What does 1024x768X24 mean?

Posted by emersonhsieh on Ask Ubuntu See other posts from Ask Ubuntu or by emersonhsieh
Published on 2012-06-02T04:34:31Z Indexed on 2012/06/02 4:49 UTC
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12.04

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screen-resolution

I was planning to change the Plymouth screen resolution(Blame Fglrx!).

When I went to GRUB-Customizer(info for that), the screen resolution menu shows (as usual) 800x600, 1024x678, 600x400, and a bunch of other things.

But after I scrolled down, I saw weird screen resolutions like 1024x768 x8, 1024x768 x16, 1024x768 x24, etc. Computer screens shape like a rectangle, not a cube, so what does those extra numbers mean? Or is there a secret dimension in every computer screen that I ignored?

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