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All replies
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Helpful answers
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Jul 21, 2012 6:03 AM in response to quattro4711by quattro4711,just uploaded a second video, related to my posting above:
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Sep 12, 2013 6:23 PM in response to Tim Townby Jason Warth,Thank you for the posts everyone. Tim... your idea came to my rescue!
I purchased my 30" ACD from Apple as a refurbished unit. Two weeks ago, the display wouldn't turn on. I took it to the Apple Store—and they sent it to the repair depot. The people at the repair depot couldn't replicate the problem (strangely), though I'm told that they ran several tests anyway. Today, I received my ACD back from Apple, plugged it in, and.... drumroll... it still wasn't working (after 2 full weeks of "service." Maddening.
After finding this thread (which I read while holding my finger on the ACD's power "button", so my display would stay on—I came up with my own solution. Before running downstairs to look for foil, I grabbed a light magnet (it's from a toy set of magnetic spheres and cylinders... maybe called Magnetix, or someting like that... I can't recall at the moment).
Anyway, it works! My display stays on as long as the magnet is stuck to the power "button." Cheers.
-Jason
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Jan 10, 2014 7:19 AM in response to Roland Leeby mconductor,I've had the same problem for a year. I would unplug it and wait, plug it back in and it would sometimes work.
Your suggestion:
"System Preferences>Displays>Options
and selected 'Does Nothing' for Display Power Button and Check the box for 'Disable Brightness Buttons'."
worked perfectly. THANKS!!!!
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Mar 31, 2014 7:02 AM in response to mconductorby DownstreamPDX,I ran into the same issue as many have noted, 30" ACD flicks off and on after being connected for several minutes.
I had the ACD logic board replaced and for a short time (2-3 days) the flickering did not happen. But once again on the 3rd or 4th day, it started.
Using the System Preferences - Displays - Options - Does Nothing and Disable Brightnetss box check absolutely corrected the issue for me.
Excellent call, thanks.
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Apr 2, 2014 12:19 PM in response to DownstreamPDXby Gary Ludlum,My problem didn't happen till I upgraded the RAM. I don't think that was the issue.
The issue may have been that I had to unplug everything to get to the tower to install the RAM.
I first noticed the problem when I woke up inthe middle of the night and noticed that the monitor was on. I was certain that I had turned it off, with the button. Turned it off again, went back to bed. Next morning it was back on. It did kept doing that, so I just set the Energy setting to switch it off after 5 minutes. That seemed to be the answer.
Then the on/off business started. I found that if I held my finger on the button, it would stay on, but then I had to use my left hand for everything. Sorry lefties, no disrepect.
I stumbled onto this discussion and could not for the llife of me figure what you were all talking about with the Options in the Display preferences. Someone had said somehitng about having a USB plugged into the monitor, which I did have before the RAM install. Trying it now, the ports didn't work.
DUH! I forget to plug the monitor's USB cord into the computer. Now the ports work AND the Options setting is now there. Surprise.
Right now the monitor is working and I can use my right hand. I'll give it time and report back.
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Jul 8, 2014 10:28 PM in response to Jason Warthby MarcDigital,You are my savior! lmao
The magnet did the trick! Taped a magnet over the power button, and boom, no more flickering, so happy right now!
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Oct 21, 2014 5:09 PM in response to Roland Leeby coalxman,I have two new 30 inch thunderbolts and both have been flickering strangely , every hour or so, I took you suggestion and found the auto brightness was on and have not had any problems since,
THANK YOU I was desperate to fix this.
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Dec 24, 2014 11:19 AM in response to bradley8424by jacksonkr,SOLUTION FOLLOWED BY A SHORT STORY
STORY
I fly my monitor all over the nation and it was last working in Utah. After a quick trip to Seattle for the holidays, for which I only brought my 2010 15" mpb, I came back to Utah to find that my 30" was no longer responsive; No display, no power light, but my laptop still acted like a display was connected. After some online research I decided to spend $30 on ebay for a new control board. While waiting for the control board I kept tinkering. When the monitor is working normally I choose to use the MDP + USB connector in order to utilize the maximum resolution allowed (2560x1600). I tried using the connector that only supplies the MDP connection, which in turn only supports (1280x800?). At that point I learned that whenever the USB connection was made the monitor would shut up. However, this is when I came upon a solution that worked.
SOLUTION
While connected to only the stand-alone Apple DVI to MDP connector I would plug the USB of the 30" display to the MDP to Dual-Link adapter and then plug the dual link USB into my MBP. This usually stops the monitor from working but after a few tries the monitor stayed lit in 1280x800. At that point I left the USB connection and switched the monitor connection from the single connection DVI2MDP over to the dual link adapter and viola.
