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ROTAVATOR: manual rotating LCD

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Blanka:

If I read that specs it's pretty 1280x1024, and thus 5:4!
They really should offer any of the 21.3 inches in a cabinetmount. These screens are really kick ass. 1:1000 contrast and 178/178 viewing degrees.
About the centering of the VESA mount, as these consumer 21.3 inches all pivot, they have centered mounts too.
Does anybody have a link to the designer of the motor-rotated mame video yet?

Zobeid:

Hmm, interesting point. . .

Pixels are not always square, so the only way to be sure is to measure the screen itself.  According to my tape measure:

14.75" X 11.75" = 1.25 = 5:4

Yep.  That's a surprise.

I'm totally puzzled now.  It looks normal to me.  The only aspect ratios I've ever heard about are 4:3 (NTSC), 16:9 (ATSC) and 16:10 (widescreen computer monitors and some HDTVs).  I've never heard of a 5:4 monitor before.  I had no idea I had something so odd.

I tried messing with some settings in MAME to see if I could get it to display an actual 4:3 image, but no luck.  What's going on here?

UPDATE:  It's SXGA.  See here. . .   http://en.wikipedia.org/wiki/SXGA

I'd never encountered this before.  I found the key is to set Windows resolution to the actual native resolution of the monitor, to 1280X1024.  After doing that, MAME began displaying its games in true 4:3 with a very narrow black border at the top and bottom.



Ummon:

Yeah, that's a helpful figure, isn't it? Hence, most monitors haven't really been 4:3 for a while. Here's the page I found. What's interesting is it shows 2048x1536 as 4:3 and my PC monitor here does both. You can tell the difference though by paying close attention to the width. Even in pictures, you can tell the width on older PC monitors, and especially TVs, is that much more than on some later model PC CRTs. I had a '99 or '00 Gateway or something, and it just looked wider than my Dell Trinitron. Well, it was.

As for the borders in Mame, just deselect 'autoselect aspect' in the screen tab.

Blanka:

And there is a zillion of non-square pixel standards as well.
The image on Wikipedia is not correct. CGA and NTSC are 320x200 and 720x480, but they ARE 4:3. So their pixels are non-square. Also with new plasma's, they are 1080x1024 pixels,  but they ARE 16:9. The pixels are almost twice as wide as high.

mrclean:


--- Quote ---Let's say I am browsing my list with the monitor horizontal.  All the horizontal and vertical games are mixed together in the same list, I don't worry about that when I'm browsing.  So I pick, for example, Pac Man. . .   The game starts up, and then I suddenly realize everything is sideways on the screen.  I reach up to the big handle and whang it around to the vertical position -- takes about three seconds.

When I get tired of Pac Man and exit, Mala automatically switches to vertical layout, and I can continue browsing without having to push any buttons or change the monitor.  It's perfectly convenient.  I've read comments from a few guys with a rotating monitor rig, who said after the novelty wore off they didn't even rotate it anymore; they just ran everything horizontal because rotating was too much hassle.  I can't imagine that ever happening with this cabinet.
--- End quote ---


Ahh how do i do this with MaLa what settings do i need to use etc I got MAME to automatically rotate

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