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iMac G4 + High Res Monitor
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Mac Enthusiast
Join Date: Dec 2000
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I've got a G4 iMac here, and am planning to get a 23" Philips LCD for use with it (not as a primary display, casual use), however the LCD's native resolution is 1900x1200 and the iMac's maximum video output is 1024x768. What will happen if I try to drive the LCD with it? I can see two possibilities, either the picture is stretched, or it ends up with black bars on its side (or worse, the picture has black bars on all sides).
I can't imagine the stretching thing working too well give then the screens are different aspect ratios (4:3 vs. 16:10). Anyone with experience with big screens and iMacs care to elighten me?
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Professional Poster
Join Date: Jun 2002
Location: Minneapolis, MN
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You might be able to do it, but it requires a hack to work. In its standard configuration, no iMac can do monitor spanning. All it can do is mirroring at the same resolution as the built in display.
You said that your monitor's resolution is 1024x768. That means you have a 15" iMac. The only 15" iMac that can be hacked to support monitor spanning is the 1 GHz model. If you have an 800 MHz or lower model, it will not work and you shouldn't buy that LCD.
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"That's Mama Luigi to you, Mario!" *wheeze*
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Mac Enthusiast
Join Date: Dec 2000
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I am aware that it will only do mirroring, I just would like to know how the picture will turn out on the display, whether it will be stretched or have black borders or what.
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Mac Elite
Join Date: Dec 2002
Location: Bay Area of San Jose
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Wouldn't you be able to resize it via the controls on the lcd?
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Dedicated MacNNer
Join Date: May 2004
Location: Australia
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It is most likely that it will be stretched. On your iMac drop the internal LCD's resolution down to something like 640x480 to see what it does - it makes everything look quite blurry.
Unless your iMac can use the screen spanning hack, don't get anything bigger than a 15" LCD which has a resolution of 1024x768. Even a 17" LCD will look silly as it has a native resolution of 1280x1024.
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MBP 2.16ghz 15"
iMac G5 1.6Ghz 17"
Powermac 7200/120
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Mac Enthusiast
Join Date: Dec 2000
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Thanks for the replies; after re-considering it I've decided not to go with a HUEGE LCD, but a projector. Bigger picture + cheaper. Win. 
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Admin Emeritus  Join Date: Oct 1999
Location: Zurich, Switzerland
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