dvd playback stutters

decuser

decuser

I'm trying to view a dvd video on freebsd 11. I have a dell optiplex 755, 3ghz intel, with 8gb ram, and a standard issue dvd reader/writer. It seems like the video is choppy, skipping frames every once in a while. I am using VLC in KDE as the player. Is it normal to have video problems on freebsd? I know it isn't most folks choice of desktop, but still... I've experienced it since version 9, usually I just move the dvd over to a Windows machine or my Mac, but that seems lame. What can I look at to see what might be causing the issue?
 
I had many problems playing video with VLC, all gone after I switched to mpv. Though not sure how good is mpv for playing DVDs.
 
Interesting, mpv won't install on my freebsd 11.1 instance - some rigamorole about missing dependency libGL, which isn't installable...
 
I checked out how Hellraiser ran from disk using multimedia/vlc and it runs smooth as can be even in fullscreen mode.

The box I'm using has a nVIDIA Quadro NVS 140M with 256MB shared memory so it's hardly a graphics powerhouse.
 
I read up a bit and added these to my loader.conf:

kern.ipc.shmmax=67108864
kern.ipc.shmall=32768

Things are much better.
 
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