Macbook Pro (mid-2007) + Vizio E370VL

I

ianfdlrs

Registered
Hi all,

I have a Macbook Pro from around the mid 2007's I believe. It is intel-based but has a similar body style as the Powerbook G4's.

I am trying to connect it to a Vizio E370VL tv. I will also note that I have my computer dual-booted via Boot Camp, running Windows 7 Home Premium, 32-bit.

When I boot into Windows, the picture on the TV mirrors my laptop, but the picture crawls/rolls/scrolls from bottom to top continuously. Even when I change the resolution, it makes no difference. UPDATE: I changed the resolution all the way down to 1024 x 768 and it finally stopped scrolling...if I go any higher, it starts to scroll. Video card issue?

If I boot into OS X, and the resolution is set to full HD 1920 X 1200, it is not supported (blank screen). 1920 x 1080 causes the same scrolling effect. If I drop it to 1600 x 900, the scrolling stops and the tv registers a resolution of 1440 x 900. I have to be able to use this with the Windows side for work. I am just unsure as to whether I have the wrong hdmi-to-vga adapter (borrowed this one...mine is on loan...but this one looks just like mine), if it is signal problem. Do I blame the TV or the computer? I updated the NVIDIA drivers on the Windows side, and that didn't make any difference yet.

Additionally, I have plugged in a Mac Mini, using a mini hdmi-to-vga adapter, running Windows XP, and the TV supports the full resolution.

Any ideas? I had thought about trying a DVI-to-HDMI cable.

Ian
 
1. Don't have ready access to one
2. For work so trying to be as cost effective as possible, so hadn't committed to buying one yet.

Any clue as how it would process the signal any differently than the to-VGA adapter. I almost picture it as the signal not being strong enough or something, and I didn't know if it would treat the HDMI cable/connection any differently.

Ian
 
ianfdlrs said:
If I boot into OS X, and the resolution is set to full HD 1920 X 1200, it is not supported (blank screen).
Click to expand...

Of course it isn't. Even the highest resolution HDTV known to man today only has a vertical resolution of 1080 pixels. Any higher than that, and one of three things will happen:

1) The TV will "scale" the picture back down to 1080 pixels in height.
2) The TV will "crop" the picture to a maximum of 1080 pixels in height.
3) The TV will refuse to display the picture.

The "native" resolution of your TV can be found somewhere in your TV's manual -- look it up, and then set your computer to output that exact resolution to the TV. Since your computer and your TV have different native resolutions and also different aspect ratios, you may never be able to output to your TV exactly what you see on your monitor in mirrored mode -- in this case, I recommend switching to "extended desktop" mode, where your computer will register the TV as an additional monitor and allow you to set the TV's resolution independent of the computer's monitor.

The "rolling" you're experiencing can be due to one of the following things, which you can adjust:

1) The resolution being outputted to the TV (see the paragraph above)
2) The refresh rate being outputted to the TV (typically between 60 and 75Hz)
 
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