Cinema Display "badly" recognized

Hi,
I'm using a Cinema Display (20 '') on a G5 since 2 years, and today I've encountered a problem I've never had before: when I press the F14/F15 keys, the luminosity of the display doesn't change. When I open the "Monitor" pref pane, I dont have the luminosity "ruler" anymore... and when I put the Mac in "sleep" mode, the led of the display is fix, it doesn't pulsate as before...
I know that can seem ridiculous as a problem, but this used to work so it can't stop like that...
I've tried with two OSes (Tiger and Panther) the result is the same. I've also tried to remove the power cords of the Mac and the display for some minutes, and reinitialized the G5 PRAM, but none of those changed anything...
Any idea someone ?
Thanks in advance.

Ok, thanks for the information. I'll keep a closer eye at it, then... It's sad your AppleCare ended before you figured it out
Don't you know if that's a peripheral that damaged the display's hub or if it just "died" by itself ?

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Built-in camera in Cinema Display not recognized after SL Install

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What I've done is create a new admin user account in System Preferences Accounts pane
http://docs.info.apple.com/article.html?path=Mac/10.5/en/8235.html
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I'm glad there are others out there who are also seeing this stuff. My local apple store manager was more concerned about her stores sales rather than making the swap and getting me a new one. They held one after I was on the phone with them for 45 minutes, and this process required me to call back the next day again to make sure it was put on hold because even though they were closed, she couldnt place it on hold. Then, this monitor had dust behind it, and they were out of stock and were very unhelpful. I contacted apple and they have since been shipping me a new monitor. The first one came two days ago, cluster of 4 stuck green pixels noticeable on a black background, backlight issues, and there was some dust.
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https://www.flickr.com/photos/69744417@N06/15415125321/
https://www.flickr.com/photos/69744417@N06/15231698748/
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Hi thedankness,
Thanks for visiting Apple Support Communities.
You may find the steps in this article helpful with troubleshooting your display connection:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Regards,
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Pressing the display's power button does not turn off the display nor put my Mac to sleep. Instead, holding the button just makes the power LED brighter than usual.
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Yesterday I went to the Apple Store and asked about buying a new 27" iMac and connecting it to my 24" Cinema Display. I was told that I could do that with an adapter and was sold a Mini DisplayPort to DVI Adapter.
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OK, you confused me talking about the m-DP to DVI adapter. The Apple Store should refund your money for that bad recommendation. I think whomever sold it to you made the same mistake that I did. They thought that you had the model Cinema Display prior to the one that your have.
So you have the 24" Cinema Display that was available from 2008 until just this past summer. It has one cable that ends in three connectors; mag-safe, USB and m-DP. Well the mag-safe connector was to power a MacBook so that one is fine not plugged in. The USB connector is for connecting the USB ports on the back of the display to your Mac, so there should be no issues plugging that in because it will give you an extra self-power hub if you need more USB ports at some point. And of course the m-DP is allowing the Mac to drive the display.
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Hello everyone, hoping for some help with my new Apple Cinema Display 20"

Hi everyone, I bought an Apple Cinema Display 20 inch LCD monitor, just about 3 weeks ago. I have two issues I am hoping to get some help with.
1) I am using the screen on a PC with Windows XP, and I was very disappointed at the lack of PC support. I have no on screen display (OSD), so I can't see what percentage I have my brightness set to, and I can't alter the colour or contrast of the display, etc. Luckily it defaulted to very good settings, but I would really like to be able to use the (fan made?) program called "WinACD". If I would be best asking somewhere else, please direct me there. If not, my problem is that I installed it added the "Controls" tab, but it just says, Virtual Control Panel "None Present". I have tried googling for an answer, and I have seen many suggestions, but none of them worked. I installed the WinACD driver without my USB lead plugged in, and someone said that was important. So I have tried uninstalling, rebooting, then reinstalling it again with the USB plugged in, and a device plugged in to my monitor to be sure. It didn't seem to help. I have actually done this process a few times, just to be sure. So I would really like to get that working if possible.
2) I am disappointed at the uniformity of the colour on the display. I have seen other people mention this (again, after a google search), and that someone seemed to think it is just an issue we have to deal with, with this generation of LCD monitors. Before I bought this screen, I had an NEC (20wgx2), and it had a very similar issue. Most of the time, you cannot see any problem at all, but if you display an entire screen with a dark (none prime) colour, like a dark blue green colour, you can see areas where it is slightly darker than others. It was more defined on the NEC screen, and that is why I returned it. I now bought this Apple Cinema Display, because it was the only good alternative to the NEC. (It has an 8bit S-IPS / AS-IPS panel, which was important to me). But the problem exists in this screen too. It isn't as bad thankfully, but it still exists... I have actually tried a third monitor just to be sure, and the problem existed very slightly in that one, so I think I am probably quite sensitive in that I can detect it.
It is most noticable to me, because I do everything on this PC. I work, I watch films, and I play games. 99% of the time, I cannot see this problem. But in some games (especially one)... the problem is quite noticeable. When you pan the view around, my eyes are drawn to the slight areas on my screen which are darker, and it ruins my enjoyment. To confirm it wasn't just the game, like I said, I can use a program to make the entire screen display one solid colour, and if you pick the right type of colour (anything that isn't a bright primary colour), I can see the problem - albeit fairly faintly.
I am pretty positive that it is not my graphics card or any other component of my PC, by the way, because everything is brand new and working perfectly, and the graphics card specifically, I have upgraded and yet the problem remains - even on the new card. Also, the areas that are darker, are different on this screen than on the other screens I have used.
So basically, I would like to register my disappointment at the lack of perfect uniformity on a screen which cost me £400 (over double what most 20 inch LCD screens cost), and I would like to know if anybody could possibly suggest a way to fix it?
It is upsetting, becuase although this problem exists on other screens too, this is, as far as I know, the most expensive 20" LCD monitor available today, and uses the best technology available too.
p.s. If anyone would like to use the program that lets you set your entire PC screen a specific colour, it is called "Dead Pixel Buddy", and it is a free piece of software, made by somebody to check for dead pixels. But I found it useful for other things too, including looking at how uniform the colour of the screen is. That's not to say I was specifically looking for this problem by the way... the problem cought my eye.
Thanks in advance!
Message was edited by: telelove

I've been talking about this on another forum too, and I made some pictures in photoshop to describe the problem. Here is what I posted on the other forum:
Yes, "brightness uniformity" definitely seems to be the best description of my issue.
Basically it just seems like there are very faint lines down the screen, that are slightly darker than the other areas on the screen. They aren't defined lines, and they aren't in a pattern. It's just slight areas that are darker, and the areas seem like narrow bands/lines. Usually you can't see it, but in some cases, it is quite noticeable. It is mainly when I'm playing a game. The slightly darker areas are not visible, and then when the image moves (because I am turning in a car, or turning a plane, or turning in a shooter etc.) the image moves, but these slightly darker areas stay still, and that makes them really stand out.
As for how it looks, I tried to make an example in photoshop:
Original Image:
http://img340.imageshack.us/img340/3045/td1ja9.jpg
Then imagine turning the car around a bend, and then it looks like this:
http://img266.imageshack.us/img266/959/td2hq7.jpg
It's those lines in the clouds. If you can tab between the two images, you can see the difference easily. Imagine seeing those lines appear, every single time you move in a game. (I haven't tested this in movies yet, but I am assuming it's the same).
It isn't very clear on a static image. But when the image moves, the darker areas stay in the same place and it draws your eyes towards them. It isn't terrible, but it is annoying, especially consider how much this screen cost.
Message was edited by: telelove

Can't Use Cinema Display 30-inch With G5 (AGP)

After making a trip to the Apple store to make sure we got what we needed, and because we needed a monitor ASAP, we brought home a 30-inch cinema display. The people at the store assured us that even though they didn't carry it, we could easily find a graphics card that would support this monitor on a G5 that has only AGP and PCI. Turns out they were wrong. After spending most of the day, between the hour drive each way to the store and lots of searching on the Internet, we finally came to the conclusion that we need to return the monitor. There are currently no available AGP or PCI cards that support the 30-inch monitor on a G5. The few that do support it are either discontinued or out of stock indefinitely, even from their manufacturers. Even Ebay only has one or two that are certain to work (as there are apparently multiple versions of the Radeon 9600 Pro). Whatever video card you get, you must be sure it specifically supports Mac, since the Mac's video card requirements are apparently not standard.
So this serves as a warning, if you have a G5 you may or may not be able to use a 30-inch monitor. It is far from a sure thing, and definitely not something you can go out and buy and then just bring home and plug in. This was also my first (attempted) purchase at an Apple store (since we buy mostly mail order), and it was very disappointing. We got bad information, a product we can't use, and now two wasted 120-mile round trips. Actually the best advice we got from the Apple store was to buy another brand of monitor. We should have listened.

