Font rendering and blurry fonts


something changed between F24 and F26 (even F25) regarding font
rendering and I can't figure out what it is. On F24, fonts were crispy
clear with full hinting and antialiasing. On F25+, fonts are quite
blurry even with the same hinting and antialiasing settings. I'm using
XFCE and didn't change any settings. I didn't upgrade, but reinstalled
F26. I would like to fix this because it's killing my eyes. Any idea
what has changed or what to install/remove/reconfigure to bring the
old rendering back?



Re: Font rendering and blurry fonts

By Tomasz Torcz at 08/10/2017 - 04:20

On Thu, Aug 10, 2017 at 09:25:41AM +0200, Jan Synacek wrote:
See bugs like

Bug 1470509 - freetype/harfbuzz fc25->fc26 turns to ugly rendering
<a href="" title=""></a>

Bug 1469712 - font antialiasing/hinting is not working on Fedora 26
<a href="" title=""></a>

Re: Font rendering and blurry fonts

By Jan Synacek at 08/10/2017 - 05:39

On Thu, Aug 10, 2017 at 10:20 AM, Tomasz Torcz < ... at pipebreaker dot pl> wrote:
Cheers, the solution from #1470509 did the trick. I'm quite puzzled as
to why people prefer looking at the blurred fonts, though.

Thanks again,

Re: Font rendering and blurry fonts

By Matthew Miller at 08/10/2017 - 10:04

On Thu, Aug 10, 2017 at 11:39:30AM +0200, Jan Synacek wrote:
I don't prefer blurred fonts, but I prefer more-correct letter forms
and nicer overall appearance of the page.

Re: Font rendering and blurry fonts

By Jan Synacek at 08/10/2017 - 11:36

On Thu, Aug 10, 2017 at 4:04 PM, Matthew Miller
< ... at fedoraproject dot org> wrote:
Yes, I agree, but that's not what I see on my screen. Even if what I
see is "more correct" by some measure, it's still blurry and hurting
my eyesight. On the other hand, I totally understand that on some
people's displays the result might actually look better. Also, my eyes
are quite picky when it comes to staring at stuff for long periods of

Re: Font rendering and blurry fonts

By Ahmad Samir at 08/10/2017 - 15:55

On 10 August 2017 at 17:36, Jan Synacek < ... at redhat dot com> wrote:
Tangentially to this discussion, I find a lot (most) of the new fonts
(e.g. web fonts, which are really a huge variety, just look at just look awful on PC screen; so on my PC, they do
look very nice shape-wise but the blurry/jagged edges do nag at me too
much be usable. That's why I stick to the DejaVu Sans and Ubuntu font

But then using those "new" fonts on my Android smartphone, they look
great/awesome. The difference is that my desktop has a 24 inch
monitor, 1920x1080 with 96-101 dpi, whereas my phone has a ~4.5/5 inch
screen with 720x1280 and ~294 dpi. So the secret lies with the dpi,
the higher the dpi the better those "new" fonts - which do not have
hinting done by hand (by the font artists/devs) like the old font
families (e.g. DejaVu Sans) had - will look. So I enjoy many more
fonts on my 5 inch phone than I do on my 24 inch monitor :/

I think the solution to the problem will come when Hidpi monitors
become more affordable, i.e. a 24/27/28 inch mointor that packs a 4K
resolution. (Hopefully that will happen before most of us are too old
to see clearly at all).

Re: Font rendering and blurry fonts

By Todd Zullinger at 08/10/2017 - 03:59

Hi Jan,

Jan Synacek wrote:
There was a similar thread on the users list a few weeks ago:

<a href=" ... at lists dot" title=" ... at lists dot"> ... at lists dot fedoraproject....</a>

Maybe the effects of the freetype v40 truetype interpreter is what
you're seeing and forcing the v35 interpreter as mentioned will help?