I have reverted the question back to an bug report. To shorten the bug report I have thrown all questions out of the report. The bug is that you cannot read the DMA status nor change it. On my system hdparm has an similar output and activating DMA does not work. /dev/sda is a Samsung HD501LJ.
$ sudo hdparm /dev/sda /dev/sda: IO_support = 0 (default) 16-bit) HDIO_GET_UNMASKINTR failed: Inappropriate ioctl for device HDIO_GET_DMA failed: Inappropriate ioctl for device HDIO_GET_KEEPSETTINGS failed: Inappropriate ioctl for device readonly = 0 (off) readahead = 256 (on) geometry = 60801/255/63, sectors = 976773168, start = 0 ** Attachment added: "lspci-vvnn.log" http://launchpadlibrarian.net/16839550/lspci-vvnn.log -- failed: Inappropriate ioctl for device https://bugs.launchpad.net/bugs/257840 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
