Ok, I solved the problem. There were many coincidences playing a role in this report.
For starters the (real) regression in fonts-ubuntu triggered my attention, but unlucky testing against Liberation Sans revealed a change in hinting between fonts-liberation and fonts-liberation2, which wasn't installed on my reference system. fonts-liberation2 lacks proper hinting (which showed on my 23.04 system) but fonts-liberation is properly hinted (on the 22.04 machine). Once installed, fonts-liberation2 overrides all Liberation fonts, except for Liberation Sans Narrow. Removing fonts-liberation2 and downgrading fonts-ubuntu to fonts- ubuntu_0.83-6ubuntu1_all.deb seems to solve all the reported problems. My apologies for the noise. -- You received this bug notification because you are a member of Documentation Packages, which is subscribed to fonts-ubuntu in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fonts-ubuntu/+bug/2017573/+subscriptions -- Mailing list: https://launchpad.net/~documentation-packages Post to : documentation-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~documentation-packages More help : https://help.launchpad.net/ListHelp
