From: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
To: ratcheson@earthlink.net
Subject: Re: DMA unuseable on Compaq presario 1260
Date: Sun, 2 Nov 2003 00:59:18 +0100
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Do you have OPTI621 IDE driver compiled-in?
[ Yes, I've just noticed it, help entry needs fixing. ]

On Sunday 02 of November 2003 00:26, Richard wrote:
> I have a Compaq laptop with the OPTI 82C825 IDE chipset.  Up until 2.4.20
> the DMA worked fine.  Beginning with 2.4.20 i get the message HDIO_SET_DMA
> FAILED: Operation not permitted each time I try to enable DMA.
>
> Distro is SuSE 9.0 current kenel is 2.4..21-99. default
>
> If I go back to 2.4.19 dma works fine.
>
> I have RTFM, maillists, etc. since April and all I can find are references
> to other systems with same problem and on in which Alan Cox says he changed
> something which broke the Toshiba.   But no fixes for my machine. I waited
> patiently for the 9.0 upgrade hoping it would be fixed but no joy.
>
> Is there an easy fix or do I need to compile a special kernel for this one?

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