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[Bug 2017573] Re: Font hinting broken on 23.04

 

@mgiammarco: I'm not a font expert, so this discussion is a bit over my
head, I think. Nevertheless I miss some basic information which I
believe is necessary to understand the nature of your observation:

* Which are your effective fontconfig settings?
* Which font(s) are not rendered as you would expect?

As regards the default RGB settings, they were changed in 23.04 in all
other flavors but Kubuntu. Kubuntu already had the symlink

/etc/fonts/conf.d/10-sub-pixel-rgb.conf

by default, while other flavors had no sub-pixel rule. In 23.04 10-sub-
pixel-rgb.conf is default in all flavors.

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https://bugs.launchpad.net/bugs/2017573

Title:
  Font hinting broken on 23.04

Status in fonts-ubuntu package in Ubuntu:
  Confirmed

Bug description:
  Just upgraded my laptops to Kubuntu 23.04 Lunar Lobster and hinting
  for all non-commercial fonts seems broken. I used to have decent if
  not perfect hinting on Ubuntu and Ubuntu Mono font, but now the only
  fonts that still hint correctly are Microsoft's Verdana and Tahoma
  etc. Not sure whether the devide is exactly along this line, but it
  stands out.

  Tried regenerating font cache (fc-cache -rv) but that didn't help.

  Operating System: Kubuntu 23.04
  KDE Plasma Version: 5.27.4
  KDE Frameworks Version: 5.104.0
  Qt Version: 5.15.8
  Kernel Version: 6.3.0 (64-bit)
  Graphics Platform: Wayland
  Processors: 8 × Intel® Core™ i7-10510U CPU @ 1.80GHz
  Memory: 31.1 GiB of RAM
  Graphics Processor: Mesa Intel® UHD Graphics
  Manufacturer: Notebook
  Product Name: N141CU
  System Version: Not Applicable

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