blurred fonts

Adam Jackson ajax at nwnk.net
Tue Nov 29 11:39:29 PST 2005


On Tuesday 29 November 2005 09:46, julius Junghans wrote:
> Hi,
>
> every second line in apps like thunderbird, firefox, konsole and kopete
> the font looks blurred - tried several fonts.
> somebody from the freetype mailing list suggested that the vertical line
> pitch might be wrong.
>
> found a formula on this site:
> http://gentoo-wiki.com/HOWTO_Xorg_and_Fonts to calculate the
> widht/height from my tft (samsung x20)
>
> ...E.g. to use a dpi of 75 with a resolution of 1600x1200, the
> calculation would be 25.4 * 1600 / 75 = 542 and 25.4 * 1200 / 75 = 406,
> resulting in the setting DisplaySize 542 406....
>
> my tft is using 1400x1050, and should be:
>
> widht 474.13        used 474
> hight 355.6           used 356
>
> the log says:
> (II) I810(0): My Monitor: Using hsync range of 60.00-66.32 kHz
> (II) I810(0): My Monitor: Using vrefresh value of 60.00 Hz
> (II) I810(0): Not using mode "1400x1050" (no mode of this name)
> (--) I810(0): Virtual size is 1280x1024 (pitch 1280)
> (**) I810(0):  Built-in mode "1280x1024"
> (**) I810(0): Display dimensions: (474, 356) mm
> (**) I810(0): DPI set to (68, 73)
>
> ^- cant find these lines without using the DisplaySize parameter.
>
> got no font problems with xorg-6.8.2 and i810 from cvs (20050716), used
> 855resolution to get 1400x1050

Except you're still not running at 1400x1050, because as the log says, your 
screen's virtual size is 1280x1024.

If you'd force the screen size to 433mm by 347mm you'd be much closer to 
actual 75dpi.  But I expect it'll still look bad, because you're not using 
the native panel size of 1400x1050, so the panel will interpolate and defeat 
freetype's antialiasing.

Dear intel, users want working modesetting, kthxbye.

- ajax
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