Public bug reported: I believe this is the same issue as bug 582501, but as that bug report appears to be dead, I am restating it here. Reading around the interwebs, it appears to be a very well known and long-standing bug.
tumblerd prevents removable media from being removed. This happened to me this evening with an mp3 player. From what I have read around the web, this happens only when there are video files on the media, and I can confirm that the media I was trying to dismount this evening contained a video file. I have just noticed that the drive I was trying to unmount has finally unmounted while I was researching and writing this report. So it appears that this bug may simply delay unmounting, albeit for an unacceptably long time, rather than outright preventing it. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: tumbler 0.1.30-1ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-24.47-lowlatency 3.13.9 Uname: Linux 3.13.0-24-lowlatency x86_64 ApportVersion: 2.14.1-0ubuntu3.1 Architecture: amd64 CurrentDesktop: XFCE Date: Wed May 14 22:21:12 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2013-08-22 (265 days ago) InstallationMedia: Ubuntu-Studio 13.04 "Raring Ringtail" - Release amd64 (20130424) SourcePackage: tumbler UpgradeStatus: Upgraded to trusty on 2014-04-22 (22 days ago) ** Affects: tumbler (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1319554 Title: tumblerd prevents removable media from being unmounted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/tumbler/+bug/1319554/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs