The "Ubuntu Studio Controls" window is now visible and I can select the Jack Master Device (no USB) "chtrt5646,0,0 playback and capture device".
But I can't start Jack from the Controls-Window. The window freezes. An attempt with "QjackCtl" shows the following messages: : Starting jack server... : JACK server starting in realtime mode with priority 10 : self-connect-mode is "Don't restrict self connect requests" : Acquired audio card Audio0 : creating alsa driver ... hw:chtrt5645,0,0|hw:chtrt5645,0,0|1024|2|44100|0|0|nomon|swmeter|-|32bit : configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2 periods : ALSA: final selected sample format for capture: 24bit little-endian : ALSA: use 2 periods for capture : ALSA: final selected sample format for playback: 24bit little-endian : ALSA: use 2 periods for playback : ERROR: JackPosixProcessSync::LockedTimedWait error usec = 5000000 err = Connection timed out : ERROR: Driver is not running : ERROR: Cannot open client name = dbusapi : ERROR: failed to create dbusapi jack client : ERROR: Unknown request 4294967295 : ERROR: CheckSize error size = 0 Size() = 12 : ERROR: CheckRead error : ERROR: JackPosixProcessSync::LockedTimedWait error usec = 5000000 err = Connection timed out : ERROR: Driver is not running : ERROR: Cannot create new client I see the "jackdbus" process with "ps -e". But that's a different problem from "JackD", I think. Sound ist working with ALSA and PulseAudio direct. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872187 Title: ubuntustudio-controls crashed with IndexError in refresh_dropdowns(): list index out of range To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntustudio-controls/+bug/1872187/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs