dma on as default

Paul Smith phhs80 at gmail.com
Mon Aug 28 13:45:35 UTC 2006


On 8/28/06, François Patte <francois.patte at math-info.univ-paris5.fr> wrote:
> >> >> What is exactly your problem? Do you have SATA HD? Is it a laptop?
> >> >
> >> > Thanks, François. The problem is that if I do not set dma on, my dvd
> >> > burner works _extremly_ slow. I do not have any SATA HD and it is not
> >> > a laptop.
> >>
> >> Did you try hdparm -c1 /dev/hdx (where hdx is the device your dvd is
> >> linked to)?
> >>
> >> And try burning a dvd.
> >>
> >> Can you read a dvd "normally" with xine without a lot of frame being
> >> dropped?
> >
> >
> > With
> >
> > # /sbin/hdparm /dev/dvd
> >
> > /dev/dvd:
> > IO_support   =  1 (32-bit)
> >  unmaskirq    =  1 (on)
> > using_dma    =  1 (on)       <----- So dma is on now
> >  keepsettings =  0 (off)
> >  readonly     =  0 (off)
> >  readahead    = 256 (on)
> > HDIO_GETGEO failed: Inappropriate ioctl for device
> > #
> >
> > I can record and play video DVDs with no (apparent) problem. However,
> > in the command line, with xine, I keep getting 'bad_frame'.
>
> And the speed when burning CD/DVD?

The speed is fine. The dma is on now, true, but it gets off after a
reboot, which is my problem.

Paul




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