Created attachment 140519 [details]
KDE Plasma v5.22.4 fonts rendering issue for Gtk/GNOME applications
After the latest upgrade to plasma v5.22.4, fonts rendering/anti-aliasing not working anymore for Gtk/GNOME applications (e.g. GIMP, Inkscape, LibreOffice...)
STEPS TO REPRODUCE
1. Open any Gtk/GNOME application (e.g. GIMP, Inkscape, LibreOffice)
Fonts inside the application and menus are not properly rendered/anti-aliased. (see attachment)
Fonts should be displayed and rendered as for core KDE applications.
Linux/KDE Plasma: KDE Neon
(available in About System)
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.3
Is this happening in X11 or Wayland or both? If it's Wayland only, it would be a regression from the fix for Bug 438971.
(In reply to Nate Graham from comment #1)
> Cannot reproduce.
> Is this happening in X11 or Wayland or both? If it's Wayland only, it would
> be a regression from the fix for Bug 438971.
I've just tested and it happens in both X11 and Wayland
OK, thanks. Any chance you can test out 5.23? I recall a commit that fixed it there.
Unfortunately not, this is a production environment
Is there any particular reason why status of the issue is "NEEDSINFO WAITINGFORINFO"?
I mean, is there anything else I can provide from my side? It's pretty strange that nobody else confirmed this; did you manage to reproduce on your environment(s)?
I cannot reproduce the issue, no. I am pretty sure this is fixed already in Plasma 5.23, but please don't hesitate to re-open it if you find that it's still broken for you once you upgrade to 5.23. Then we can do some more investigation.
Update for KDE Plasma v5.23 - I can confirm that the issue is fixed but Anti-Aliasing configuration in System Settings > Appearance > Fonts need to be refreshed, i.e. disabled (and saved) than enabled (and saved) again for the fix to be visible.