Peter is right. With previous firmwares, the drive would not announce that it suppurts queued TRIM. The drive would however still support an "unqueued" TRIM (so the discard option will work). With the patch, Samsung SSDs are blacklisted and the kernel will not use queued but only unqueued TRIM commands.
-- 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
