jerky DVD playback

[jcoool98]

I am running Ubuntu and getting really jerky DVD playback. I enabled DMA tranfer and it seemed to work better, but still not perfect. When I rebooted the next time I used the computer, it was back to being really jerky. Thanks for any help you can give.

[antidrugue]

You have enable DMA, good.

But still, have you changed /etc/hdparm.conf so it gets enabled by default when you start your computer?

In /etc/hdparm.conf, you would need, at the end, if "hdc" is your DVD:

command_line {
       hdparm -d1 /dev/hdc
}

Other then that, have you installed "libdvdread3" ?

sudo apt-get install libdvdread3

And then, you would need libdvdcss (can only be installed once you have libdvdread3):

sudo /usr/share/doc/libdvdread3/examples/install-css.sh

Have fun with GNU/Linux!