To add to Len's comment above, this could also be the result of Cadence being previously installed and ran on your system, which messes with the user pulseaudio configuration in a way that's incompatible with Ubuntu Studio Controls. As this doesn't seem to be a bug, but user error/support request, I'm closing this bug as invalid.
** Changed in: ubuntustudio-controls Status: Incomplete => Invalid ** Changed in: ubuntustudio-controls Assignee: Len Ovens (len-ovenwerks) => (unassigned) ** Changed in: ubuntustudio-controls (Ubuntu) Status: Incomplete => Invalid ** Changed in: ubuntustudio-controls (Ubuntu) Assignee: Ubuntu Studio Development (ubuntustudio-dev) => (unassigned) -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to ubuntustudio-controls. Matching subscriptions: UbuntuStudio Bugs, ubuntustudio-bugs https://bugs.launchpad.net/bugs/1867539 Title: pulseaudio bridge cause mass Xruns, even there is no output/input Status in ubuntustudio-controls: Invalid Status in ubuntustudio-controls package in Ubuntu: Invalid Bug description: I want to report the situation, because I use my laptop to teach music to my students with midi keyboard. In the past I use QjackCtl or Cadence (pulseaudio bridge off) on my laptop, I can run jackd2 on 128X3 buffers with forced 16 bit to use Qsynth and Hydrogen well without Xruns ,but I get lot of xrun on Ubuntustudio 20.04 (the same laptop, and using recommended system tweaks., The sound becomes distorted. The version of ubuntustudio- controls is 1.12.3 . On "Pulse Bridging"tab , Even I turned off all input bridge and output bridge ,and it still happen. I found pulseaudio is still working (I can hear sound from normal apps like Firefox... ). I see an option "turn on a2jmidid", but no "turn on Pulseaudio Bridge" option. In pro audio job ,we usually only use full jack audio system. (Using pulseaudio during break time). I wish there is an option "turn on Pulseaudio Bridge" ,so I can turn off it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntustudio-controls/+bug/1867539/+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