Macbook 1080p on LCD 1080p

[riise]

I have the new Toshiba 37x3030D - it runs 1080p native. I also have an Macbook Intel Core Duo. The connection is: miniDVI -> DVI -> HDMI.

When I connect the TV, SYSPrefs offers me an resolution of 1920x1080i on the Toshiba LCD TV. And that's the max resolution I can choose. If choose this one, the extended desktop is cut off - both on top, bottom, left and right.

1) What is the explanation to this, and what can I do about it?

2) How can I run 1080p from my macbook?

Thanks

[kel101]

is there a difference betweeen 1080i and 1080p??

[crackmac]

In the display preferences (options tab I believe) turn off Overscan

This will bring the entire screen into view but usually make it too small. I believe the next steps require a program called DisplayxConfig and some trial and error.
Check this article out for a similar step by step instruction.
http://www.macosxhints.com/article.p...60319073027371
or
http://www.jwardell.com/info/minihtpc.html

Quote: Originally Posted by riise I have the new Toshiba 37x3030D - it runs 1080p native. I also have an Macbook Intel Core Duo. The connection is: miniDVI -> DVI -> HDMI. When I connect the TV, SYSPrefs offers me an resolution of 1920x1080i on the Toshiba LCD TV. And that's the max resolution I can choose. If choose this one, the extended desktop is cut off - both on top, bottom, left and right. 1) What is the explanation to this, and what can I do about it? 2) How can I run 1080p from my macbook? Thanks

[riise]

I solved it by using the overscan function on the TV - so now I'm running pure 1920x1080p over DVI. It's picture perfect.

Thanks!

[rajb245]

I wrote up a little tutorial about this in my blog:

http://rtfm-nub.blogspot.com/2007/08...f-macbook.html

Enjoy, feel free to leave comments.

[Quantumstate]

Be advised that the Mac puts out both analog and digital out the DVI port. The DVI->HDMI adapter sends pure digital all the way to the TV, so there is no such thing as 1080i and 1080p. (interlaced or progressive) Digital is mapped bit-for-bit. This is why your picture is so clean.

Overscan was your only problem.

But nobody should buy anything except a projector. I have an HD projector shining on a 10' screen for TV. Makes life worth living. No need to spend $3,000 for a screen either... I bought a sheet of formica from Home Depot for $74 (5' wide, ice-white) and cut it into a 16:9 aspect ratio. Bought some 2" baseboard, spray-glued black felt to it and fastened it around the formica as a frame. Bought some bulk velveteen (dark royal blue) for curtains top and sides. Spectacular! Only thing I'd do differently is make my screen 15'. AVScience.com

[rajb245]

Quote: Originally Posted by Quantumstate Be advised that the Mac puts out both analog and digital out the DVI port. The DVI->HDMI adapter sends pure digital all the way to the TV, so there is no such thing as 1080i and 1080p. (interlaced or progressive) Digital is mapped bit-for-bit. This is why your picture is so clean.

I have to disagree with your statement that there is no 1080i or 1080p difference with this setup. While a agree that the link is in fact digital all the way from PC to TV, why do you think that digital formats can't be interlaced and progressive? Just for example, the majority of digital broadcasts over cable (DVB-C) are broadcast in 1080i today. These are MPEG2 transport streams (all digital) which are in an interlaced format. My cable box decodes MPEG2 into a series of 1920 x 1080i frames, then outputs these over HDMI digitally as a 1080i signal. Its not necessary that HDMI or "digital" be a "bit for bit" signal of the whole screen, although in this case it is bit for bit for HALF of the screen.

If you still don't believe me, check out the blog from my last post above for some screen shots showing that the Macbook has a setting called 1920x1080 (interlaced). You can verify yourself that there IS a difference and that the Macbook really is sending 1080i by using the following website:
http://www.tigerdave.com/test_patterns.htm
At the bottom he has a 1920x1080 test pattern. If you put this at fullsize (unscaled) on your TV, then move around the window by dragging, you'll see that the 1080i signal makes your screen flicker VERY badly because of the way your TV interpolates at this high spatial frequency. Put it in 1080p, and these flicker-on-motion artifacts go away.