Hello everyone, found a partial solution. The problem is somehow related to the locales.
I did the following: * Go to Preferences / Advanced * In the Select Box for the language choose English (United States) and ensure that it is one top of the list * Ensure that Regional settings locale is selected for Date and Time Formatting * Restart Thunderbird After doing the Thunderbird UI will be in English, but the date picker will work again. The question now is: Is this an upstream bug or is a bug in the EBuild? Or something in the configuration of my system? Best Jens On 16.01.20 06:43, Jens Pelzetter wrote: > Hello Nicolai, > > the USE flags don't make any difference. Rebuild my Thunderbird without > all system-* USE flags and with bindist enabled. No difference. > > But I noticed some warnings related in the console which might be > related. I will check this today. > > Best > > Jens > > Am 15.01.20 um 23:20 schrieb Nicolai Beuermann: >> Am 15.01.20 um 17:42 schrieb Jens Pelzetter: >>> Hello Nicolai, >>> >>> one Fedora everything works as expected. But Fedora has a slightly older >>> version of Thunderbird and GTK. >>> >>> Which useflags has your Thunderbird set? Mine has the following useflags: >>> >>> dbus gmp-autoupdate lightning startup-notification system-av1 >>> system-harfbuzz system-icu system-jpeg system-libevent system-libvpx >>> system-sqlite system-webp >>> >> I have the same USE flags +jack +pulseaudio >> >> did you try thunderbird-bin? >> >> -- >> mailto: nicolai.beuerm...@gmx.de >> online: https://www.nico-beuermann.de >> >