Re: Can't enable DMA when using IDE devices on SATA controllers

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Marcelo Magno T. Sales wrote:
> Hi, Mikkel
> 
> Em Quarta 31 Maio 2006 15:59, Mikkel L. Ellertson escreveu:
>> Hdparm can NOT control DMA setting for SATA drives. What I have done
>> is to add "hdc=noprobe" to the Grub boot line for the kernel. hdc is
>> then treated as a SCSI device, and it uses the BIOS DMA settings.
>> Hdparm will still say that DMA is not turned on for the drive, but
>> DMA will be used. (It also says that DMA is off for /dev/sda.)
>>
> Thanks. This seems to have solved the problem for the hard drives, but I have 
> yet to find out if there's something more that must be done for the DVD 
> drives, which are still too slow.
> 
> []'s
> Marcelo
> 
What devices do the DVD drives show up as? You may have to add more
noprobe options. I am using it on a laptop, so I only have the hard
drive and the DVD-RW drive.

Mikkel
-- 

  Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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