Using TV as a display: Minidisplayport DVI RGB cable

Hello, I ordered the above assortment of cables from amazon (mini to DVI to RGB) and my computer won't detect the display :[ Has anyone else had similar problems? The TV is made by Sylvania. Thank you

I looked at the picture on Amazon. On the Mini DisplayPort connection there are four female pins in a square to the right of the main DVI pins - those are Analog and the Mini DisplayPort is Digital only. The pins may mate but the signal is absent. The Apple Mini DisplayPort adapter does not have them - I destroyed my DVI to Video Adapter when I got my MacBook, trying to connect it for a net loss of $29.
Then I spent over $70 in the third-party world to connect to older TV's in my school. I used a solution using the Mini DisplayPort to VGA adapter that supports Composite Video (yellow plug) connection.
Also, the Mini DisplayPort to VGA connection is brilliant on my newer model TV that has VGA input.
Good luck.

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Phil,
Thank you for the reply. I kind of figured this was the case. I have found two "boxes" that supposedly handle this problem. One is from Dr. Botts called Vgator and the other is from Gefen (www.gefen.com), but these solutions are very expensive -- $300 each -- and I am not certain of the quality of the picture. For that kind of money, I could buy a cheap PC monitor and just use the Cinema Display for Mac-only needs, as it was intended.
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MBPro won't detect external display on DVI

Hi Folks,
I have a strange problem that gives me quite some headache:
Is use a MacBook Pro 3,1 2.2 Ghz, 4GB RAM, 128MB NVidia something together with a Samsung SyncMaster 215TW.
For the past year I was using my external screen without any trouble, connecting it via DVI to the mac. Every night I turn down the lid putting the notebook in sleep mode and switch off the monitor. Exactly as I did yesterday. But this morning however the external display didn't wake up as usual it did just nothing - was not even detected via the detect display function. And this is still the case right now.
So when I plug (or unplug) the DVI to the external something is still going on. I get the blue screen (don't get that wrong that used to appear just before it would expand the desktop to the external screen, but then it switches back as if there would be nothing connected.
No relevant entries in any logfile. System Profiler shows "Status: No display connected". The display itself says some no connection message if unplugged and - get this - falls to sleep mode right after I plugin the dvi connector to the mac.
I tried all this:
-reboot (with display connected & without display connected and all other imaginable combinations) - no positive result
-the display via DVI-VGA adapter works (but the image is not as nice unfortunately)
-reset PRAM (boot with optioncommand+PR)
-reset the entire thing (no power, no battery and hold the powerkey for 10 secs.) nothing
-connect some other external display to the mac via DVI - works perfectly
-connect the display via DVI to an other macbook pro computer - works perfectly too
-hard reset the display via the (red) support menu - no result
-an other DVI cable - no result
-booted from the leopard install cd - same thing
-booted from an other harddisk with 10.4.10 (removing the internal disk)- same strange behaviour with the old system
-booted ubuntu linux 8.04 - even here the same problem X doesn't recognize the external display if it is attached to the DVI port also no entries to the logs here.
-SwitchResX and tried to reset the display setting from there (vendor id 4c2d & product id 213 & 214) but still no success.
- called the apple support and my distributer of trust - no ideas but could be a hardware fault (mmh ok... but why do all other display I tried work perfectly with that beast of macbook pro but not any SyncMaster 215TW?!? that worked great for the whole last year)
I guess the macbook had a very bad dream that very last night about mac eating foo-bars that crawl through DVI cables from any 215TW display.
As for now I have a date with the local apple service partner -- in three weeks (it's holiday time in g.o. germany). Don't know what to tell him: Probably I'll need to go there with the screen to show them the entire scenario. Hopefully they (still) think it's a problem with faulty apple hardware (or system software) and replace the logic board.
But I'm still in hope! Is there anybody out there having an idea with what I could try next to bring back the love between my macbook and the lovely 215TW display?
greetings,
brutus banane

I have recently bough a new Macbook Pro 15.4", it worked first time with a Samsung Syncmaster 2493HM but after a few days the 'detect display' utility ceased to connect, then a short while after on start up I was getting a blank screen with a flashing folder with '?' on it, preventing me from booting up successfully.
I tried the reset p-ram, didn't work then I tried an archive install of OSX and that ironed out all the creases - for a day, there has been no flashing folders on start up but the Samsung has failed to be detected and this morning wouldn't work no matter how many restarts or cable disconnecting attempts.
So I called Apple helpline, told the guy what had happened, he mentioned to try the install discs again with the display connected to see of the MBP sent a signal to it, after choosing the language in the OSX installer, the display was once again recognized! I didn't have to proceed any further with the install discs so quit, reset and ejected the install discs and all seems well again.
For how long i wonder?
I have no idea of this will work for anyone else but it works for me at the moment.
Interested to see when and how this finally gets solved!
T.
Message was edited by: Tyke Tyler
Message was edited by: Tyke Tyler

Using TV as a display: Minidisplayport DVI RGB cable

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