CDs are not unmounted when using eject-hw-button

[Ludwig Cornelius]

In Kubuntu 14.04 I tried to use CDs. When using the hardware button to eject CDs, they are not unmounted and the following CD can't be used. I just see crippled filenames in dolphin.

How to reproduce:
-When putting a CD into the drive and mounting it using the KDE-GUI, everything works correctly.
-Then push the hardware eject button.
-The CD is still mounted, showed by "mount" in terminal. (first problem)
-Insert another CD
-Mount it using KDE-GUI
-Dolphin shows only some files with chinese letters intead of the real file names with latin letters

Expected behaviour:
-CDs are unmounted when ejected
or
-CDs can't be ejected over the hardware button when mounted.

I reproduced this bug with Kubuntu 14.04 LTS (Ubuntu with KDE installed afterwards) and our own, modified version of Kubuntu 12 LTS.
I think this bug may be related to udisks, but I'm not shure. I built my own udisks2-package, copying the sources of the latest upstream release into it (udisks2, version 2.1.3) but it didn't help.

I found these related bugs:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=713877
​https://bugs.launchpad.net/ubuntu/+source/udisks/+bug/727197
​https://bugs.launchpad.net/ubuntu/+source/udisks/+bug/476654

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

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[Ludwig Cornelius (t-d-l-c)]

I suppose the bug occurs due to udisks2, but I'm not shure, could be kernel or something else.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.