[kstor]

Hey guys,

I switched this spring to a 12" Albook and absolutely love the machine and OSX.

However, a problem has appeared. The easiest way for me to describe it is to refer you to a thread on the Apple discussions site, which is fairly thorough but doesn't give a solution (notice my post at the end) I was just wondering if anyone here has had the same problem and found a fix?

Thanks,

Nick Baum

[kstor]

Ok, I've now figured out what the problem is, so you don't need to read the apple discussion post.

Basically, OS X doesn't detect the monitors anymore, it just calls everything a "display" whereas before it would differentiate between say "CRT Monitor" and "Television". Because of this, output on tv is illegible (even after changing resolutions, colors, etc) and it doesn't automatically adjust to my CRT. Browsing through the systems folder, it seems that profiles are stored Systems/Library/Displays.
Does anyone have any idea as to why this happens? Solutions?

Thanks,

KStor

[ibook_steve]

Your logic board is not detecting the dongles and monitors correctly. Unfortunately, I do not believe that this is a software problem. Profiles are for Colorsync, not external display resolutions. The graphics chip "talks" to the TV dongle or an external VGA monitor to determine what resolutions it is capable of. If this communication does not occur or can't occur, it just detects a default display with default resolutions. First try replacement dongles. If you're still failing, you may need a new logic board.

Steve

[kstor]

That sounds reasonable. I got a new dongle, and I still have the same problem. However, is it possible for a logic board to break down after a while? because it worked fine at the beginning...
Another interesting point: a friend of mine gets the same problem using the dongle on an ibook.

Any suggestions?

Right now my current plan is to back everything up and reinstall OS X, see if that works, and otherwise get a new machine.

[Karim]

Try zapping your PRAM (CMD-OPT-P-R) on boot. Let it dong three times then let go off the keys (you have to hold them all down at once).

This has been known to sometimes wake up sub-systems behaving badly.