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Message #09876
[Bug 1897808] Re: Carla 2.2 hangs when zita-ajbridge ends after device removal
The attachment "diff to fix this bug" seems to be a patch. If it isn't,
please remove the "patch" flag from the attachment, remove the "patch"
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** Tags added: patch
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https://bugs.launchpad.net/bugs/1897808
Title:
Carla 2.2 hangs when zita-ajbridge ends after device removal
Status in carla package in Ubuntu:
New
Bug description:
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)
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References