An error is thrown: $ alsactl store -f abc.txt alsactl: get_control:256: Cannot read control '2,0,0,PCM Capture Source,0': Broken pipe
Also, one clue: in the external sound card (the hardware element) I have a switcher: USB Audio 2.0 and USB Audio 1.0. When 2.0 is selected the laptop recognizes it as "Xonar U7". The error appears only when 2.0 is selected. If I select 1.0 the laptop recognizes it as "USB Audio Device" - the error does NOT appear. I can select it. Is this helpful? What is USB Audio must I choose? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1267866 Title: Broken pipelline when changing the sound card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1267866/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs