While attempting to debug this, I did indeed run into this issue using the version of wine available in 20.04 and 20.10 (Groovy Gorilla):
/usr/bin/ld: relocatable linking with relocations from format elf64-x86-64 (/usr/lib/x86_64-linux-gnu/wine- development/libwinecrt0.a(dll_entry.o)) to format elf32-i386 (jackbridge-wine32.WO6FJy.o) is not supported I believe this is a bug in wine that needs to get corrected, or else this will remain a problem in Focal. ** Also affects: wine-development (Ubuntu) Importance: Undecided Status: New ** Changed in: wine-development (Ubuntu) Importance: Undecided => High ** Changed in: wine-development (Ubuntu) Status: New => Confirmed ** Also affects: carla (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: wine-development (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: carla (Ubuntu Groovy) Importance: Medium Assignee: Erich Eickmeyer (eeickmeyer) Status: Triaged ** Also affects: wine-development (Ubuntu Groovy) Importance: High Status: Confirmed ** Changed in: carla (Ubuntu Focal) Status: New => Triaged ** Changed in: wine-development (Ubuntu Focal) Status: New => Confirmed ** Changed in: wine-development (Ubuntu Focal) Importance: Undecided => High ** Changed in: wine-development (Ubuntu Groovy) Importance: High => Medium ** Changed in: carla (Ubuntu Focal) Assignee: (unassigned) => Erich Eickmeyer (eeickmeyer) ** Changed in: carla (Ubuntu Focal) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to carla in Ubuntu. https://bugs.launchpad.net/bugs/1875641 Title: Wine32 VST Bridge plugins missing gui (Ubuntu Studio 20.04) Status in carla package in Ubuntu: Triaged Status in wine-development package in Ubuntu: Confirmed Status in carla source package in Focal: Triaged Status in wine-development source package in Focal: Confirmed Status in carla source package in Groovy: Triaged Status in wine-development source package in Groovy: Confirmed Bug description: Carla works very well with the Wine64 Bridge. Only the Wine32 starts the VST32 Plugins in a Window with a black screen with the NVIDIA- Meta-Driver-440. I've uninstalled the wine-development version 5.5 and installed the latest winehq-devel 5.7 from WineHQ and recompiled the Carla-Bridges my self. Now the Wine32 VST Plugins are working. Maybe it's a bug in the wine-development package or something missing in the carla package. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: XFCE DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-04-25 (3 days ago) InstallationMedia: Ubuntu-Studio 20.04 LTS "Focal Fossa" - Release amd64 (20200423) NonfreeKernelModules: nvidia_modeset nvidia Package: carla 2.1-0ubuntu1 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.4.0-26.30-lowlatency 5.4.30 Tags: focal Uname: Linux 5.4.0-26-lowlatency x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/carla/+bug/1875641/+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