Public bug reported: I'm using the beta version of Ubuntu 20.04 and Jack Audio is not working. My computer is a Thinkpad X1 Carbon 7th generation and am using the internal audio interface (hw:sofhdadsp). I include more details about my configuration at the end of the message.
When running qjackctl, I get a pop up saying "D-BUS: JACK server could not be started" and the following messages in the log: 12:01:13.413 Statistics reset. 12:01:13.422 ALSA connection change. 12:01:13.424 D-BUS: Service is available (org.jackaudio.service aka jackdbus). Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock 12:01:13.524 ALSA connection graph change. 12:01:26.640 D-BUS: JACK server could not be started. Sorry Sat Apr 11 12:01:26 2020: Starting jack server... Sat Apr 11 12:01:26 2020: JACK server starting in realtime mode with priority 10 Sat Apr 11 12:01:26 2020: self-connect-mode is "Don't restrict self connect requests" Sat Apr 11 12:01:26 2020: ERROR: Cannot lock down 82280346 byte memory area (Cannot allocate memory) Sat Apr 11 12:01:26 2020: Acquired audio card Audio0 Sat Apr 11 12:01:26 2020: creating alsa driver ... hw:sofhdadsp,1|hw:sofhdadsp,1|512|2|48000|0|0|nomon|swmeter|-|32bit Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock Sat Apr 11 12:01:26 2020: ERROR: ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode Sat Apr 11 12:01:26 2020: Released audio card Audio0 Sat Apr 11 12:01:26 2020: ERROR: Cannot initialize driver Sat Apr 11 12:01:26 2020: ERROR: JackServer::Open failed with -1 Sat Apr 11 12:01:26 2020: ERROR: Failed to open server Sat Apr 11 12:01:27 2020: Saving settings to "/home/felipe/.config/jack/conf.xml" ... qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 1002, resource id: 19008475, major code: 40 (TranslateCoords), minor code: 0 12:01:31.990 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info. Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock I also tried installing Ubuntu Studio, there I get the same errors with qjackctl and also "Ubuntu Studio Controls" doesn't start. The output of "lsb_release -rd" is: Description: Ubuntu Focal Fossa (development branch) Release: 20.04 The output of "apt-cache policy jackd" is: jackd: Installed: 5+nmu1 Candidate: 5+nmu1 Version table: *** 5+nmu1 500 500 http://us.archive.ubuntu.com/ubuntu focal/universe amd64 Packages 500 http://us.archive.ubuntu.com/ubuntu focal/universe i386 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: jackd 5+nmu1 ProcVersionSignature: Ubuntu 5.4.0-21.25-lowlatency 5.4.27 Uname: Linux 5.4.0-21-lowlatency x86_64 ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: XFCE Date: Sat Apr 11 16:28:19 2020 InstallationDate: Installed on 2020-04-06 (5 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) PackageArchitecture: all SourcePackage: jackd-defaults UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: jackd-defaults (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872244 Title: Jack audio not working on Ubuntu 20.04 running on a Thinkpad Carbon X1 (7th gen) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jackd-defaults/+bug/1872244/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs