Connection to LCD TV - DVI and VGA

Trying to link my MacBook to my Samsubg LCD TV but it's proving more problematic than I thought. Using a straight DVI-I connection, a decent image appears onscreen although the edges of the screen are cut off uniformly all around. I've tried inputting a custom resolution using DisplayConfigX but that doesn't seem to solve the problem. Whatever resolution I put in there is still the same cut off.
I've tried using the VGA port on the back of the Samsung using a DVI-VGA converter, but the LCD cannot pick up a signal at all, even though the MacBook recognises the display.
Any ideas on how I can solve either problem? Many thanks.

Ok, so I don't know if you are using just a normal converter and connecting it to what port or if you are using the mini-DVI port on the MacBook and connecting an Apple Mini DVI-VGA adapter to it and then having it connect to your TV (or how you did a straight DVI-I connection to the TV)...
After looking at some of the adapters being sold by Apple on this website, it appears that the Mini DVI-VGA Adapter is a DVI-D type to VGA adapter, which I have no idea what this means for the mini DVI port (do they have D or I types for the mini port?)... But this might affect the use of a straight DVI to DVI cable (I'm assuming you would still need
an adapter of sorts to get it to plug into the mini port) and these they do have (mini-DVI to DVI adapters that are the DVD-D type).
Hmm. Also, many people in their reviews were complaining that the adapters were the not common DVI-D version type, and I am guessing this must be that most LCD or Plasma TVs with DVI ports on them are the DVI-I type, while for computer monitors and the DVI ports on most Graphics cards are, from what I saw pre-Christmas while deciding on 2 different Graphics cards with DVI ports and 2 (also) different Widescreen LCD Monitors with DVI ports on them, that most computer related DVI ports are the DVI-D type.
This in mind, it seems the "D" version type could possibly stand for "Deblocking" and the "I" version type for "Interlaced" (just taking a wild stab in the dark, I have no idea if this is correct) and that the "D" is slightly less quality than the "I" type like maybe comparing a 720p HDTV to a 1080i (or p) HDTV...
So let me know what cables and port types you are using exactly (or have available) as well as the corresponding Adapters that you might need, and we should be able to get you set up correctly.
Also, remember that the Display Settings may have to be changed when input is giong to your TV and that there should be the option of using the TV (as second display) as a mirror of your MacBook screen or as an extension of it. With Windows, you could also decide which display you wanted to be your default display (you could choose the TV or monitor as this instead of the MacBook screen) but I don't know if OSX can do this or not as I have never used a Second or Dual Displays with OSX (and only once with Windows).

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using DVI and VGA monitor simultaneously on MacPro!
2008 MacPro - running the latest Yosemite
for the last few years, I've had two monitors attached - both DVI monitors in the DVI port.
today, one of the two monitors died on me! Just wouldn't turn on.
As it happens, I also have an older VGA monitor. So, this evening I bought a VGA-to-DVI adaptor.
when I plugged it in, something buggy happened ... the image was fine at the first, but then for a while, the active application started flashing off & on, it flashed between the image of the APP and a white panel... just the active APP. the background apps looked fine.
now it seems to have stopped .. .but I fear it may come back?
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Hope it doesn't come back. right now I'm in safe start-up mode, I'll see what happens when I run normal start-up mode tom'w morning.
thanks for any feedback / insight!
will

this is all the info from ABOUT THIS MAC
I believe the video card is the original from 2008 - I don't think I've changed that since the machine was new :
ATI Radeon HD 2600 XT:
Chipset Model: ATI Radeon HD 2600
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: ATI (0x1002)
Device ID: 0x9588
Revision ID: 0x0000
ROM Revision: 113-B1480A-252
EFI Driver Version: 01.00.252
Displays:
SyncMaster:
Resolution: 1280 x 1024 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number: HCJX844788
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
LCD19D(TMDS):
Resolution: 1280 x 1024
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number: WCCE5100535
Mirror: Off
Online: Yes
Rotation: Supported
thanks again!
minor update: I went back to the DVI monitor, using another 12V AC cable, and it seemed to work, but then that one just started flickering (after being on for an hour or so...) the flickering stopped after a few minutes, but something tells me that I'm not out of the woods yet...
w

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Message was edited by: barndoor34

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