30in Cinema Display Strange Behavior

I have an 2x2.66GHz running OS 10.5.6 with a NVIDIA GeForce 7300 GT
Recently when I start my computer at the bottom of the dock it would look like an whiteout from an old TV, just black and white small pixels. After I resized the dock it would kind fix itself. After that it started happening in other areas of the monitor, usually in the top left.
Yesterday when I started up after I logged in the entire monitor looked like pixelated zebra stripes, I couldn't see anything and I had for force shutdown, unplugged everything, checked connections and then restarted and it came up ok. Today I stared up and it did it again, this time there was a large blank white space in the middle and then large blue boxes on the top and bottom of the monitor, had to manual restart again etc, etc.
What the heck is going on? Is my monitor just shot? it's a little over a year old and no longer covered under apple care. Anyone seen this or had it happen?

I had the same problem with the zebra stripes. My computer was only 3 weeks old and my 30 inch about a month. One day my screen started turning blurry, freeze, and the zebra stripes. I brought it to the Apple store and they said the problem was my video card. Once my video card was replaced the problem stopped.

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What cable do I need to connect a 30in Cinema Display to a 2013 Mac Pro

what cable do I need to connect a 30in Cinema Display to a 2013 Mac Pro

No.
<http://store.apple.com/us/product/MB571Z/A/mini-displayport-to-dual-link-dvi-ada pter>

How to deal with hum/interference - 30in Cinema display?

Hi, I hope someone can help with this!
I have a 30inch Cinema display, which has started to create a hum through my powered speakers (Genelec 8040's). I have tried plugging the (mains powered) speakers into a separate mains socket, moving them about, as far as is practical, and even sticking a sheet of tinfoil between the back of them , but no luck.
The hum comes on at very low volume levels, and is persistent, i.e. if I am playing a track in iTunes, and there is a quite bit in the song, I get 'errrrrrrrrrrrrrrrrrrrrrrrrrrrrrr' in the background.
Now the weird thing is that I was playing a game, and for some reason there was no hum, which suggests it may be fixable via software/settings?
I'm a bit of a newbie at this stuff (as the tinfoil experement, may suggest!), so I'd really appreciate any advice!
TIA,
Steve

Thanks for the feedback. I thought it was the monitor, as the hum is only present when it is on. It may be a combination of the Mac Pro & the monitor though... Mmmmm...
I think I may have fixed it, well improved the situation, I'll say what I did in case anybody else has the same issue, or has a better fix.
I tried unplugging the mini jack audio out, which goes from the mac, to a mixing desk, to the powered Genelec audio monitors. When I did this the hum stopped, which I think means that the issue is a poorly shielded mini jack to phono cable, as if it was direct interference from the monitor to the speakers, it should (in theory) be present regardless of whether the audio is connected into the mac or not.
I have moved the cable about, and the hum is reduced, so I think I have found the problem.
Hopefully this will be of use if anybody else has the same issue!

Strange behavior of the Macbook pro display

Hi to all
I'm using my MacBook pro, and notice some strange behavior after open several windows or applications, I don't know how to explain, so here is a photo:
http://www.flickr.com/photos/86155326@N00/
I have tried: go back to 10.4.6 / create a new account / Hardware test... and Nothing.
Any suggestions?
Pedro

I am having the exact same problem(and no one is replying to my post either), I read in another post of someone who had a somewhat similar issue and someone commented that it was bad VRAM and warranted the logic board to be replaced. I'm hoping this is not the case, or at least hoping the problem does not get worse because I am in school and can't be without this computer for 2 weeks while it gets repaired..I'm hoping I can last til the holidays...
pictures of my problem:
http://www.rpi.edu/~neala/pics/display/Messed%20up%20desktop.png
http://www.rpi.edu/~neala/pics/display/Picture%204.png
Sometimes I can make it go away by moving windows, and sometimes that makes it worse... this computer is only 100 days old...come on apple..help us out!

Apple 23" Cinema Display - very odd behavior, please help.

After being away for the weekend I powered up my G5 and was horrified to find that the monitor was not powering up. After searching through the Apple support website on another computer, I unplugged everything that was plugged into the back of the monitor, and I also unplugged the USB and firewire cables going from the monitor to the G5. And guess what? The monitor came on! When I tried powering down, plugging everything back in again, and powering up, the monitor once again would not power up.
What gives? I didn't make any changes to any of the settings before I left for the weekend. And what's even weirder is that the LED light goes off when the monitor comes on and then comes back on when I shut everything down.
Do I have some bad cables or something?

Hi-
I can suggest trying your troubleshooting one more time, only this time, attach your external connections one at a time, testing with each new connection. If one of the peripheral connections is the culprit, you should find it in this manner.
Consider the possibility that a connection was jiggled loose in the reattachment process........Check that the power brick connection is secure.
USB and Firewire are hot swappable, so, powering down should not be necessary to make the connections.
The LED shutting off during display operation is normal. The LED acts as a stand by indicator, and also flashes error codes when trouble is detected within.
G4AGP(450)Sawtooth, 2ghz PowerLogix, 2gbRAM, 300gbSATA+160gb HD, ATI Radeon 9800 Mac OS X (10.4.8) Pioneer DVR-109, LaCie 160gb, 23"Cinema Display, Ratoc USB2.0, Nikon Coolscan

Help! Strange Problem with 23" Apple Cinema Display and Wireless Internet

For some reason, Safari runs much much slower on my housemates new 23" Apple Cinema Display than just on his new Macbook. He is running Tiger. We use Airport Extreme for house-wide wireless, and he has an Airport Express to connect to his printer. Here is what he wrote:
"Last night, I was watching videos on ABC.com --- not a problem to watch on my laptop screen (new Macbook) - very fast. Then, after dinner, I plugged in my external screen (Apple Cinema Display), and it was so slow and wouldn't load. I unplugged the screen, and it was lighting fast again, so I watched the videos on my laptop screen. This morning, I was plugged into the external monitor and the Internet was slow to check my email. I unplugged the screen, and it's lightning fast now on my laptop screen.
Does this make any sense??? Why would my external monitor affect the Internet speed? "

I am having a similar problem as well. When I attach my 23" cinema display to my MacBook core 2 duo, my connection to the internet immediately stops working. I have tested this several times and it happens every time I connect the Cinema Display to my MacBook. When I disconnect the Cinema Display, my internet connection works perfectly again. I'm stumped as to why this happens.
I have tried several different searches on the forums, but have found no other threads besides this one. I'm I won't have to suck it up and pay the $50 for the call to AppleCare support.

Older 20-inch Cinema Display powering on and off repeatedly

I recently inherited an older (clear) 20-inch Cinema Display that I'm trying to use with my G5 dual 2.3 running 10.4.8. After purchasing the expensive DVI to ADC adapter and hooking it up, everything worked fine for about maybe 20 minutes or so until the display started to cycle on and off every two or three seconds (off for a couple seconds, then on for a couple seconds, repeat endlessly). This is accompanied by the power button glowing on and then off so it seems as if the power is cycling on and off by itself.
Any ideas? At first I suspected the ADC/DVI adapter which got really hot when in use, but letting it cool down had no effect on the monitor's behavior. My clunky old 19" CRT display works with no problems, so it's not the video card. The Cinema Display is my old monitor from work, and never had any performance issues, although it's been in storage for almost a year.
PowerMac G5 Dual 2.3 GHz Mac OS X (10.4.8)

Same thing is happening to me. I have the 20" Cinema Display (clear with ADC).
Last night I was in another room and all of a sudden I heard my G4 (Digital Audio) restart. I thought I was hearing things. Then about 3 minutes later I heard it again. I thought my daughter was up working on the computer or something. So I went up and there was no one around, but the computer kept restarting every 1 or two minutes. It was very strange – sometimes it it would go to sleep in the middle of the boot process.
I was able to stop this process eventually by disabling the display power button in the Energy Saver and Displays prefs panels. But I would like this feature to be functional since it makes my setup easier to use for my kids.

