Hmm, does DMA work for the HD but not for the DVD? They have the same IDE
controller (unless at least one of them is on an add-in card).
On Tue, 29 Mar 2005, Eric Jahn wrote:
> On Tue, 2005-03-29 at 00:17 -0500, Eben King wrote:
> > [*] ATA Work(s) In Progress (EXPERIMENTAL)
>
> don't seem to have that one.
No matter, it only enables some selections, it doesn't do anything itself.
> I have: <M> AMD and nVidia IDE support
"This driver adds explicit support for AMD-7xx and AMD-8111 chips and also
for the nVidia nForce chip."
Is that what you have?
> Could it be my modules aren't getting loaded? Okay, here is my lsmod
> output while running a dvd movie:
...
> amd74xx 14768 1
...
> It looks like every module is being loaded for ide.
At least the one that should matter.
> I'm thinking that my hardware is not being supported by the modules
> available. Sounds like I just need to wait for a later kernel version to
> come downstream.
Ideas:
1. Maybe you have a 40-(not 80-)conductor cable on the DVD?
2. Maybe the controller/driver really sucks and only does DMA for the
primary interface?
2.1. Try booting a different OS (LiveCD, OS CD, Wind*ws, whatever) & see if
it supports DMA on the DVD.
2.3. Also switch primary/secondary IDE & see what happens.
2.3. Run "modinfo amd74xx" to see if there are any options you need.
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