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Mini displayport to Dual-link DVI
- Thread starter YahonMaizosz
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It doesn't unfortunately - I only get a problem about once a fortnight but it happened this morning.
Using the same adapter here and it works as before (the 10.5.8 update has no influence), just fine. The only problem I've seen so far is that sometimes (as in 1% of the time) after waking from sleep the screen does not show the proper image what I'm expecting (as in: it differs everytime, sometimes it looks like it's interlaced, sometimes it looks like I need special 3d glasses, etc.). Once you fix it by changing the inputs on the screen or unplugging and plugging the mDP connector back in it works flawlessly. I've got a Dell 3008WFP rev. A02 btw.
I'm looking at the mDP-DP cable from Circuit Assembly because that'll save me a usb port and I've seen people report better performance with the 3008wfp. Dunno if I'll buy one since the adapter I have now works nicely (even with the occasional problem which is easy to fix).
I'm looking at the mDP-DP cable from Circuit Assembly because that'll save me a usb port and I've seen people report better performance with the 3008wfp. Dunno if I'll buy one since the adapter I have now works nicely (even with the occasional problem which is easy to fix).
I got sick of that problem and complete lack of a proper hardware solution, so I found a work-around that works for me. To restore the functionality of the display instead of disconnecting it physically, one can put the display to sleep or the whole computer to sleep if you wish. At least on Leopard Contro-Shift-Eject puts all connected displays to sleep and it takes just a few seconds to come back. For me its less of a pain than replacing a computer or using a smaller display.
Hope it helps.
Hope it helps.
That is the best remedy until Apple officially releases its own cure to this madness..
For what it's worth, I'm using a brand new 13" MacBook Pro with a 30" Cinema Display with a fair bit of success. I only notice a little "static" on entirely black screens on the Cinema Display. It's not noticeable at all when there are documents/browsers displaying "normal" content. Sometimes, however, it isn't present initially, but always comes back. I haven't had any of the more disruptive issues that others have reported.
I've read plenty of threads of people experiencing serious issues and it really surprises me. Frankly, Apple should accept responsibility and take control of this situation, as those affected by it are those that have invested a great deal of money in Apple products (between a new Mac, $100 adapter, and (in many cases) a 30" Apple Display). I hope they choose to do the right thing.
I've read plenty of threads of people experiencing serious issues and it really surprises me. Frankly, Apple should accept responsibility and take control of this situation, as those affected by it are those that have invested a great deal of money in Apple products (between a new Mac, $100 adapter, and (in many cases) a 30" Apple Display). I hope they choose to do the right thing.
Apparently, Apple don't seems to intent in releasing a fix... This is truly shameful on Apple's part.. Does upgrading to Snow Leopard fix this issue?
What a shame...
They'll fix it in like 5 years when they decide to the change the whole spec.
Sharing my Dual-Link DVI problem profile
Just sharing to help inform. No solutions, just history.
Running a 2009 MacBook Pro connected to a Dell UltraSharp 3007WFP-HC 30-inch WideScreen Flat Panel Monitor. The external display works perfectly when I use it with my older MacBook pros and older connectors. However, once I hook up my 2009 MBP with Mini DisplayPort to Dual-Link DVI Adapter, the external display does the following:
* Flashes garbled white horizontal lines randomly every 5 to 10 minutes.
* When the computer wakes up after a long sleep, the external display shows 'double vision' with some vibration.
* While the computer is awake the external display goes black and stays black (while still powered). The MacBook Pro continues to display images on its screen as it did before the external display blacked out, and does not shift to 'single screen' mode.
* Always, there are random flickering white pixels distributed over any black backgrounds. Almost looks like a subtle snow-globe effect.
For each of the above issues, my remedy is to unplug the DVI Adapter cable from the MacBook Pro and then plug it in again. It resets the external display to 'normal'.
I've had Apple send me two new cables and the problem persists.
Full specs on my setup:
MacBook Pro 17" Unibody (released summer 2009)
Mac OS X 10.6.1 (10B504)
Adapter Type: Mini DisplayPort To Dual-Link DVI Adapter
Adapter Firmware Version: 1.02
Dell UltraSharp 3007WFP-HC 30-inch WideScreen Flat Panel Monitor
Just sharing to help inform. No solutions, just history.
Running a 2009 MacBook Pro connected to a Dell UltraSharp 3007WFP-HC 30-inch WideScreen Flat Panel Monitor. The external display works perfectly when I use it with my older MacBook pros and older connectors. However, once I hook up my 2009 MBP with Mini DisplayPort to Dual-Link DVI Adapter, the external display does the following:
* Flashes garbled white horizontal lines randomly every 5 to 10 minutes.
* When the computer wakes up after a long sleep, the external display shows 'double vision' with some vibration.
* While the computer is awake the external display goes black and stays black (while still powered). The MacBook Pro continues to display images on its screen as it did before the external display blacked out, and does not shift to 'single screen' mode.
* Always, there are random flickering white pixels distributed over any black backgrounds. Almost looks like a subtle snow-globe effect.
