execute after installation (this upon yet another obscure recommendation).
I also have Windows XP on my MacBook. It uses an NVIDIA driver and it will allow display rotation.
Any help or advice is appreciated.

Updating my original post:
I have resolved the issue. The ATI Catalyst Control Center app (I meant Catalyst, not Crystal in my original post) needs Microsoft's .NET Framework 2.0, which was not included in my original Windows XP installation.
After downloading and installing the .NET Framework 2.0 package and reinstalling the Catalyst Control Center app, I am now able to rotate the secondary monitor display to the portrait orientation.
I use the secondary monitor primarily viewing on-line documentation while working with an application on the primary screen. The portrait orientation provides a much better environment for reading documentation as I can view 2+ pages at the same time.

Dual monitor issue with 10.8 and Windows 7 (bootcamp)

I've a read a lot of threads here about people having nightmare-ish problems after upgrading. Thankfully, this isn't one of them, just a frustration that I'd like advice on.
My system: 2010 13" MBP, 2.4GHz Intel Core 2 Duo, 8GB RAM, 320GB HD. Work setup has external 17" Dell Widescreen monitor connected with VGA to miniDisplay adapter. Home theater setup has 23" Dell monitor connected with HDMI to miniDisplay cable.
I upgraded from 10.6.8 to 10.8, as I like to stay up to date and it seemed ML fixed many of the Lion issues. After finding out Front Row is completely gone I just about reverted (my laptop doubles as my home theater control). I found XBMC, and it works, sort of (anyone with news on whether Front Row will be returned to us, let me know!).
Enough babbling, my issue:
When I switch from bootcamp windows 7 back to OS X, my second monitor's resolution is all screwed up (very low) and the dock and menu bar are BOTH on the second (Dell 17") screen, though it's not in a mirror mode.
Usually the dock is on the laptop screen, and the menu bar is on the second.
All I have to do is unplug the miniDisplay port and plug it back in, but is there a setting I'm missing to keep me from having to do this? Also, I've never used Windows at home, so I've never had to switch with the 23 inch monitor connected. Don't really want to try as that system is working quite well right now.
Thanks!
-Rob

It's NVidia GeForce 320M.
Just checked the drivers page and the Mac side only lists up to 10.6.8
Should I assume that the update needs to be on the Windows 7 side? At one point last November I tried to update on the Windows side and it caused all sorts of **** on my system causing me to have to reinstall both OS X and 7.
May be worth another try?
-Rob

Multi-monitor issue with CS4?

Hi; I'm running a Mac with the following specs:
3 x 30" ACD
MacPro 2,8 Ghz Quad
2x ATI Radon 2600 XT graphics cards (2 screens attached to 1 card; 1 screen to the other card)
I've encountered after the switch from CS3 to CS4 the following issue:
Whenever I try to use the new Bridge Review function using one of the the screens sharing one graphics card I just get a grey screen.
If I move the bridge window to the solely attached screen it works.
Is that an issue of CS4 or is just the throughput of the second graCard providing 2 monitors not sufficient.
Thanks t.

T,
There are known issues with using more than one graphics card which Apple has not truly resolved. You may want to browse some of the threads in the Adobe Photoshop Macintosh forum.
In addition, you should know that Photoshop and Bridge cannot really take advantage of more than one graphic card.
http://forums.adobe.com/message/1540485#1540485
This bit of information in relation to GPU and OpenGL features and
limitations in Photoshop CS4 had totally escaped me until now. Though
it doesn't affect my setup, it might be of interest to others who may
have missed it too.
Excerpt from
http://www.adobe.com/go/kb404898
Q. Does Photoshop take advantage of dual-GPU display cards?
A. Not at this time.
Q. Why can't Photoshop take advantage of more than one display card?
A. When you move an image window between two monitors that are
each on a separate display card, the GPU attached to the second monitor
does not have access to the data necessary to accelerate drawing. The
SLI and Crossfire technologies that use more than one GPU to speed up
full-screen games will not work with Photoshop, because their use is
limited by design to accelerate only full-screen games.

Issues with screensaver after playing video in iTunes

I've recently started having an issue with my screensaver not turining itself on if i pause videos played in iTunes (fullscreen), and after escaping fullscreen view and pausing video the screensaver won't turn itself on. At all, not until I restart my iMac.
The iMac is completely up to date (OS X 10.7.2), bought mid-2011, came with Lion. I just got the iMac back from repair service, it should be working fine. Why is this happening?

My guess is that you have an Nvidia Nforce SATA controller, and are affected by a known bug in the Nvidia driver. Apple mention it briefly at the bottom of this document. HP have posted what appears to be a standard Microsoft SATA driver here to work around the problem until Nvidia releases an updated driver. Since it appears to be a standard driver, you may be able to install it on a non-HP system too.

Multi monitor issues with resolution(?)

