My mac monitor is acting goofy

davidjam

I know this is totally unrelated to anything php. It's even odd for el, but anyways, I have one of these Mac "Studio" Displays 17". Got it 4 years ago. So now after it's been on for a while (like a few hours) it turns off and on again repeatedly, until I turn it off and let it "cool down" for a while.

Has anyone else had a similar problem?

vaaaska

Haven't had this problem but you should check to make sure all the connections are tight. If so, the internal power is having problems...better take it to the shop before something even worse happens.

goldbug

I've not had problems like that, but I use non-Mac displays with my Mac. One goofy thing to try, might not work, but couldn't hurt to try: what sort of input does your panel have? ADC? DVI? DB15? if more than one, try an alternative if possible. Could help eliminate bad cable and/or bad graphics card/input section.
Of course, this is all wild speculation 😃

EDIT: You're not the only one it seems:
http://www.macobserver.com/comments/commentindivdisplay.shtml?id=19504

davidjam

Once again goldbug you make me realize how little I know.. thatsafine

If by DB15 you mean a 15-pin D-submini VGA connector, then yes, that is what I have but I see no way of changing that. There are some front panel settings but none of them jibe with what you say.

I guess I better take up vaskas advice and have it serviced...

Elizabeth

Originally posted by davidjam
Once again goldbug you make me realize how little I know.. thatsafine

Don't worry david I think gb just makes up things and nobody ever calls him on it. 😉

goldbug

Originally posted by Elizabeth
Don't worry david I think gb just makes up things and nobody ever calls him on it. 😉

That's my usual MO, yes.

David: I just wasn't sure what kind of monitor it was or what apple provided for connectivity. Just for reference to anyone who cares and wants to know:

DB15, aka VGA: standard means to connect analog video devices. Trapezoid connector, 3 rows of 5 pins.

DVI (Digital Video Input?): newer "standard" means to connect video devices using a digital signal. Many mid->high end LCD screens, plasma TVs, etc... have this. Looks like two grids of pins slightly spaced with either a horizontal bar or "plus" next to it

ADC (Apple Display Connector): very similar to DVI, not quite sure exactly how it differs. Looks almost exactly like DVI, just without the space between the two groups of pins. (and the connector border is rounded instead of trapezoid-like)

Now, as far as diagnosing your problem, you're probably going to have to contact apple unfortunately. It sounds like something is wrong either with the power section (does the power /signal LED turn off/on as well?), or the actual electron guns (assuming CRT here). I had problems with the latter on my deceased 22" Iiyama monitor... would've cost more to fix it than to buy another 🙁

davidjam

gb, greatly appreciate the breakdown of video connectors. I guess mine is the db-15. The monitor is crt and yes, the power signal does turn on and off as well. The curious thing is that it only happens when the monitor has been turned on for a while, but I have used it constantly for 4+ years now and wouldn't be surprised if its fried. guess'll just pamper it along until it drives me mad enough to get a new one.

goldbug

It's definitely not a long-term fix,... but maybe put a fan next to it or under it, blowing through the ventilation holes to keep the guts from heating up as fast... might delay the problem during a session. I had an old MAG 17" that, after maybe 5 years, would start emitting a painful high-pitched whine after it'd been on for a bit. Definitely frustrating.