I know it is not an officially supported package, but it just too nice to have.

Have been struggling with it for a while, almost gave up. Now I am stuck with 2.3.1 (the previous version). You can run calibrations with it, slice a Benchy, but no more than that. Anything bigger just crashes Orca.

Before that I tried 2.3.2 (the current release). Whichever way I installed it (AppImage, Flatpack, AUR), it just kept freezing the system every time I tried something bigger than a test cube. It was awful. Same thing with nightly builds and unstable.

I almost though something is wrong with my hardware. Not until I booted into Mint live USB, and installed Orca from their App Store. And lo and behold, even their behemoth flatpack just worked out of the box. I was able to slice a fairly big model at 0.16mm layer height. All this while running from RAM!

The question is: what gives? Is it Orca + Wayland? But Ubuntu and Mint are both transitioning to Wayland.

Hi fauve!

From my personal experience: wayland is not the most stable thing. Caused me a lot of headaches. Finally tried x11 and suddenly everything works. I wouldn’t be surprised if it might help you too.

You can try it without risk, and switch back if you don’t like it. Just run:

sudo pacman -S kwin-x11 plasma-x11-session

log out, and there should be the option between wayland and x11 in the lower left corner of the login screen. just try it with x11 and see if that helps.

1 Like

fauve

April 22, 2026, 3:29am 3

Thank you so much. Works perfectly under X11.