NOTE
I recently read that when you have to plug-unplug the monitor numerous times before it "magically works" is because you have capacitors going bad and that plugging/unplugging will eventually charge them to the point that a connection is made. According to this same notion, it pretty much means your monitor's capacitors are on their way to "meet the great capacitor in the sky".
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Jul 7, 2015 5:07 PM in response to bradley8424by Balt_Dax,I had the same problem with a 2013 MBP running OS X Yosemite connected to a 2004 30-inch ACD. After ~ 10 minutes, the display would flicker on and off with the lid opened or closed.
I went to System Preferences --> Displays --> Options and checked "Does nothing" as well as "Disable brightness buttons." This suggestion was posted on another forum. My screen hasn't flickered for nearly 4 hours.
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Nov 5, 2015 8:32 AM in response to jacksonkrby jacksonkr,After using my solution a number of times I've started to realize that the Apple adapter (used to get the full resolution from the monitor) seems like it's the faulty piece of equipment in the equation. Here's why:
- Using a standard mini display port to DVI connector the monitor works fine (results in lower res display)
- Using a HDMI to DVI adapter lets me use the monitor as a tv
BUT
- Using the mini display port (or thunderbolt) + USB to DVI + USB adapter often results in no image
My solution is just unplugging / plugging cables in until the monitor works again :/
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Dec 1, 2015 8:50 AM in response to bradley8424by bearguy9,It's an old thread but I have the problem and I have success in stopping it for long period of time. Read on.
The situation is ELECTRICAL in nature and has a bit of voodoo in the silliness of the solutions, but who cares, I've stopped the problem. Once I stopped it for over 1 year before having to do it again. Coming up with these solutions took 2 days of experimentation between 3 workstations all with silver MacPros 2009/2010, and the 2 Apple Cinema Displays, 1 is 30 inch DVI, the other is the smaller one, all hook ups identical, and switching them off back and forth for testing.
firstly - take the laptop conversations all off the table and off this thread, they cannot be related.
- unplug every single thing from every single port and power source and start fresh. If you count all plugins to brick etc, there are about 6.
- you MUST MUST change the way power is drawn from your wall or home outlet. This means a direct plugin to the wall - NO USE OF POWER STRIPS or surge protectors if you can help it. (you either want a true solution or you don't).
- Go buy a battery backup if you absolutely must release multiple outlets around the situation. You should plugin your MACPRO to the Battery backup, and the MONITOR also to backup or at least the surge protection choices (I mean ON THE BATTERY BACKUP not any strips! Invest in a real one brand APS recommended).
- NO splitters, no sharing of power source with peripheral devices, no multi outlet strips
- experiment with switching the ports to sources until you find a combo that works
- find colored tape and mark all the hookups to match so next time you recreate the solution that worked.
- Don't use the side power button at all. It's related somehow. Turning it off in system preferences has no effect. Mine is on, I just try never to bump into it.
- Yes, people who mention that the brightness icon goes crazy during these events is absolutely true.
- Yes, Apple has never cared about this even with Apple Care, so don't waste your time lugging everything to an appointment. They won't replace.
- Keep cables still, keep pets away from them, keep them NEVER MOVING if you can help it. My cat thinks the light on a surge protector is a fun button to push so it's taped in place (although I do NOT USE any of those strips for this monitor or computer pairing)
My opinion is that even the slightest variation or bump in the way electricity flows to the monitor, or through the mac causes the issue. After 1 full year of no issues, I brought my workstation gently to a trade show, had no problems, got back and forgot what was plugged in where, had no problems for 4 days, then I started using the side power switch because ***the sleep feature in the drop down menu takes nearly 2 minutes to actually "go to sleep" otherwise. The monitor went absolutely insane on one accidental use of the power button and I went through all the troubleshooting steps above multiple times until I found a situation that stabilized everything.
Also - I rarely can turn the workstation off because another issue with this monitor is after being off fore more than 24 hours, the first startup will display what appears to be a really insane screen of rainbow lines and static that move. It's scary, it looks like your monitor has shorted out, and the only way out is to do the dreaded, ill advised, pull the plug out of the wall and restart. Sometimes this method takes 3 restarts, and all peripherals must be pulled out of all ports then put back in.
The monitor is gorgeous, and gets attention wherever I go, but these problems have existed for 5 years. I say a prayer every time I restart that the dreaded "day of doom" doesn't come.
I was here today because everything almost didn't work and while I was typing, it mysteriously stopped.
Good luck to all. I hope something here helps. Like I said, I got a year out of it once.