Public bug reported: About my system: It's a new KDE Slimbook with KDE neon pre-installed, which itself is based on Ubuntu focal. I used aptitude to install ardour, calf-plugins, and some other stuff I need to do my audio work. All installed packages are up-to-date, there are no pending updates.
List of relevant installed packages: ii ardour 1:5.12.0-3ubuntu4 amd64 the digital audio workstation ii calf-plugins 0.90.3-1build2 amd64 Calf Studio Gear ... Steps to reproduce 1: - Open a new/blank Ardour workspace - Add the "Calf Limiter" plugin (LV2) to the Master bus - Double-click on the plugin to see its GUI - Try to raise the "Oversampling" value to 4 using the knob => crash Steps to reproduce 2: - Open an existing Ardour workspace where the Calf Limiter plugin is present already having an Oversampling value of 4. - In this case Ardour will crash right during the startup. - Workaround: - start Ardour with the '-B' option - activate all plugins (except the Limiter, which also would lead to an immediate crash) - open the Limiter and turn "Oversampling" down to 1. - then the Limiter plugin can be activated and everything works fine. PS: I noticed this bug after I was rsync'ing my audio workspaces from my PC (based on Debian/buster) to the new laptop. All workspaces and plugins (whether Calf, Guitarix, whatever) worked fine, except for my "mastering" workspace which is using the Calf Limiter plugin. ** Affects: calf (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1909022 Title: Ardour crashes when using the Calf Limiter LV2 plugin and tying to raise the Oversampling parameter to 4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/calf/+bug/1909022/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs