Bug#284853: kde: Media handling from desktop icon is broken
some more info:
I noticed that the bug always occurs when you switch on the navigation panel
in Konqueror and switch to the "Services" tab. This is when kio_audiocd grabs
the device and never lets it go.
Maybe you didnt see the bug so far because your Konqueror file management
profile differs from the default install and you never activated kio_audiocd
Could you please, please, please mount a CD/DVD via the desktop icons, open
Konqueror, turn on the navigation panel, switch to the Services tab, try to
umount the CD/DVD again via the desktop icons and report your results!?
Writing one bug report after the other without a response can become very fast