Public bug reported: Start Carla, select patch bay tab. All jack ports are shown. Plug in a USB device and use zita-ajbridge to bridge the new device to jack. Carla shows the new device. Unplug the USB device zita is using. Stop the zita-ajbridge instance(s) (sigint). They segfault, try to move a jack port on Carla's patch bay the mouse icon freezes to the move icon and the port will not move. try to use the X to stop carla but carla does not respond. Any other program that uses jack will also fail to complete (I used jack_lsp to list jack's ports). It seems a reboot is needed to regain operability.
Upstream github issue: https://github.com/falkTX/Carla/issues/1237 reverting to Carla 2.1 fixes this. See patch below that fixes this problem. Note that some new functionality may be lost and this patch should be considered temporary until either Carla or jackd2 is fixed. However, much of the new functionality and bug fixes are retained. So it is worth while patching Carla 2.2 ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: carla 2.2.0-0ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-42.46-lowlatency 5.4.44 Uname: Linux 5.4.0-42-lowlatency x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu48 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Tue Sep 29 14:39:47 2020 InstallationDate: Installed on 2020-05-31 (121 days ago) InstallationMedia: Ubuntu-Studio 20.10 "Groovy Gorilla" - Alpha amd64 (20200531) SourcePackage: carla UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: carla (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug groovy ** Patch added: "diff to fix this bug" https://bugs.launchpad.net/bugs/1897808/+attachment/5415419/+files/JackBridge1.cpp.vc.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897808 Title: Carla 2.2 hangs when zita-ajbridge ends after device removal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/carla/+bug/1897808/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