For each of the above issues, my remedy is to unplug the DVI Adapter cable from the MacBook Pro and then plug it in again. It resets the external display to 'normal'.
I've had Apple send me two new cables and the problem persists.
Full specs on my setup:
MacBook Pro 17" Unibody (released summer 2009)
Mac OS X 10.6.1 (10B504)
Adapter Type: Mini DisplayPort To Dual-Link DVI Adapter
Adapter Firmware Version: 1.02
Dell UltraSharp 3007WFP-HC 30-inch WideScreen Flat Panel Monitor
my limited experience so far...
Despite all of the horrible news about the Mini Displayport to Dual-link DVI adapter, I went ahead and got one because I want to downgrade from a Mac Pro to a Mac mini. I currently have two Macs on hand to test the adapter with; an early 2009 mini and an early 2009 MacBook Pro 13".
My display is the 30" HP LP3065. When I first connected the display to the MacBook using the adapter (with firmware 1.02) all was fine until the first sleep session after which my display was flickering when the computer woke up. I did a little Googling about the problem and found a blog post and discussion here.
The original poster there had some success powering the adapter through his USB hub instead of plugging it directly into the Mac. So I tried that and have had no flickering issues for the rest of the afternoon, using either computer.
I've seen none of the white static mentioned elsewhere and no issues except the one-time flickering I saw before switching to the USB hub. Admittedly, my experience is short so far but I wanted to join in the discussion here anyway. As time goes on, I'll post more when I know more.
Despite all of the horrible news about the Mini Displayport to Dual-link DVI adapter, I went ahead and got one because I want to downgrade from a Mac Pro to a Mac mini. I currently have two Macs on hand to test the adapter with; an early 2009 mini and an early 2009 MacBook Pro 13".
My display is the 30" HP LP3065. When I first connected the display to the MacBook using the adapter (with firmware 1.02) all was fine until the first sleep session after which my display was flickering when the computer woke up. I did a little Googling about the problem and found a blog post and discussion here.
The original poster there had some success powering the adapter through his USB hub instead of plugging it directly into the Mac. So I tried that and have had no flickering issues for the rest of the afternoon, using either computer.
I've seen none of the white static mentioned elsewhere and no issues except the one-time flickering I saw before switching to the USB hub. Admittedly, my experience is short so far but I wanted to join in the discussion here anyway. As time goes on, I'll post more when I know more.
Poor resolution on 30" screen with 15"MBP with mini-adapter
I can't get better than 1280 X 800 with the new adapter on my new unibody Macbook Pro. My old macbook pro did 2560 without a problem. Any advice?
Doesn't work for me
I am not sure I completely understand. My MacBook Pro with the minidisplay adapter won't drive my 30" Samsung monitor with any finer display than 1280 by 800. Disconnecting the display physically does not help. Nor does putting them to sleep and then waking them up
Just to let you know guys that I just received a brand new mac mini with a 100$ Mini displayport to Dual-link DVI adapter, a 30" ACD and Mac OS X 10.6.2. I get the green-pixel-snow-on-black-background problem intermittently about one minute every hour. But it is tolerable. Does anybody knows if it damages the display?
Problem solved by dual-link dvi
I feel the price of the adapter is more than worth it.
I tried the mini-display port to DVI adapter (on my new MacBook Pro 15") and it would not drive my Samsung 305T 30 inch display at a higher resolution than 1280, but I just bought a dual-link mini-display port to DVI adapter and now the display works perfectly at 2560 by 1600, its native resolution. Mysteriously, the USB cable that is part of the dual-link adapter is crucial. It doesn't work without that plugged in. Can anyone explain that? I am very pleased to have my monitor back with full resolution.
I feel the price of the adapter is more than worth it.
De re, I'm glad to hear you got it worked out. The dual-link adapter requires some power from the USB port to do its conversion thing. I don't know exactly why, but it's the reason some are having best success with the adapter when it's plugged into a USB hub which is always on.
I've had only minimal trouble with my adapter after about a week of use. About one time in 20, when the Mac wakes up, the display is really fouled up. Putting the display to sleep momentarily (shift-control-eject) and waking it solves that problem. I can live with it but can't understand why Apple can't get it to 100%.
I think there are definitely dodgy ones, but also some good ones also.
I started with one of these to drive my third 30 ACD on my <P via the 4870 cards MDP. The first one was dodgy (bad) it made the display flicker once every 20-30 mins. I put up with this for 3 months. Then I got sick of it and returned it to the retail store and they swapped it out for another.
Surprise, surprise it worked. I didn't change my set-up one bit except for the MDP to DL DVI adapter. So I definitely reckon there's some bad batches, keep swapping till you get a good one!
I started with one of these to drive my third 30 ACD on my <P via the 4870 cards MDP. The first one was dodgy (bad) it made the display flicker once every 20-30 mins. I put up with this for 3 months. Then I got sick of it and returned it to the retail store and they swapped it out for another.
Surprise, surprise it worked. I didn't change my set-up one bit except for the MDP to DL DVI adapter. So I definitely reckon there's some bad batches, keep swapping till you get a good one!