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30" CD Acting weird
- Thread starter wardworld
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OK, too late to just take it in and swap.
Obviously you have checked all the monitor connections, right?
What system are you running it on, and what video card to you have?
Obviously you have checked all the monitor connections, right?
What system are you running it on, and what video card to you have?
Okay, more weirdness...now it's NOT doing it and the thumbnail I attached does NOT look like it actually captured the "marching ants of color" thing.
I'm running OS 10.4.6 on a Dual 2 GHz G5 w/ 2.5 GB of RAM. I have a brand new Radeon 9600 Pro installed.
I guess this is like the used car problem where the issue only works when it wants to make you look foolish
I'm running OS 10.4.6 on a Dual 2 GHz G5 w/ 2.5 GB of RAM. I have a brand new Radeon 9600 Pro installed.
I guess this is like the used car problem where the issue only works when it wants to make you look foolish
wardworld said:
Well of course not. It's a hardware issue, your G5 captured the pixels correctly.
There's a few possibilities. I've seen the 30" do this when the connection is bad. And the 9600 Pro isn't capable of running a 30" ACD... you must have a 9650.
If it's not in the screenshot, and it's intermittent, then my money is on a poor connection or something near the monitor that's interfering with it. Is, say, your refrigerator running when you see the noise or something? Or perhaps it only happens when the cable is routed a certain way? Subtle stuff like that is more often external than a hardware problem, so check all the connections, see what's going on when it happens, and maybe you'll figure it out. If not, maybe a swap is in order, though there's a good chance it'll just come back.
Oh, and an interesting thing about graphics card issues: When a graphics card starts screwing up in OSX (my 9800 did last year), I was surprised to find that I *could* capture the garbage with a screenshot. Apparently OSX just grabs the frame buffer for screenshots, so WYSIWYG. Shocking, in a way.
Now, this won't show up if it's a bad monitor or cabling, so that sort of rules out internal problems, anyway.
Oh, and an interesting thing about graphics card issues: When a graphics card starts screwing up in OSX (my 9800 did last year), I was surprised to find that I *could* capture the garbage with a screenshot. Apparently OSX just grabs the frame buffer for screenshots, so WYSIWYG. Shocking, in a way.
Now, this won't show up if it's a bad monitor or cabling, so that sort of rules out internal problems, anyway.
dferrara said:
Yes the new 9600 can run the 30" ACD
http://eshop.macsales.com/item/ATI Technologies/100435060/
eva01 said:
It certainly took them long enough. I remember hacking my 9600 Pro, back in the day...
This is a known issue with some batches of the 30" display.
You should find some very informative posts on this if you search at the apple discussion forums for "dancing green pixels".
You should find some very informative posts on this if you search at the apple discussion forums for "dancing green pixels".