On Thu, 20 Dec 2001, Thomas Halahan wrote: > > I don't understand why I can't get my K6-2 400MHz, and Rage > IIC greaphics card to give good playback. In the DVD howto > I see that you need io ctrl in the Kernel. Could it be > that I do't have this feature enabled? Is it really that > critical. The most common causes are: 1) XVideo isn't working. Check this with xvinfo 2) MTRR isn't setup. Check /proc/mtrr 3) IDE DVD isn't using DMA. hdparm -d1 /dev/dvd -jwb