• 3.0 out of 5 stars

    Poorly engineered, but flicker issue solved!

    • Written by from BELMONT

    This device is poorly engineered; as with many other reviewers, for me it flips out regularly, flickering, losing sync, showing rainbow snow, etc. However after dealing with this for a long period of time, I've finally found a reliable solution.

    The device is unable to get enough power from the macbook pro USB port. So unplug the usb cord only, and plug it into an external power supply that has some good current. I used a 2-amp / 10 watt USB charger. Obviously, leave the mini-displayport plugged into your laptop. Doing this, the display has been 100% reliable, no issues whatsoever. I was ready to get rid of my 8 year old 30" dell monitor, assuming it was the issue, but am so glad to have learned that it was only the adapter!

    This product should have never been sold as-is, but with this workaround, it works as expected.

    8 of 8 people found this useful

  • 3.0 out of 5 stars

    Works, but...

    • Written by from Pepperell

    There are some definite issues with this adapter. I am using a new 2013 MacBook Pro, 16g RAM, 512g SSD.

    I have a Dell U3011. The adapter works "most" of the time, but several times during the day it will go black for about 5 seconds and then come back. However, sometimes it goes black and comes back with heavy SNOW. At that point, I have to turn the monitor off for 3-5 seconds and then turn it back on. This has worked so far.

    However, I have several other USB devices connected to the monitor, so when it goes off, so does everything else.

    It's clear to me the adapter has a design flaw someplace. I suppose since it's new I could take it back to the apple store and get another one. But since this is a common problem with Mac users, it probably will not do much good.

    1 of 1 people found this useful

  • 3.0 out of 5 stars

    2560 x 1440 solution for Macbook Pro

    • Written by from NORTHBRIDGE

    I have dell screen with 2560 x 1440 and try different cables to get maximum resolution.

    I called Apple, Dell and other people about solution but no body told me this will work.

    I will recommend for High Res screens. Give 3 stars because of price too high.
    I could buy Apple TV instead of Adapter. Where is Quality in Value???

    1 of 1 people found this useful

  • 3.0 out of 5 stars

    Dual link Dvi - Expensive

    • Written by from Bergiee

    I bought this adapter for my korean PLS monitor and as many says it did give me some troubles when i woke the computer up from sleep. This is caused due to the loss of power in the usb port and when the computer wakes the adapter is off. To counteract this problem, try to hook the usb to a normal iphone charger that wont power off when the computer goes to sleep.
    Works good but way to expensive..

    1 of 1 people found this useful

  • 3.0 out of 5 stars

    Works reliably after 2 years of usage but has a bug

    • Written by from EL CERRITO

    I have been using this adaptor for 2 years to connect my Mac Air to a Dell U2711 27-inch display. The connector is needed to drive the display at its high resolution native mode. The connector has worked reliably except that, every once in a while, the display shows static white noise. The problem disappears after I unplug the display's dvi port from the adapter and plug it again. I honestly do not know if this is an adapter problem or a display problem, but some other reviewer has also commented having this problem when using his adapter, so I suspect that it must be a problem with the adapter. The problem, although annoying, hasn't been serious enough for me to diagnose it further.

    8 of 9 people found this useful

  • 3.0 out of 5 stars

    replaced adapter to solve flicker issues

    • Written by from Montreal

    I had all kinds of sporadic flicker and static issues with this adapter on a 2009 mac mini. Couldn't isolate the problem. Everything cleared up when the apple store replaced the adapter.

    90 of 95 people found this useful

  • 3.0 out of 5 stars

    Got it working, but no thanks to Apple

    • Written by from AMHERST

    Bought this to use my old Dell 3007WFP monitor with the new Retina Macbook Pro. On initial hookup the display was only detected in 1280x800 mode. The full 2560x1600 resolution was not available as an option. A call to Apple support was less than helpful with the end result of the support person giving up because it wasn't Apple monitor. She was also unwilling to escalate the call, or to put in a request for an engineer to look into it. A terrible experience, and it really tarnishes Apple's reputation in my mind.

    I was able to confirm the adapter works by testing on the old MacPro, so I was pretty sure it wasn't actually a hardware issue. Many hours later I did find a solution to let the laptop use the full resolution. It involved using the SwitchResX app, which you can find using google. It's still not a perfect solution since it costs a few bucks, and the solution doesn't use the Macs built in UI. But it does save me a grand for a replacement monitor. As a side result SwitchResX lets you use the full resolution of the Macbook Retina display. So now you can have a bigger desktop than the 30" display crammed into a 15" display. Get out your reading glasses.

    I am hopeful Apple will fix this with a patch to Lion, but given that the support staff refused to bring it to the attention of the developers I probably shouldn't be.