At a customer I have got a really strange and annoying problem. The customer has got a Hyper-V VM with 2012 R2 Server as a RDS server aka Terminal Server.
One user has got issues with his multi monitor setup. The connection settings seems to be OK. It is set to full screen and the checkbox for the multi monitor configuration is enabled. Theoretically this works because the user sees a correct setup with one
primary display and one secondary display. The settings itself are correct.
1. Primary display: 1680*1050
2. Secondary display: 27" 1920*1080
The display settings on the client are nearly the same except that the numbers of the two monitors are different (those numbers you get when you click identify at the resolution change window). On the Windows 7 client the primary display
number 2 and the 27" has got the number 1. On the Terminal Server the primary display has got the number 1 and the 27" display has got the number 2. But the corresponding resolution at the display number is correct.
Now the problem. Everything seems fine, the desktop is expended. But when the user is "touching" the top or bottom edge of the screen the display is scrolling (in full screen) - like in a 3D game scrolling over a map. The user told me that
both screens are scrolling equally at the same time. I am not sure but the user told me that if he is going to the bottom the CLIENT task bar appears. Changing the task bar of the client to fixed the user told me that the task bar will always show up. - Strange
that CTRL + ALT + BREAK does not work.
I tried to press CTRL + ALT + BREAK twice, changing the resolution to a fixed value and back to full screen again, changing the primary display to the new 27" monitor, adding smart sizing:i:1 to rdp file and upgrading the Intel HD
4600 laptop graphic drivers (must be downloaded from Lenovo :/). NOTHING helped :(.
But this strange behavior does not exist on the client. Opening two programs (simple notepad e.g.) on each display and maximize them and moving the mouse the screen borders won't show this problem. It only exist on the remote session.
Now the "funny" part. If I connect with Team Viewer to the client the problem disappears as long as I am connected. If I disconnect the problem shows up again.

Hi,
This is most likely a problem with the local machine's graphics driver and monitor configuration. I would suggest trying different things like removing and re-installing the display adapter and its drivers, removing the second monitor/restarting/adding
the second monitor back, adjusting the multi-monitor settings in display properties (changing between extending the desktop to the second monitor and not), undocking/restarting/docking, changing between different modes using Fn key on laptop (if laptop), etc.
The behavior under Team Viewer is likely because the graphics configuration is different when the driver is active.
I wish I could give you more precise instructions on how to resolve the issue. I have seen this behavior (panning desktop, multi-monitor config not exactly right) probably 3 times over the last 5 years, always with a laptop, and I had to "play"
with the settings before it finally went back to normal. The instances I have seen it occur did not involve Remote Desktop specifically.
-TP

Secondary Monitor can't rotate after 10.7.5 update

Hi, I have a Dell U2311H secondary monitor which I have been using in 90 degree (portrait) rotation on my 27" 2.7GHz i5 iMac 2011 and 13" MBA 2011. I updated both to OSX 10.7.5 today and after the update the Dell monitor no longer rotate when connected to my iMac (still works perfectly on my MBA)
the screen is unrotated and fill the top half (top in relation to my already physically rotated monitor) of the screen only. when i open display preference, the window on the Dell screen only have refresh rate option on the right, no "rotate" option (which I can still see when i plug the Dell back into my MBA). on the left there is 1080x1920 and 960x1280 resolutions. I tried both resolutions but both also doesn't give me the rotate option...
what should I do to get it rotate properly? the same monitor is working fine connected to my MBA and I updated both my iMac and MBA to 10.7.5 on the same day... thx!

Sounds like this is the same problem as in https://discussions.apple.com/thread/4354987
- the short answer is, 10.7.5 breaks monitor rotation for some monitors. There are some open bug reports. In the interim, you're screwed. (Me too, if that helps)

Anyone else having issues with iMac built-in microphone?

My mom's brand new 24" iMac (running the latest version of Leopard) keeps having issues with the built-in microphone going dead. It can be resurrected with a restart and PRAM reset (command-option-P-R), but it is kind of annoying to have to do this every time she wants to Skype or iChat. Any ideas what might be causing this? She runs a fairly clean system with few peripherals or third-party software (except occasionally an external FW drive for backups, a Blu-Ray burner [not connected at the same time], and Toast). Thanks.

Even on restart with nothing else running, she can go into the System Preferences/Sound/Input and try testing the microphone and it is DOA. We did go through all of the prefs in Skype and they are all set right, she does try the Sound Test call in Skype to see if her audio is working and that is usually the indication that something is not right. Her broadband connection varies too much to have iChat work reliably if at all. She will be installing Snow Leopard soon, and I read that iChat only requires 300kbps bandwidth as opposed to 900kbps under Leopard so there is a possibility that there will be an alternative to Skype in the near future.
All her updates are installed. Repairing permissions was done less than a month ago, but it is worth a try again. Also will have her fire up Activity Monitor to see if there is anything else taxing the CPU. I am 2000 miles away so it is sometimes hard to maintain this machine properly from a distance.
Thanks for your input in trying to solve this mystery. BTW what do you think of using an external dedicated microphone? Kind of defeats the purpose/beauty of having it built-in with the iMac...

Secondary monitor does not work after OS X install

My secondary monitor does not work well after OS X install. The image on my secondary monitor is different even the screen svaer image is different and the mouse can not be seen.

Try the easy thing first - NVRAM reset:
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
If that does not work, post back with more info, including the version of Mac OS you are running. How is the external monitor connected, did it ever work, and from what OS X to what was the "OS X install" in your title?

Secondary monitor issues with iMac after 10.6.5 upgrade

Similar Messages

Maybe you are looking for