2787 Views 6 Replies Latest reply: Jan 6, 2010 10:47 AM by CarlBjrk
Thanks for the reply!
I think the problems with the + and - buttons not working and
the triple short flashes are related.
Because the display setting are correct, it's just that the display communicates all
non-video-realted IO through the FW connection (such as the adjustment of brightness).
And I think it is thought the FW connection that the display can get the knowledge that the resolution is indeed valid.
Or something like that.. Of course my hypotheses can be completely wrong..
As I said.. the screen is otherwise working. I get the correct screen output.
At the moment I'm having a pice of blu-tack on the led light. I really wish I could find a more tasteful solution
USB is used for computer control of brightness. Does "Displays" system preference have a brightness slider? It won't if there is a USB problem. Resolution information uses the DVI port. FireWire is not used for anything other than the FireWire ports.
Try running it with its USB cable unplugged. If you're using the correct resolution, and the light still flashes and the buttons don't work, the problem is in the display. If it's not under AppleCare, it's probably not worth fixing. Just put black tape over the flashing light.
The display USB hub is working properly. However the display shows no change in light flashing wether I have the USB connection pluged in or not.
Is is possible that there is some problems with the drivers?
Since I just got this new display as a replacement (I had to pay the price for a new one) I think it might be under AppleCare..
If the display's brightness buttons don't work with USB disconnected, the problem has to be in the display. You could try it on a different computer to confirm it. If you just got it from Apple, they should fix it for no charge. Since that model was discontinued about a year ago, they may have sent you a refurbished unit that wasn't fixed properly.
Thanks for all the help.
I'd like to give an update!
Until now I've took the advice to just block the light (I used blu-tack.. unfortunatly tainted green).
What I didn't mention in my original problem statement, (I didn't think it could be of relevance,) was that I actually hadn't used the power cable that came with the adapter. With the power cable, I'm refering to the cable between the adapter and the wall socket. I thought that the cable naturally must really just be three separete wires with no electronic components involved whatsoever.
I might have been wrong or the material itself had effect because I just recently replaced this temporary cable I've been using (,the temporary cable is suppose to supply power to and old, no unused iMac G3,) and suddenly, all the problems mentioned with the flashing led lamp and the non-reacting side-buttons magically disappered!
Again, thanks for all the effort in trying to help me even though it was my own
fault all along!