Arch Linux User Repository

Confirmation that N0id workaround for wayland/sway works by setting QT_QPA_PLATFORMN=xcb in cura.sh works as of 5.0.0-2

Just in case someone has the same problem running wayland/sway. I also had to set QT_QPA_PLATFORM to xcb. Fixed it via patching cura.sh:

FIXUPS="LD_PRELOAD=/usr/lib/libstdc++.so.6 QT_QPA_PLATFORM=xcb"

First of all, thank you for the patches. Setting QT_QPA_PLATFORMTHEME is not needed as per https://github.com/Ultimaker/Cura/issues/12266#issuecomment-1184391263. And it's probably better to keep checksum for included file.

This patch rolls the workarounds from @ozz and @carlos.m into /usr/bin/cura:

diff --git a/PKGBUILD b/PKGBUILD
index 5f58e5c..47c3c39 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -11,7 +11,7 @@ pkgdesc='Ultimakers 3D printer / slicing GUI built on top of the Uranium framewo
 arch=('x86_64')
 url="https://ultimaker.com/software/ultimaker-cura"
 license=('LGPL3')
-depends=('fuse2')
+depends=('fuse2' 'xdg-desktop-portal')
 provides=('cura')
 conflicts=('cura' 'cura-appimage-git' 'cura-appimage-bin')
 options=(!strip)
@@ -25,7 +25,7 @@ source=(

 sha256sums=(
     "ec00f8e42a46fd24cd71e098fa713a08be4e2bcc6df17d5d02938bc6ea315754"
-    "6430e6359ff98b7c6a209181c389cfc606d1e84628793a4eb772c5e2f0d0a23f"
+    SKIP
     "6c1b54af7077ca101cca099f40d9627d6d69e9b11a5a6ae0667e118d764dc903"
 )

diff --git a/cura.sh b/cura.sh
index 21f8479..005b73f 100644
--- a/cura.sh
+++ b/cura.sh
@@ -3,11 +3,12 @@
 # For easier maintainability
 CURA_VERSION="VERSION_PLACEHOLDER"
 CURA_BIN_PATH="/opt/Ultimaker-Cura/Ultimaker-Cura-$CURA_VERSION.AppImage"
+FIXUPS="QT_QPA_PLATFORMTHEME=xdgdesktopportal LD_PRELOAD=/usr/lib/libstdc++.so.6"

 # Get full path to avoid Error Message in cura 
 [[ -n $(dirname "$1") ]] && filePath="$(realpath "$1")" || filePath="$1"

 # Start cura-appimage without Parameter if not given. ( Avoiding cura Error Message "No file found" )
-[[ -z $filePath ]] && $CURA_BIN_PATH || $CURA_BIN_PATH "$filePath"
+[[ -z $filePath ]] && ( eval ${FIXUPS} $CURA_BIN_PATH ) || ( eval ${FIXUPS} $CURA_BIN_PATH "$filePath" )

 exit

I got the file dialogs to work by installing xdg-desktop-portal-gtk (I run XFCE). Then I have to run Cura like:

QT_QPA_PLATFORMTHEME=xdgdesktopportal LD_PRELOAD=/usr/lib/libstdc++.so.6 Ultimaker-Cura-5.0.0-linux.AppImage

You may have to reset dbus (or reboot) after installing the xdg portal. See the Cura bug report here for more information.

By using LD_PRELOAD=/usr/lib/libstdc++.so.6 cura and this package, pretty much everything works fine for me, including file dialogs and settings. Only thing that didn't work (and I did not miss at all) is the sign in/create ultimaker account, which fails with:

XPCOMGlueLoad error for file /usr/lib/firefox/libmozgtk.so:
/usr/lib/libcairo-gobject.so.2: undefined symbol: g_memdup2
Couldn't load XPCOM.

With the latest Arch updates this no longer works at all due to external DRI libraries requiring a newer libstdc++ than what is in the AppImage. You can override this with:

LD_PRELOAD=/usr/lib/libstdc++.so.6 Ultimaker-Cura-5.0.0-linux.AppImage

File dialogs still don't work.

Why does the package conflict with itself? Pacaur refuses to install it because of that

The File dialogs don't work for me for some reason. File->Open File shows nothing. Save, whatever, no dialogs ever appear. Cura 4 works fine.

Edit: Now that I think about it, I don't think it worked in Ubuntu with Cura 5 either so I should probably talk to the Cura folks.

Yeah, thanks for the heads-up. I just noticed I pasted the wrong issue. The AppImage stats fine for me.

I was referring to this issue: https://github.com/Ultimaker/Cura/issues/11874