On ���, 2002-01-25 at 09:26, Borsenkow Andrej wrote: > > > > > i have one of these old HP7200i cd-rw (IDE) devices that need dma > > turned-off in order for a successful burn/write session: > > > > ie: #hdparm -d0 /dev/hdc > > > > Otherwise, I get buffer-underruns and or the kernel locks-up > horribely. > > > > I believe i also had some issues with devfs & this ide cd-rw. forget > > tho. > > > > thought i'd post this to ensure that it's atleast known about. > > > > Again, yes, i need to turn-off dma for this cd-rw only. (my other > hdd's > > have dma turned on, etc). I think in the specs, it even says nothing > > about dma, etc. > > > > Yes, that irritates me as well. I'll try to contact devfs list, but no > promises :-) >
In the meantime you could try echo -n "using_dma:0" > /proc/ide/ide1/hdd/settings as root. Replace hdd with your drive. I would be very interested if it works (I too need to turn it off on my Philips so I'll do it anyway). -andrej
