I need to download firmware for my 3D printer (K8000) with Arduino IDE 1.0.6 since Arduino IDE 1.8.5 won't work. I downloaded Arduino IDE 1.0.6 from Arduinos' website. When I start Adruino IDE I get following: arduino-1.0.6]$ ./arduino Exception in thread "main" java.lang.ExceptionInInitializerError at processing.app.Preferences.setColor(Preferences.java:863) at processing.app.Preferences.init(Preferences.java:274) at processing.app.Base.main(Base.java:117) Caused by: java.awt.HeadlessException at sun.awt.HeadlessToolkit.getMenuShortcutKeyMask(HeadlessToolkit.java:236) at processing.core.PApplet.<clinit>(Unknown Source) ... 3 more arduino-1.0.6]$ I am running arduino on Fedora 28 Gnome Workstation with both Xorg and Waylnd. Same result in both. Now I started Debian (Jessie) in KVM/qemu from the virtual manual. There I could start Arduino IDE 1.0.6 without problem. Fedora 28 Gnome Workstation $ java -version openjdk version "1.8.0_191" OpenJDK Runtime Environment (build 1.8.0_191-b12) OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode) $ uname -a Linux lea 4.18.18-200.fc28.x86_64 #1 SMP Mon Nov 12 03:17:32 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Debian (Jessie) Gnome Workstation $ java -version openjdk version "1.8.0_151" OpenJDK Runtime Environment (build 1.8.0_151-8u151-b12-1~deb9u1-b12) OpenJDK 64-Bit Server VM (build 25.151-b12, mixed mode) $ uname -a Linux debian-01 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u5 (2017-09-19) x86_64 GNU/Linux Why can I run Arduino IDE 1.0.6 on the Debian but not om Fedora? -- Regards Jon Ingason _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx