As I read on this thread: http://comments.gmane.org/gmane.linux.ide/59791
the issue is common to many Samsung SSDs. I hope Canonical will backport the kernel fix to *buntus 15.04, and 14.04 soon. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1449005 Title: trim does not work with Samsung 840 EVO after firmware update (EXT0DB6Q) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fstrim/+bug/1449005/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs