DVI-to-ADC adapter dying?
Hi,
I have an old 22" (not 23") Cinema Display purchased late 2001 or early 2002. It's been working fine all this time. I got a MacBook Pro 15" in April 2008. I also bought Apple's DVI-to-ADC adapter a little later. It worked great for a while. Then the USB seemed to be having problems, so I just didn't use that part of the adapter. Otherwise, no complaints. Video has always been flawless.
Lately, the video has been going out and is behaving badly enough that I either need to replace the adapter or buy a new monitor. These two symptoms arrived at about the same time:
1. With no computer connected to the DVI cable of the adapter, but the adapter plugged into the wall power and also connected to the ADC port of the monitor, I'd find the monitor screen blank but the power-button LED glowing. When it was in this condition, I couldn't then connected it to the laptop and have it work. Monitor stayed dark.
2. To fix #1, I started to leave the adapter unplugged from the wall power and only plug it in when I connected it to my MacBook Pro. This seemed to fix the problem for a few weeks, but lately when using it with the computer, the Cinema Display's screen would suddenly go black. The laptop screen was unchanged, so the laptop thought the primary screen was still the Cineme Dissplay (I had my menu bar on the Cinema Display). Unplugging from the wall and replugging the adapter seems to help, but the duration of working video is becoming less and less.
The adapter doesn't seem especially hot, so I don't think it's overheating, at least not in a major way. If the problem is the monitor, I don't want to buy another adapter to have the same problem and have spent another $100.
I scanned through earlier messages on this forum and didn't see anything that quite matched my situation.
Any suggestions?
Regards, Eric
I have an old 22" (not 23") Cinema Display purchased late 2001 or early 2002. It's been working fine all this time. I got a MacBook Pro 15" in April 2008. I also bought Apple's DVI-to-ADC adapter a little later. It worked great for a while. Then the USB seemed to be having problems, so I just didn't use that part of the adapter. Otherwise, no complaints. Video has always been flawless.
Lately, the video has been going out and is behaving badly enough that I either need to replace the adapter or buy a new monitor. These two symptoms arrived at about the same time:
1. With no computer connected to the DVI cable of the adapter, but the adapter plugged into the wall power and also connected to the ADC port of the monitor, I'd find the monitor screen blank but the power-button LED glowing. When it was in this condition, I couldn't then connected it to the laptop and have it work. Monitor stayed dark.
2. To fix #1, I started to leave the adapter unplugged from the wall power and only plug it in when I connected it to my MacBook Pro. This seemed to fix the problem for a few weeks, but lately when using it with the computer, the Cinema Display's screen would suddenly go black. The laptop screen was unchanged, so the laptop thought the primary screen was still the Cineme Dissplay (I had my menu bar on the Cinema Display). Unplugging from the wall and replugging the adapter seems to help, but the duration of working video is becoming less and less.
The adapter doesn't seem especially hot, so I don't think it's overheating, at least not in a major way. If the problem is the monitor, I don't want to buy another adapter to have the same problem and have spent another $100.
I scanned through earlier messages on this forum and didn't see anything that quite matched my situation.
Any suggestions?
Regards, Eric
MacBook Pro 15 (early 2008), Mac OS X (10.5.7), Cinema Display 22"
