This appears to be a bug in lilv. Per https://github.com/lv2/lilv/issues/32, this is fixed in the version of lilv in Groovy Gorilla (future 20.10) and we'll have to do a Stable Release Update to get this fixed in Ubuntu 20.04.
** Changed in: ardour (Ubuntu) Status: Confirmed => Triaged ** Also affects: lilv (Ubuntu) Importance: Undecided Status: New ** Also affects: ardour (Ubuntu Groovy) Importance: Medium Status: Triaged ** Also affects: lilv (Ubuntu Groovy) Importance: Undecided Status: New ** Also affects: ardour (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: lilv (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: lilv (Ubuntu Groovy) Status: New => Fix Released ** Changed in: lilv (Ubuntu Focal) Status: New => Confirmed ** Changed in: ardour (Ubuntu Focal) Status: New => Triaged ** Changed in: ardour (Ubuntu Groovy) Importance: Medium => Undecided ** Changed in: lilv (Ubuntu Focal) Importance: Undecided => High ** Bug watch added: github.com/lv2/lilv/issues #32 https://github.com/lv2/lilv/issues/32 -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to ardour in Ubuntu. Matching subscriptions: ubuntustudio-bugs: ardour https://bugs.launchpad.net/bugs/1877806 Title: ardour crashes when saving lv2 plugin preset Status in ardour package in Ubuntu: Triaged Status in lilv package in Ubuntu: Fix Released Status in ardour source package in Focal: Triaged Status in lilv source package in Focal: Confirmed Status in ardour source package in Groovy: Triaged Status in lilv source package in Groovy: Fix Released Bug description: The few lv2 plugins I have tried all crash ardour when I click on "save" to save the preset. Clicking Add to create a new plugin doesn't crash, but it also does not save the preset. If you load a plugin preset already created and then click save, you end up wiping out the contents of the preset direcoty in ~/.lv2. The .ttl files are deleted and you end up with an empty directoy. The only thing printed on the console when this happens is this: CALF DEBUG: instance 0x55c00d102860 data 0x55c01ca1cf10 CALF DEBUG: calf 0x7f8d31f7b0f0 cpi 0x7f8d31783ca0 Segmentation fault (core dumped) AFAIK, teh preset add and save functions work for ladspa plugins. -Don ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ardour 1:5.12.0-3ubuntu4 ProcVersionSignature: Ubuntu 5.4.0-29.33-lowlatency 5.4.30 Uname: Linux 5.4.0-29-lowlatency x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: XFCE Date: Sat May 9 21:39:09 2020 InstallationDate: Installed on 2020-04-26 (13 days ago) InstallationMedia: Ubuntu-Studio 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: ardour UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ardour/+bug/1877806/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp