PrusaSlicer 2.9.0 Debian/Linux does no  

RE: PrusaSlicer 2.9.0 Debian/Linux does no

Did you run the two commands mentioned in the dialog box from the screenshot? This would set up the environment variables that are necessary.

If you do not want to start PrusaSlicer from the command line every time, you could copy the file
/var/lib/flatpak/app/com.prusa3d.PrusaSlicer/x86_64/stable/active/export/share/applications/com.prusa3d.PrusaSlicer.desktop
into the directory ~/.local/share/applications/, then log out from your desktop and log in again. After that PrusaSlicer should be integrated into your application menu, probably under "Graphics".

RE: PrusaSlicer 2.9.0 Debian/Linux does no

Yes off course I did, but without success.

I created every locale possible...even this did not help. Could it be a problem with uppercase/lowercase?

The debian system created ????.utf8 with no dash "-" and the PrusaSlicer expects ???.UTF-8 in uppercase with a "-" dash.

RE: PrusaSlicer 2.9.0 Debian/Linux does no

The output of "locale -a" gives me:

C
C.utf8
de_DE.utf8
en_GB.utf8
POSIX

The content of the file /etc/default/locale on my system is:

LANG=de_DE.UTF-8

The former are locale files (all are listed in /usr/share/i18n/SUPPORTED) and the latter is an environment variable. That accounts for the difference in upper/lower case.

The command "flatpak run com.prusa3d.PrusaSlicer" starts the slicer without problems on my system (debian unstable).

RE: PrusaSlicer 2.9.0 Debian/Linux does no

Exactly the same here.

I am using "Linux debian 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22) x86_64 GNU/Linux"

RE: PrusaSlicer 2.9.0 Debian/Linux does no

I don't think that the kernel version has an impact on this.

You could try to set the environment variable first with this:

export LC_ALL="de_DE.UTF-8" && flatpak run com.prusa3d.PrusaSlicer

RE: PrusaSlicer 2.9.0 Debian/Linux does no

You can also set environment variables for specific flatpak apps with Flatseal:

RE: PrusaSlicer 2.9.0 Debian/Linux does no

sudo dpkg-reconfigure locales

and then ensure to select en_US.UTF-8

also please run

cat /etc/os-release

so it shows more details about the operating system.

RE: PrusaSlicer 2.9.0 Debian/Linux does no

Posted by: @walter-layher

You can also set environment variables for specific flatpak apps with Flatseal:

Thanks a lot, this works perfectly.

RE: PrusaSlicer 2.9.0 Debian/Linux does no

As a follow-up to the flatpak PrusaSlicer on debian: I had a few crashes of the app when opening an existing project and the app opening showing just an empty space on the plater tab. I then managed to get the source compiled on my system, so no need for the flatpak package anymore for me. If anyone should run into similar problems with the flatpak package, I can provide more details.

RE: PrusaSlicer 2.9.0 Debian/Linux does no

For anyone wanting to try I got it compiling  on my Debian stable install  - just following the instructions at (though it took a while)

https://github.com/prusa3d/PrusaSlicer/blob/master/doc/How%20to%20build%20-%20Linux%20et%20al.md

I didn't bother trying Flatpack

RE: PrusaSlicer 2.9.0 Debian/Linux does no

On my system the compile ran into the error described in this github issue: https://github.com/prusa3d/PrusaSlicer/issues/13560
The solution for me was following the instructions in the second post there.