Le Jeudi 16 Janvier 2003 09:21, Thierry Vignaud a �crit :
> > I could not use my dvd drive until I turned dma use on, so in a way it
> > is necessary to boot my system.
>
> no since:
> - dma drive access is not generally needed to boot a system
> - having dma off usually does not prevent to access a dvd drive
Watching dvd *need* to have dma turned on a many system, because low
performance without it.
Look at videolan page or other dvd players, they recommand activing dma for
best performance.
for my part, hdparm didn't need to be presend on a default install.
but, as mandrake disable dma on cdrom and dvd(comments said it causes
problem?), when users want to reactivate it with hdparm, they won't find it.
Activating dma at boot is good but it doesn't work every time.
after several mdk install, I've found that on some system, disk performances
are bad, because dma wasn't activated by kernel (why?), so having hdparm -d1
in /etc/rc.sysinit doing the stuff needed is good -> we need hdparm.
