[mythtv-users] Re: [mythtv] Tip on how to slow down noisy DVD drives
Ashley Bostock
abostock at gmail.com
Fri Dec 3 20:34:10 UTC 2004
http://www.kde-apps.org/content/show.php?content=18057
On Fri, 3 Dec 2004 13:03:02 +0100, David Härdeman <david at 2gen.com> wrote:
> On Fri, Dec 03, 2004 at 12:49:08PM +0100, Nezar Nielsen wrote:
>
>
> >It's weird that you (and some others on the thread, haven't read it
> >all) say it doesn't work with dvd drives, I have a DVD/CD drive (LG
> >Super multi, I think it's called) and both hdparm and eject works for
> >me for setting the speed, eg.:
> >
> >hdparm -E 2 /dev/hdc
> >and
> >eject -t -x 2 (which also closes the tray)
> >
> >both work for me.
> >
> >
>
> It's because hdparm, eject and setcd use the CDROM_SET_SPEED
> ioctl which in turn uses commands which are only optional on DVD drives
> (which is why the hdparm method works for some DVD drives).
>
> SET_STREAMING on the other hand is apparently mandatory on all DVD
> drives, so people which have no luck with the hdparm tool should try the
> speedcontrol one.
>
> In the future it seems likely that the SET_STREAMING commands might be
> added to the kernel (so that the ioctl tried both methods).
>
> Re,
> David
>
>
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