Problems with DVD Playback

[Carl R. Powers]

Thanks for the suggestion.  I'll try disabling sound to see if that 
helps also. 

Things are already looking a lot better.  MTRR was enabled but DMA
for the CD/DVD drives was disabled.  Recompiling the kernel with DMA
support enabled made totem, xine, and gxine a lot smoother, but there is
still room for improvement.

Carl R. Powers
<powers at trac.wsmr.army.mil><powers at copper.net>

Jalal Al-Mutawa wrote:

> Hi,
> I am not sure about DVDs, but I had a problem with choppy/jerky DivX 
> files and it turned out to be a sound driver issue.
>
> See if running the DVD with no sound (e.g. mplayer -nosound) gives a 
> better performance.
>
> Thanks,
> Jalal
>
> Carl R. Powers wrote:
>
>> Jeff,
>>
>> Thanks for the response on both accounts.  I'll check / try them out
>> when I get my machine back.  Right now it's compiling the kernel
>> for pvt. variables.  Quite possible the mtrr selection got turned off
>> during my recent kernel upgrades.   Will let you know how it goes.
>>
>> Jeff Hodges wrote:
>>
>>> _______________________________________________
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>>>
>>>  
>>>
>>> ------------------------------------------------------------------------ 
>>>
>>>
>>> Date:
>>> Fri, 23 Jan 2004 19:50:39 -0700
>>>
>>>
>>>  
>>>
>>> ------------------------------------------------------------------------ 
>>>
>>>
>>> On Fri, 2004-01-23 at 21:29, Jeff Hodges wrote:
>>>  
>>>
>>>> On Fri, 2004-01-23 at 19:04, Carl R. Powers wrote:
>>>>  
>>>>
>>>>> Several months ago I got DVD playback working using xine, gxine,
>>>>> totem, and MPlayer.  Since that time, something has changed so that
>>>>> now DVD playback is "choppy" or "jerky" - not a smooth continuous
>>>>> playback as it was and should be.  MPlayer seems to be the least 
>>>>> affected
>>>>> <powers at trac.wsmr.army.mil><powers at copper.net>
>>>>>     
>>>>
>>>>
>>>> Have you tried a different video driver?  mplayer -vo help for more
>>>> info.  You can then change the default driver in /etc/mplayer.conf. 
>>>> Mail us back if you find a better vo driver for your set up.
>>>> Thanks!
>>>>   
>>>
>>>
>>> Also, make sure that you have mtrr enabled in your kernel.  Large
>>> performance boost from that.  If its enabled CONFIG_MTRR should be set
>>> and there should be a file /proc/mtrr.
>>>  
>>>
>>
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>>
>
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