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This is a real crock, it's terrible. Microsoft's own applications don't even scale properly - and fonts can't scale at all. I use a Surface Pro @ 1080p and two external displays @ 1080p and fonts are blurry in apps like Windows Explorer, Outlook, Word, because the font scaling is so horribly broken. I don't understand why they can't fix this.

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I don't think it's font scaling. It's a fundamental change to the font renderer. Basically, subpixel rendering is gone and it's all grayscale.

http://answers.microsoft.com/en-us/ie/forum/ie10-windows_8/w...

I've not played with 8.1 yet, but hopefully it's been addressed.

Subpixel rendering makes no sense on a tablet where the direction of the subpixels changes from landspace to portrait mode.

Couldn't the subpixel hinting change too?

You can, but the point of subpixel rendering is increasing effective resolution, and for English text, horizontal resolution is more useful than vertical resolution. See: https://www.grc.com/ctwhat.htm.

It's not just English text, it's virtually every written language. There are very few that use a vertical orientation, and fewer still that use only a vertical orientation.

Hebrew, Georgian and Arabic all benefit equally from sub-pixel resolution. Even vertical Chinese would be improved by having more detail on each character.

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