[MPlayer-users] Smooth DVD Playback And OpenGL

[Rob Wallace]

  But DVD playback (only DVDs, not AVIs) is a little
> jerky with Mplayer (0.90pre4, built from source), just enough to be
> irritating.  

I was having the same problem and I have almost the same hardware and
software (Intel here). The jerky play back only affected DVD movies.

> 
>         LFS 3.3
>         kernel 2.4.18
>         libc 2.2.5
>         XFree86 4.2.0
>         gcc 2.95.3
>         ld 2.12
>         as 2.12
>         Nvidia drivers 1.0.2960
>         ALSA 0.9.0rc1
> 

At first I thought it was the 2.4.18 kernel because when I rebooted
(same Linux) with 2.4.9 everything was fine. In the end I found setting
'hdparm -d1 -a8 -u1 /dev/cdrom' solved the problem with the 2.4.18
kernel. Maybe that will work for you.

Rob