    71 of 75 people found this useful

  • 3.0 out of 5 stars

    Works fine except when waking up

    • Written by from Newton

    Works just fine with my MacBook Pro much of the time, but has periods when it flakes out: sometimes after waking up from sleep I get a bunch of static on my display (NEC PA271W). Power cycling the monitor clears things up, but it is annoying. Fortunately my monitor also has a DisplayPort input so I've switched to using a mini to regular DisplayPort adapter (also much smaller, cheaper, and doesn't need a USB port). If you've got no other option besides dual-link DVI then this adapter works OK, but I'd go with other options first if you can.

    23 of 25 people found this useful

  • 3.0 out of 5 stars

    Glitchy but functional

    • Written by from Berwyn

    Like others I have to unplug and reconnect a few times to get the screen to come on, but once it does I enjoy the 30" cinema display in all its 2560x1600 glory. Now if they could just get it working on the first time you connect it that would be great.

    9 of 9 people found this useful

  • 3.0 out of 5 stars

    Firmware Version 1.03 does not eliminate "flickering snow" problem

    • Written by from Cedar City

    I tried this adapter with a NEC PA271W monitor. I am using a 17" MacBook Pro (2011 model, 8GB RAM) with OSX 10.6.8. Initially, I was experiencing the "flickering snow" problem about 25% of the time when my computer woke from a sleeping state.

    It was very frustrating to have to cycle the monitor off and back on or to unplug it from the computer and then reconnect it so often to clear up the display.

    It was able to reduce the frequency of the problem by connecting a USB cable between the monitor's Upstream USB Port 1 and the USB port on the Adapter. But this did not eliminate the problem.

    NEC tech support sent me a Mini DisplayPort-to-DisplayPort cable (NEC Part Number PA-MDP-CABL, price $29.99). They also instructed me to connect an A/B USB cable between the monitor's Upstream USB Port 1 and the computer.

    So far, this has fixed the problem.

    This cable does support the Monitor's highest resolution, 2560 x 1440, 60 Hz.

    I do not know how well this particular cable will work for non-NEC monitors. There is a latch on the end of the cable that locks into the DisplayPort on my NEC monitor. I do not know if the DisplayPort connections on monitors from other manufacturers have the same fitting.

    19 of 21 people found this useful

  • 3.0 out of 5 stars

    Can't play rented iTunes content, and shows "snow" on blacks

    • Written by from Hamilton

    This adapter lets me connect my mid-2011 (Thunderbolt) MacBook Air to my old 30" Apple Cinema Display. It works for the most part, but it has significant flaws:

    1. Pure black areas show a little "snow" on the Cinema Display.

    2. The adapter doesn't seem to support HDCP, which means I can't rent a movie in iTunes and play it back on the 30" display. This is annoying given that I'm using an all-Apple setup, and renting iTunes content! (This does not seem to affect purchased iTunes video content, though -- just rented video content.)

    Neither is a deal-breaker, but both are annoying.

    20 of 21 people found this useful

  • 3.0 out of 5 stars

    New cable with Firmware 1.03 did the job!!!

    • Written by from Edgewood

    Followed the advice of entry: Aug, 2011 from MK Atlanta. I "Screen grabbed" (Cmd + Shift + 4) and printed MK's entry, and information about my Mac's hardware, which showed that I had a old 1.02 firmware cable. Took all the printed information and old cable to Apple store and they exchanged it, no problem. We weren't able to test it as the store was packed and everyone was using the monitors and laptops etc. But as soon as I got home, connected the new cable no problems, no snow, no flickering....Halleluiah!!! Why can't they post this, or send us an update? My new Subaru has had some computer updates since I bought it in February..... I get a letter, take it in, update, end of story. (note: I have a mid 2010 MacBook Pro)

    27 of 28 people found this useful

  • 3.0 out of 5 stars

    Works, but then not completely

    • Written by from Brabrand

    The noise in black when connecting a MacBook Pro to a 30" Cinema Display seems to be a 50/50% occurrence, yet nobody at Apple Support or at Apple Dealers know about this or what to do about it.

    It's quite odd that Apple hasn't sent out a replacement program for the default ones of these. Seems like a subcontractor that made an error, yet you feel that you have to convince Apple folks about that the problem exist.

    8 of 9 people found this useful

  • 3.0 out of 5 stars

    Connected to my Dell 30" U3011

    • Written by from SAINT LOUIS

    I reluctantly purchased the Dual-Link DVI to MDP adapter after reading the horrible reviews on this site and elsewhere. Yes, $100 to get full resolution seems excessive.

    I was able to get my 30" Dell hooked up and working properly. It works about 90% of the time, as I have multiple computers connected to the monitor, and sometime 1/10, when I switch the source input to my MBP, I see snow on top of my Mac OS screen. This is usually fixed by changing the input source to a different PC, then switching back to the MBP, or unplugging/replugging the MDP.

    For $100 it should work 100% of the time. 3.5 stars in my book.