27 LED Cinema Display Audio and Brightness when powering MacBook Pro

When my 27 LED Cinema Display is powering my (or another) 2009 13" MacBook Pro, I have experienced three issues:
1. The dropped audio problem other users have mentioned. Shutdown, then disconnect power/usb/displayport, then wait ~15s, then reconnect and reboot temporarily fixes the problem.
2. I also have the sluggish keyboard behavior when adjusting the volume that others have mentioned.
3. I have experienced shifts in display brightness which are obvious when the display is dimmed. I have disabled the ambient light sensor as well as any interfering power management or energy saver settings. Opening apps, scrolling and other normal activities seem to aggravate this behavior.
This last strange behavior inspired me to try using a power adapter for the MacBook Pro instead of display's laptop power connector. *Doing so seems to have resolved all three issues.*
It seems that this may indicate an underlying problem with the display's power supply. Can anyone confirm?

mmayo wrote:
I am having the same issues & with a 1 day old display. I am using a 15" MBP. The screen is killing me when it dims down when no lights are on. I didn't notice the issue when the screen is brighter with the lights on. Anyone know if this is a hardware or software issue? I'd like to utilize the ambient light sensor but not if its going to make my screen flicker when it is dim....
(1) I have never had any deaths associated with my screen, but on rare occasions my display's brightness will flicker when I manually adjust the brightness. The fix I have found for this is to increase the brightness one more setting or decrease it one more setting. Changing the screen from full dim to full bright and then setting the brightness I want sometimes helps, too.
(2) You can check whether this software update has been applied to your 27-inch:
http://support.apple.com/kb/HT4293
(3) Your Apple Service Provider could tell you whether your problem is related to hardware or software.
Mac Pro Quad Core (Early 2009) 2.93Ghz Mac OS X (10.6.4); MacBook Pro (13 inch, Mid 2009) 2.26GHz (10.6.4)
LED Cinema Display; G4 PowerBook 1.67GHz (10.4.11); iBookSE 366MHz (10.3.9); External iSight; iPod touch 4.1

MacBook Pro wakes up when unplugging usb from cinema display

Hi all,
I have a 30" cinema display at work and a 23" at home which I use with my macbook pro. At work, I use a usb keyboard which stays plugged into the monitor. At home, I have a wireless keyboard and a usb printer plugged into the monitor. Thus in both cases, I plug the usb cable from the display into my laptop. I typically leave the MBP open so as to have the main display and the cinema display at the same time. When I leave home or work, I close to MBP to put it to sleep. However, upon unplugging the display and especially its usb cable, the laptop invariably wakes up, which is annoying.
I tried leaving the MPB closed and putting it to sleep with the display's on/off button. Same behavior.
Is there a setting to prevent usb 'signals' from waking up the computer? Should I proceed differently?
Any advice would be greatly appreciated. Thanks in advance.

I know this question is answered, but I didn't want to create another thread to discuss the same topic.
I think this issue is rooted in the Cinema Display being attached to port 3 of it's own internal hub. This is to allow the display dimming, the power button that controls the sleep/wake of the laptop, etc. I just got my 30" cinema display a week or two ago, and before that was using an HP IPS LCD panel (24") that also had an integrated USB hub. I have the same devices attached too --USB hard drive for time machine, and keyboard (mighty mouse plugged in to keyboard). When unplugging the cable to the HP monitor's hub, the macbook would not wake up. Just with the Apple display.
The problem with the hack/bandaid/workaround suggested is that to unplug the USB cable before sleeping the laptop, I need to open disk utility and eject the external drive first, else the system will complain. When the laptop goes to sleep, it runs a script (that I wrote) to eject the drive before sleeping, thus no error messages.
Apple really needs to work on making "docking" work right. Until then, I'm using a Belkin USB hub which doesn't wake up the mac when unplugging it.

MacBook Pro scrolling choppy after disconnecting from Cinema Display

Hi, I keep my 2.5 GHz 4GB RAM MBP in clamshell mode most of the time, connected to a 30-inch Cinema Display. When I pick it up and open it, scrolling in every application is super choppy and slow, and won't correct unless I reboot the computer. This is aggravating. Anyone have a fix? Thanks in advance!

Sometimes I experience the same after disconnecting my 24" display (in seldom cases, the mouse cursor is not painted correctly, as well).
Can you check - when it happens - if in System Profiler > Hardware > Graphic > Quartz Extreme is listed as 'supported'. I found it to be 'not supported' when the scrolling and display behaves strangly. Also the Menu Bar is not transparent any more.
Next to rebooting, logout and login again fixed the issue for me. But I am also looking for a better fix/explanation.
marcus

Macbook Pro dark screen after disconnecting from Cinema Display

Dear all,
the issue I am having:
- after disconnecting from Cinema display (having first put my Macbook Pro in "sleep" mode) I just ca't make the Macbook pro scren show anything....black display
- but is it really asleep? NO!!! It just STILL believes it's connected to the Cinema Display
That's what I though was happening, so I thought: "if I now plug in the thunderbolt-to-VGA dongle that I use for the videoprojector then the screen might come back... and.... Voilá! It comes back, BUT starts flickering until in the end it just dissappears....
I can reproduce the error all the time. Worse than that: a reboot does not help at all.
Looks like there is an internal hardware switch that must be left "engaged" and then the Mac just believes it is connected to an External screen and sends the signal though the thuderbolt port instead of through the screen!!!
WEIRD error/bug or whatever!!
I have no idea how to make this reach the Apple guys.... I tried to report a Bug but they asked me to join in as Apple developer which I just can't do (for working issues).
Can anyone tell me if they have had this problem, and whether Apple is taking care of it?
(this reminds me of an issue with an internal switch with the headphones in my old MacBook Pro.... after disconnecting the headphones, the internal switch was not being disengaged, so sound would NEVER come out as it was being sent to the headphones instead of to the speakers... Same problem here but with the Image??? :-((( )
Thanks a lot.
BTW: here go my Mac characteristics:
Mac OSX 10.8.2
Model Name:          MacBook Pro
Model Identifier:          MacBookPro10,1
Processor Name:          Intel Core i7
Processor Speed:          2.6 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          6 MB
Memory:          8 GB
Boot ROM Version:          MBP101.00EE.B02
SMC Version (system):          2.3f32
Intel HD Graphics 4000:
Chipset Model:          Intel HD Graphics 4000
Type:          GPU
Bus:          Built-In
VRAM (Total):          512 MB
Vendor:          Intel (0x8086)
Device ID:          0x0166
Revision ID:          0x0009
gMux Version:          3.2.19 [3.2.8]
MacBook Pro:
Vendor Name:          Apple, Inc.
Device Name:          Macintosh
UID:          0x0001000D11C0EF80
Firmware Version:          11.1
Port:
Status:          Connected
Link Status:          2
Link Controller Firmware Version:          0.11.4
Port:
Status:          No devices connected
Link Status:          7
Link Controller Firmware Version:          0.11.4

Sometimes I experience the same after disconnecting my 24" display (in seldom cases, the mouse cursor is not painted correctly, as well).
Can you check - when it happens - if in System Profiler > Hardware > Graphic > Quartz Extreme is listed as 'supported'. I found it to be 'not supported' when the scrolling and display behaves strangly. Also the Menu Bar is not transparent any more.
Next to rebooting, logout and login again fixed the issue for me. But I am also looking for a better fix/explanation.
marcus

Mac Mini + A1038 Cinema Display does not work

Hi,
I have a 2009 model Mac Mini with mini-dvi and mini-display port's on the rear. I can connect any of my DVI based monitors to the mac mini using either the mini-dvi to dvi cable or the mini-displayport to dvi cable. All monitors except for the A1038 model Apple Cinema Display.
The cinema display works with 3 other computers with DVI ports, turns right on and is detected right away. When plugged into the mini it does nothing. Sometimes I can get it to work with the mini-dvi to dvi adapter but that is sporadic.
This is the same behavior with a 2009 model mac book pro and macbook. Using the mini-displayport to dvi cable the cinema display does not work but 3 other monitors do.
So my question is, why does apple hardware only work with non-apple hardware?

