High Resolution Displays

Dec 08, 2005 15:29

Today I got my laptop at work changed to something that supports 1400x1050 on a 287 mm wide screen (normal aspect ratio of 4:3). To my laptop I also have connected a 400x300 mm CRT monitor which supports up to 2048x1536 at 85 Hz.

A bit of math tells me that

1400dots * 25.4mm/inch / 287mm = 123.90 dpi
400mm * 123.90dpi / 25.4mm/inch = 1951.18 dots

My monitor actually supports a resolution of 1920x1440, giving me the best dpi match I've had since I started doing Xinerama.

What my monitor does is:

1920dots * 25.4mm/inch / 400mm = 121.92 dpi

Given that I can't use all the reported visible area on a CRT it actually is an even better match than the numbers speak of.

The big deal about the dpi matching is that fonts don't become bigger/smaller as I move windows from 1 screen to another. Also, also my font sizes and settings look equally good on both screens.

OTOH, a typical 17" LCD monitor which does 1280x1024 is usually 345 mm wide.

That gives:

1280dots * 25.4mm/inch / 345mm = 94.23 dpi

I am working at a 30% higher resolution than what is most common. When I say resolution I mean dpi and not just monitor screen pixel area.

One of the things that vi users say is lacking in emacs is support for anti-aliased fonts. I can't help concede that point.

However once you move your life to 123 dpi things change.

If you ever get a chance to use a 123 dpi screen, try this:

emacs -r --font "-*-bitstream vera sans mono-medium-r-*--*-*-100-100-*-*-*-*"

Now do you still really need AA? :D

Also, Serif fonts begin to start looking usable at these resolutions as well. At low dot resolutions Serif fonts like Times New Roman look a bit blurred.
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