My card allows to turn 'Record from PCM' on/off. (Most newer cards don't allow record at all). In previous versions of kmix it was such checkbox, but now it disappeared. So my card is always in 'Record' mode causing echo in some audio apps.
Dear Bug Submitter, This bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? I am setting the status to NEEDSINFO pending your response, please change the Status back to REPORTED when you respond. Thank you for helping us make KDE software even better for everyone!
I don't use kde any more.