Martin, do you mind if I post the essence of your last two mails to my thread in the Ubuntu MATE forum? So the maintainers of that system can see what is going on. Am 04.05.2015 um 18:24 schrieb Martin K. Petersen: >>>>>> "Günter" == Günter Waller <g.wal@xxxxxx> writes: > > Günter> the second command, however, did not seem to produce anything > Günter> useful. But beware: this is the old firmware, EXT0BB6Q, > > Yes, this confirms that the old firmware did not support queued > TRIM. Whereas the new one does. > > I'll try to reach out to my contacts at Samsung again so we can get this > resolved. > > Until then, I have sent out a patch that blacklists queued TRIM for all > Samsung 800-series drives. It appears to be generic to their > implementation and not tied to a particular drive model. > -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html