Kaffeine playback jerky

[David McGlone]

On Tuesday 02 September 2008 2:03:21 am Billie Walsh wrote:
> Billie Walsh wrote:
> > david wrote:
> >> On Monday 01 September 2008 1:54:27 pm Billie Walsh wrote:
> >>> Knapp wrote:
> >>>> On Mon, Sep 1, 2008 at 5:05 PM, Billie Walsh <bilwalsh at swbell.net> 
wrote:
> >>>>> I've been following the thread about Kaffeine Borked with interest. I
> >>>>> had been unable to get DVD,s to play also. Some error message about
> >>>>> dvdcss not being installed but it was. Anyway, I checked and sure
> >>>>> enough changing the source to scd0 fixed that part. Now they play,
> >>>>> but there's a new problem.
> >>>>>
> >>>>> Playback is VERY jerky on both home recorded media and commercial
> >>>>> media.. The computer is a 3.5GHz, with two gigs of memory so there
> >>>>> shouldn't be an issue there. What I notice is that both the hard
> >>>>> drive light and dvd drive lights are on constantly during playback.
> >>>>>
> >>>>> --
> >>>>> Life is what happens while your busy making other plans.
> >>>>
> >>>> Start by telling what graphics card you have and if it is set up for
> >>>> openGL and if your player is set to use it. I an not sure what the
> >>>> best driver selections are for the players but I know on my system
> >>>> there are a lot of choices.
> >>>
> >>> Probably should also say it Kubuntu 8.04/KDE 3.5.9
> >>>
> >>> It's an ATI Radeon video card using the ATI drivers. Near as I can
> >>> figure it out Kaffeine is set to use the default driver/card under
> >>> xengine parameters. It's the built in video "card" on the mother board.
> >>>
> >>> Is there a CLI command that will give me the exact card?
> >>>
> >>> It seems that I used to use the fglrx drivers on this computer, but
> >>> can't guarantee that. That is an option in System settings. The other
> >>> options listed are fbdev, 8500, and vesa
> >>
> >> Here Billie, Add Option "VideoOverlay" "on"  to your xorg.conf file.
> >> Here is an example of mine:
> >>
> >> Section "Device"
> >>         Identifier      "Configured Video Device"
> >>         Option          "VideoOverlay"  "on"
> >>         Driver          "fglrx"
> >>
> >> Then restart your X server or reboot your computer. You shouldn't have
> >> any choppy video now.
> >
> > This just gets weirder and weirder. Here is my section of
> > etc/x11/xorg.conf
> >
> > Section "Device"
> >     Identifier    "Configured Video Device"
> > EndSection
> >
> > Thats all there is.
>
> I just noticed that even the mouse motion is jerky while the DVD is
> playing.

This sounds more of a problem with DMA instead of video. Go ahead and add the 
option to your xorg and make your dvd rom use DMA and I guarantee all of 
these problems will dissapear.

David M.