Macbook Pro *thinks* it's mirroring video to my tv via DVI but....
...it's not.
The Players:
A) It's an older Macbook Pro running OSX 10.4.11. The screen is not backlit, but if I shine an LED flaslight obliquely at the display, I can just make it out, so it's still booting and everything's there.
B) TV is an LG plasma made in 2010. I've output video to my tv through vga using other laptops before.
C) The dvi cable & dvi-to-vga adapter are both spank'n new.
The Saga:
DVI & said adapter are plugged into to the Macbook and the tv respectively.
I go into OSX's Display Preferences and Arrange the displays, and click turn Mirroring On. OSX recognizes the tv as an LG, and everything. OSX thinks everything's A-OK.
My tv, however, asserts that there is NO SIGNAL coming in its RGB-PC input. TV conveniently "grey's out" the ports which have nothing connected to it in its Input menu, and this one is is not; it is able to be selected which tells me the tv knows on some level that something's there.
This isn't some deep-seeded PC/Apple/LG compatibility issue, is it?
Cables seem securely connected.
Initial web searches are unproductive.
What do you all think, Icrontic?
[Edited for increased clarity.]
The Players:
A) It's an older Macbook Pro running OSX 10.4.11. The screen is not backlit, but if I shine an LED flaslight obliquely at the display, I can just make it out, so it's still booting and everything's there.
B) TV is an LG plasma made in 2010. I've output video to my tv through vga using other laptops before.
C) The dvi cable & dvi-to-vga adapter are both spank'n new.
The Saga:
DVI & said adapter are plugged into to the Macbook and the tv respectively.
I go into OSX's Display Preferences and Arrange the displays, and click turn Mirroring On. OSX recognizes the tv as an LG, and everything. OSX thinks everything's A-OK.
My tv, however, asserts that there is NO SIGNAL coming in its RGB-PC input. TV conveniently "grey's out" the ports which have nothing connected to it in its Input menu, and this one is is not; it is able to be selected which tells me the tv knows on some level that something's there.
This isn't some deep-seeded PC/Apple/LG compatibility issue, is it?
Cables seem securely connected.
Initial web searches are unproductive.
What do you all think, Icrontic?
[Edited for increased clarity.]
0
Comments
Have you tried it without mirroring, by chance?
FWIW, I've gotten all the above working before with an MBP -> DVI-to-VGA dongle -> VGA cable -> Westinghouse HDTV, both MBP and HDTV circa 2009. So, it's possible with that combination anyway. Which, of course, says nothing about an LG HDTV
Had some family issues recently but all settled. Thank you very much for the response; I just haven't been home to try this way. I should be doing by this evening and I'll edit my post to update with the results. I just didn't want you to feel like you were posting into a black hole.
Thanks for your time and effort!
Didn't see before you used a dongle. I've never used one before. You connected it the vga cable? I thought dongles were wireless? I've managed to get ftp access to the MbP from my other laptop so I yanked the necessary files, but it's still a better machine than paperweight.
If you could elaborate more on the dongle...
(Never thought I'd say that... :P )
http://www.amazon.com/Apple-Mini-DVI-VGA-Adapter/dp/B002JEWX5U
which is presumably similar to what you already have.
No.
No no.
My hardware looks like this. They're not, ya know, not Jobs-inatd. They're just... cables.
Also, crap on me. I meant SVGA. Wow. This could be part of the trouble.
https://discussions.apple.com/thread/1910047?start=0&tstart=0
Seems relevant below:
Thanks for checking the Apple forum for that; I never stopped to consider it an Apple issue since the computer seemed to be the only thing working!
I am going to have to take a trip back to Radio Shack to return my larger sized DVI and get the mini-one, (maybe online if RS doesn't carry it).