Description of problem: Version-Release number of selected component (if applicable): Problem: when enable subpixel in gnome-tweaks, the default rendering config will not work well as other Linux. Temporary Resolve: copy those files to this directory /etc/fonts/conf.d/ */usr/share/fontconfig/conf.avail/10-sub-pixel-rgb.conf */usr/share/fontconfig/conf.avail/11-lcdfilter-default.conf I hope packcage maintainer could change those files intend put them on right place.
Hi, you have to be more specific. "Will not work well" is too general. Is the issue about how the subpixel rendering look once enabled? Or is it an issue with enabling it? In this case it should be reported against the gnome-tweaks tool. It would be also helpful to know which window manager you use and in which application you reproduce the issue. Regards
Created attachment 1754770 [details] English website that show this bug
Created attachment 1754772 [details] Chinese website that show this bug
Created attachment 1754776 [details] temporary fixed English website
Created attachment 1754777 [details] temporary fixed Firefox UI
The real issue there is not the subpixel filter (both the "good" and the "bad" images appear to apply the same filter there), but the hinting settings.
I downloaded some package from dnf, Those files belong to "fontconfig". To resolve this bug may need to change the build config of rpm or Makefile of software.
GNOME (or gnome-tweaks) should have own default value for sub-pixel rendering. those config is written like respecting it. So if they change something after copying them into /etc/fonts/conf.d, that may means they have some problem to enable it. and I'm afraid I can't make it off hand because that may also means it will take effects on all the desktops for users. We need more observation for that change and need to change the default value on each desktop environments too if it is really best.
I think the best way is to install debian or opensuse on VirtualBox and enable subpixel in their gnome-tweak and watch them
I just installed latest Arch Linux with GNOME Desktop, It has this problem too. But the first half of 2020 of Arch linux does not have this problem, all font rendering is well.
According to "when enable subpixel in gnome-tweaks" in the original comment, there might be something wrong in gnome-tweaks or around. reassigning to gnome-tweaks so far. as it also says "Temporary Resolve" there, it isn't a bug in fontconfig.
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