Is the A1038 the old, plastic Cinema Display that doesn't have a power cord or power supply? It only has a video cable with the special ADC on it? If that's the case, it needs this to run from a newer Mac:
http://store.apple.com/us/product/M8661LL/B

New Mac Mini and Apple Cinema Display

I have just upgraded my Mac (G5 PowerMac) to a new Mac Mini. I am still using my Apple Cinema display - but I cannot not play all the purchased movies that I have on iTunes now...????

Greg,
Are these movies HD? If they are, you might be having a problem with HDCP which is copy protection that won't let you view movies if all of your equipment is not HDCP compliant, which probably is your Cinema display. I also have a late 2012 Mac mini with an older Apple 20" Cinema display and cannot watch HD itunes movies. You will have to watch in standard definition. Of course you might have a different problem, but your question seemed similar with my situation. What is strange is that you were able to watch from your G5 Powermac. Maybe the power PC chip allowed viewing as opposed to intel chips, which I think intel created HDCP. Somebody on these boards probably has better answers then me ;-)
Rob

Strange behavior when "trying" to burn a disk.

At least I think this is strange behavior, following the instructions in the help viewer, topic "Backing up your music to a CD or DVD." One thing for sure, it's not burning a disc and it ain't telling me why.
I select the playlist and click "Burn Disc"
Requests a blank disc. I insert one.
Message "checking media"
after about a minute, the disc ejects
Message "checking media" displays another 30 seconds
No other messages displayed.
What the ??? Shouldn't it at least display an error message??
Super-Drive information..... from System Profiler
MATSHITA DVD-R UJ-845C:
Firmware Revision: DPP9
Interconnect: ATAPI
Burn Support: Yes (Apple Shipped/Supported)
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
DVD-Write: -R, -RW, +R, +RW
Burn Underrun Protection CD: Yes
Burn Underrun Protection DVD: Yes
Write Strategies: CD-TAO, CD-SAO, DVD-DAO
Media: No
Using Sony DVD+R discs.
Mac Mini Mac OS X (10.4.8)

Whoops, sorry, this was while burning a playlist.
I've also tried some Pleomax CD disks (Samsung), with no luck. I've tried burning directly from iTunes, and from Toast 7.
Of the types I've tried, the Sony DVD's have been the best for me. Haven't tried many types though. Maybe I can get disks one at a time until I find a brand my burner likes.
Still, isn't it strange that there is NO error message? It just quits?
Mac Mini Mac OS X (10.4.8)

MSN Messenger uses wrong inbuilt webcam for video chat on triple screen set up. It uses a cinema display webcam not the iMac webcam.

For some strange reason if i attach my 2 apple cinema displays to my iMac to make a triple screen set up msn messenger video chat does work but it uses the apple cinema display inbuilt webcam and not the iMac webcam. Its annoying as i have to turn sideways to get into the video call view.
So i have a set up like this: an apple cinema display thunderbolt, then in the middle an iMac new then to the right of the iMac another apple thunderbolt cinema display. WWhen i use MSN messenger to make a video call it uses the inbuilt webcam on the far right apple thunderbolt cinema display and not the inbuilt webcam in the iMac in front of me, its annoying any ideas please.
If i unplug both side cinema displays MSN messenger uses the inbuilt camera on the iMac like normal but when i use extra screens it uses the webcam built into those and not the iMacs webcam.

I would try with another client like skype or something
and if it's only msn messanger which have the problem it may
be more of a question for ms's forum?

30in Cinema Display Strange Behavior

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