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In System → Preferences → Appearance → Details, we can change the value of dpi
for rendering fonts.
By default, it's 96.
The first thing is there should be 2 values : horizontally and
vertically (pixels are not always square).
About my screen, I have 129dpi horizontally and 133dpi vertically, according to
xdpyinfo
$ xdpyinfo | grep resolution
resolution: 129x133 dots per inch
To know which of gnome or xdpyinfo was right, I checked : my screen has a
diagonal of 15,4', with a resolution of 1680×1050 (16:10).
So 16a² + 10a² = 15,4² (pytagor), and we conclude that width=16a≈13,06'.
1680/13,06=128,64≈129, so xdpyinfo was right.
I saw several bug reports about this, with «fix released». I use a fresh
install of Ubuntu 8.04.1, so it doesn't seem resolved.
But setting to the right value (129) would be a bit disturbing : in that case,
I have to set all my fonts to size 7 !
In gnome settings, I set all fonts to 7, it's ok, but I have to do the same in
all non-gnome application (which usually use font-size 10).
Moreover, some websites use mixed 'pt' and 'px' unit, where 'pt' depends of dpi
(1pt=1/72 inch), and 'px' doesn't, so setting the right value would have some
impacts.
What do you think about that?
** Affects: gnome-desktop (Ubuntu)
Importance: Undecided
Status: New
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wrong dpi value for rendering fonts
https://bugs.launchpad.net/bugs/253072
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