The last thing I read about SATA drives said that DMA is always enabled. On the few Linux boxes I've built with SATA drives, it hasn't been an issue.

Having said that, hdparm is actually for IDE drives only. On all the boxes I've built, the SATA drives show up using SCSI nomenclature (/dev/sda, etc.) Although you can query and test /dev/sdx drives with hdparm, you're not supposed to be able to set parameters.

Does your motherboard have some sort of IDE emulation for the SATA drives? You might try turning that off and going with a native SATA interface. If your OS is installed on the SATA drive, this will involve using a rescue disk as the drive designation will change.

Hope this helps.

Kirk Bocek

Phil Strong wrote:
SATA and DMA not working how can I resolve this guys?

On 10/11/05, *Phil Strong* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > wrote:

    I recently replaced my mythbox with a shiny new machine that now has
    SATA drives.  After initial install of OS and Myth ... I play live
    tv and it is slow and/or skips.  I checked the hdparm for /dev/hda5
    (/video) and find out that DMA is disabled :).

    How do I go about enabling DMA?

    If the answer is reinstall how do I insure this won't happen again?

-- Phil Strong
    Synergetic Data Systems
    (w) 240 793 6565
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>



--
Phil Strong
Synergetic Data Systems
(w) 240 793 6565
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>


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