DMA ought to be set automatically. If you have a device where this isn't the case, please provide /var/log/dmesg and the output of the lspci command.
-- hdparm is busted in the hd? -> sd? change https://launchpad.net/bugs/73889 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs