[wplug] DMA

[Benjamin G. Beige]

here I was thinking Direct Memory Access.... like the DMA addresses on old 
hardware...




On Tue, 11 Mar 2003 17:36:35 -0500, Coutch, Robert 
<Robert.Coutch at tvratings.com> wrote:

> I'll ask the obvious.
>
> Does you mother board/IDE controller support DMA or UDMA transfers?
> Does the DVD drive support DMA or UDMA.
>
> Is the drive IDE of SCSI?
>
> If it's IDE, are you using scsi emulation for a DVD/CD-R/W drive?
>
> -Bob
>
> -----Original Message-----
> From: R.E.Coutch [mailto:coutchre at usaor.net]
> Sent: Tuesday, March 11, 2003 5:27 PM
> To: coutchre at tvratings.com
> Subject: [wplug] DMA
>
>
> I'm trying to play DVDs using xine and it is very jerky.  After searching 
> on google, I noticed that a lot of people say to turn DMA on for your DVD 
> drive.  However, when I try, I get the following error:
>
> [root at localhost linux-2.4]# hdparm -d1 /dev/hdd
>
> /dev/hdd:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Operation not permitted
> using_dma    =  0 (off)
>
> Is there some other way to turn it on. I'm thinking that I will need to 
> recompile the kernel, but I'm not quite sure which setting I need to turn 
> on.  Here's my system:
>
> [root at localhost linux-2.4]# uname -a
> Linux localhost.localdomain 2.4.18-14 #1 Wed Sep 4 12:13:11 EDT 2002 i686 
> athlon i386 GNU/Linux
>
> -Henry
>
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>
>



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