Thanks. I saw your post just in the nick of time. I read it while I was on the phone with the Apple store discussing their restocking fee. I'll have the card tomorrow and hopefully my problem will be solved. And I was also able to cancel my order for the other monitor as it had not shipped yet.
But I still think my warning is valid. This particular card is discontinued and OWC only has a few left. And as far as I can tell, no one else has anything compatible. So in the near future, driving a 30-inch monitor with a G5 without PCI-Express will not be a sure thing, and will certainly not be a one-stop shopping experience.
Interesting side note, the Apple store was going to waive their restocking fee because they could not find a compatible card for me. When I told them I just found one, they said OK and didn't even ask what I found or where I found it.
1.25 GHz G4 DP

Apple 23" HD Cinema Display no longer working with new Macbook Pro

I bought a 23" used HD Cinema display the other day along with the ADC-DVI and DVI-Mini Display adapters. I had it hooked up and it was working perfectly for 3 days. Today my wife tried to connect her Macbook accidentally via the USB that is part of the ADC-DVI adapter which didn't work (why is that USB there anyway?). Then when she went to connect the external display back to my Macbook Pro it did not wake up after being connected. I have tried resetting the PRAM on the MBP and have disconnected and re-connected all connections but nothing will get the display working with the MBP anymore. When I connect and disconnect the mini-display plug into the MBP the MBP flashes the blue screen as it appears to be reacting, but that's it. I can't detect any display when I go into the display system preferences. Does anyone know how I can get the Apple Cinema display working again? Thanks for any help.

Ryan Nagy wrote:
Upon reflection, I think my issue is different. Probably should not have posted it here. As it turns out sometimes my display works, sometimes it does not. I think the power adapter has gone bad. A common occurrence here in Mexico where the power can fluctuate quite a bit. - Ryan
There are couple of long threads in the display section about problems with the power supplies on the 23" HD DVI. See this one for instance: https://discussions.apple.com/message/17981683#17981683
Mine one day just wouldn't turn on -- connected to an old G4 MDD and the Mini -- a bit of fiddling it would occasionally start up, sometimes not. Similar to what you described, the Macs would see it in System Profiler, but it just wouldn't turn on.
Based on that thread, I figured the problem was mostly likely the power supply. A local authorized repair place didn't have a spare for me to try, but the tech sniffed it and mentioned it the burnt electronics smell. LOL, I sniffed it and sniffed the power supply for my 20" DVI Cinema display -- indeed a weird smell.
Based on that thread, I decided to bite the bullet and buy a beefier 150" power supply for the 30" Cinema display, which Apple says in compatible with the 23". See: http://support.apple.com/kb/HT2803
I hooked it up, crossed my fingers, and it fired up right away. It's been working fine for about 3 months now. Cheaper than buying a new monitor.

Dell 2005FPW vs. Apple 20'' Cinema Display

I know this is sacrilege, but it is my patriotic duty and right to save $300 on my consumer electronics (after education discount for Apple, and tax, ACD comes out to $756, and Dell comes out to $453; both are out the door prices).
Is there a difference in quality between the 20'' Apple Cinema Display and the Dell 2005FWP, or is the difference mainly superfical? What are the advantages disadvantages to either? Do these differences warrant $300I know there was a previous post, but if anyone cares to chime in, please do.
I am running a Powerbook 12'' G4 1.5 GHz, and am consider getting a new Mac Mini in the near future, but just generally speaking...

I've read of a lot of people saying that the 2405 is blindingly bright. To my eyes, that's true, but only if you turn up the brightness to max and change the color temperature setting to 9200K. At brightness around 50/100 and the standard 6500K color, everything's fine for me. Constrast is not adjustable using DVI (which is how it's suppose to be).
But to the question, the Dell 2405 uses a Samsung PVA panel, whereas all the Apple displays use LG-Philips S-IPS panels. Reviews, personal opinions, and your own eyes can tell you one is better over the other. In my experience, I don't consider the LG-Philips 20" and 23" panels (the same panels found in displays by Apple, Dell, HP, Viewsonic) to be anything spectacular. Colors are somewhat bland, black levels aren't as good, and the LCD or coating over the LCD has a grainy appearance that kind of gives off an annoying glittery look. The Samsung panel at 24" looks better to me. But with the 30" LG-Philips panel (shared by the Dell and Apple displays), it's amazing. The grainyness isn't noticable, viewing angles are good across the entire screen (though not with blacks which turn purple at an angle), and color/contrast are good.
Bottom line is that S-IPS panels like in the Apple 23" do have better viewing angles (in which colors don't shift as bad at an angle, and detail isn't lost as badly), but blacks don't look as deep and turn purple at an angle. It's also less bright, but perhaps also has not as good contrast. Color is probably subjective - some will say the 2405 is over-saturated, others will say it's vibrant. I'd try the Apple if the Dell doesn't satisfy you. Both are regarded as the best of the best.

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