This was a hard one to detect. The problem is that if knotify is configured to use the KDE sound system running with an M-Audio Delta 1010LT sound card, it somehow manages to set the source of the clock of the sound card to S/PDIF. Then *I guess* the notifications hangs because as there is no clock in the sound card, nothing can "evolve" including the software that plays the audio itself. This also means that the clock source can't be changed until knotify apps are killed. How does knotify manages to change the source clock I really don't know. I understand this can be a very hard bug to solve without the proper hardware, so please do not hesitate in asking me for more info/compile stuff, etc. Reproducible: Always Actual Results: Sound hanged, can't change audio card's master/source clock.
Let's see if Phonon maintainers know of a way to debug this. Do you have any other issues with sound in other KDE or non-KDE applications?
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!
Please close it. I worked around this bug somehow and now my 1010LT has died, so I can't even test it again. Andrew: besides that, with my Debian maintainer hat on, thank *a lot* for the big triaging you are doing. My most sincere kudos to you.
Thanks for the update! Just trying to do my part. :)