[mythtv-users] Playback stoppy and go-y. Ie super-duper-uber-jittery.

[Kevin Kuphal]

Greg Stark wrote:
> Kevin Kuphal <kuphal at dls.net> writes:
>
>   
>> Have you tried the ATI binary fglrx drivers?
>>     
>
> Yeah, like most proprietary kernel modules they didn't work because they
> weren't up to date with the latest kernels. I had to edit Kconfig to even get
> them to build since they were using an obsolete interface that was removed by
> default in 2.6.16. 
>
> Then when I ran it I couldn't get non-cloned merged framebuffer to work, it
> just displayed garbage on both screens. And even in cloned screens mode when I
> ran glxgears or quake they displayed a black window or a window with the
> graphics offset by about 800 pixels. And then the machine would crash.
>
> I'm getting passable performance in quake with the ati drivers so I'm happy
> for now. (2000+fps in glxgears and 90fps in quake 800x600 which is great but
> 30-40fps in quake at 1600x1200 which kind of sucks)
>
> If only the drivers provided more than one Xv port I would be basically back
> to where I was before I "upgraded" my card from the G400 I had before. But the
> G400 had no DVI output for the new LCD panel.
>
> I wonder also whether about this line:
>
> 2006-03-27 13:48:22.447 Video timing method: DRM
>
> The radeon DRM for the RV350 is also pretty new. Perhaps it's misbehaving
> somehow?
>
>   
It's probably a lack of DRI or accellerated playback of any kind that 
matters.  For what it's worth, ATI is probably the worst brand to pick 
in general for Myth because of their driver situation.  Although you're 
going to have some growing pains trying to do everything on a very new 
kernel.    Is there a reason you're using 2.6.16 instead of a supported 
kernel revision for the driver package?

Kevin