DMA issues with FC4 on a Dell precision M70

[Robin Laing]

Robin Laing wrote:
> François Patte wrote:
> 
>> Alfredo Ferrari wrote:
>>

>>
> 
> Been away for a week so I am late responding.
> 
> Having had similar problems on a Toshiba laptop with an Intel ICH6 
> controller.  Could not get DVD's to play and could not get DMA to work.
> 
> I can now play DVD's perfectly from my DVD player.  I played with the 
>  'options libata atapi_enabled=1' settings and the latest kernel seems 
> to have all working.  I would have to look at the laptop to see the 
> exact changes (at home).  I could not get that libata settings to work 
> at first.
> 
> I know that the changes did not work in grub but I had to play with the 
> module config files.

FWIW, these are the changes I made.

options ide hdc=noprobe  (DVD drive)
options libata atapi_enabled=1

I don't remember making this change but I could have.
alias scsi_hostadapter ata_piix

-- 
Robin Laing