    If you don't need USB pass through, you can pick up a cheap MDP to DP adapter from Monoprice

    22 of 24 people found this useful

  • 3.0 out of 5 stars

    Works fine but so pricey

    • Written by from Binningen

    Seems to work without any issues so far described by others. I am just very surprised that my adapter has firmware 1.01 even though this seems very old and supposed to not work. Hence only three stars as it is very expensive and with outdated firmware.

    16 of 16 people found this useful

  • 3.0 out of 5 stars

    stop working after OSX upgrade from 10.6.2 to 10.6.3

    • Written by from Miami

    My cinema 30" display worked fine with this adaptor on my macbook pro 17" (late 2009) up until I upgraded my OSX to 10.6.3 , upgraded again to 10.6.4 and in both cases external display is not detected

    24 of 28 people found this useful

  • 3.0 out of 5 stars

    flicker and other issues

    • Written by from Raleigh

    I have a MBP w/NVIDIA GeForce 9400M/GT video cards connect with this adapter to an LG W3000H. The monitor flickers, and if I turn my monitor off, when I turn it back on, I see the image, but it's snowy (very hard to see). I have to unplug the mini displayport, wait a few seconds and plug it back in.

    From system profiler, it looks like I have version 1.01. I plan to go back to the apple store to try to get version 1.03 which folks in this forum suggest fixes many issues.

    Does anyone know if we order directly from apple, if it's possible to get fw v1.03?

    10 of 11 people found this useful

  • 3.0 out of 5 stars

    Hybrid rating: Replacing adapter fixed problem

    • Written by from Louisburg

    Rating is 5 stars for eventual performance, 1 star for putting many defective adapters on the market and making me (and many others posting comments here) deal with this. Average rating then = 3 stars.

    I have one of the original Apple 30" Cinema Displays which has worked flawlessly for over 5 years with multiple Macs. It has the original full size DVI connector on the end of the cable. When I recently upgraded from a 2006 MBPro to a 2010 MBPro I had to buy the dual link DVI mini displayport adapter to drive the 30" to full 2560x1600 resolution. The first adapter created the horizontal video lines on the 30". They would appear only in areas displaying dark colors. Apple Support (phone call) had me unplug EVERYTHING except for the monitor. They had me reset the PRAM (power-command-option-P-R for 2 sec) and then reset the SMC (shift-control-option-power) to no avail. So we made a Genius Bar appt and I took the adapter and my new MBPro back to the local Apple Store. We plugged my MBP and this adapter into one of their new 30" Cinema Display HD monitors in the store. Of course, everything worked perfectly.

    After some head scratching and no satisfactory explanation, they swapped out the adapter for a new one and sent me home to try out. If it still didn't work I was prepared to go back with adapter, MBPro, and my 30" monitor. Luckily, It worked fine when I hooked up everything at home. So take your adapter back if you see these horizontal video lines appear. It solved my video noise problem, it may solve yours.

    21 of 22 people found this useful

  • 3.0 out of 5 stars

    this cable work on my NEC 30" 3090

    • Written by from Sydney

    just bought this cable plugin from my new mac mini to NEC 30" multsync 3090 monitor. It works so far without any problem.
    No flick
    No noise
    No problem after sleep.
    The 2460x1600 res is very detail and line is very sharp and fine showing on my monitor.
    Before I bought this cable, I had tried this cable with a apple cinema 30" in an apple store also no problem.
    I think it does the job..

    I don't like just it is too expensive but 30 " with 2460 res need this so I have no choice and I don't even know what else cheaper can replace this.

    Also not many staff in apple store I have been know this cable well.
    I heard someone can't get this cable work is because the firmware of this cable is not 1.03. Also no one in apple store can confirm to me the one I bought is 1.03 or not.

    Luck I have my one work and I think my one is the latest firmware

    15 of 16 people found this useful

  • 3.0 out of 5 stars

    Flicker = Power Issue

    • Written by from SEATTLE

    Great intentions for this apparently quick fix solution. Yeah, for what is rare to happen, Apple botched a bit on this extension. I can't complain in the end though because at least it works as desired.

    USB on almost every class of machine have the tendency to have power related issues. Devices that have a separate power adapter don't have to rely on this voltage. Bus powered devices are all trying to pull the voltage they need. In this case v1.02. If for any reason you get power fluctuations, your monitor will flicker, have issues, or not work at all.

    The Fix, plug the USB cable that is on the Y with the Mini DisplayPort and plug it into an external powered USB Hub that has its own power adapter.

    Don't have a powered USB Hub? No problem. Try using the 2nd Monitor's built in USB Hub. Plug the USB from the Y and plug it into your iMac and then take the USB out from the Mini DisplayPort to Dual-Link DVI Adapter and using a iPod/iPhone power cable and plug it into a Wall outlet for AC.

    Not sure any other way of doing it is worth it. Still glad I got it because there isn't really a better solution out there at this time.

    29 of 31 people found this useful