[mythtv-users] RTC sync and bob deinterlace?

[Joe Votour]

--- Jesse Guardiani <jesse at wingnet.net> wrote:

> Hello,
> 
> Is it possible to run XvMC, video timing via
> /dev/rtc,
> and Bob Deinterlace?
> 
> I've attempted it, and I see this in my logs:
> 2006-03-26 21:57:21.451 Video sync method can't
> support double framerate (refresh rate too low for
> bob deint)
> 2006-03-26 21:57:21.453 Video timing method: RTC
> 
> I have an nvidia 5200. Please, don't tell me just to
> 
> run OpenGL Vsync as it's broken in the version of
> the nvidia driver I use. I can't downgrade back to
> 7676 because it causes kernel panics for me when
> running mupen64. So I'm stuck with RTC for now.
> 
> My display is driven by DVI 1360x768 at 60hz. midentify
> claims the video's fps is 29.970. So from what I've
> read about Bob deinterlace needing the video
> framerate
> to be a multiple of the refresh rate, that should be
> 
> OK, right?
> 
> Does Bob only work with DRM sync and/or OpenGL sync?
> 
> 
> -- 
> Jesse Guardiani
> Programmer/Sys Admin
> jesse at wingnet.net
> _______________________________________________
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> mythtv-users at mythtv.org
>
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 

It's been quite some time since I've used RTC timing,
but I seem to recall that you needed to change the
frequency from the default.  On my machine it is 64,
but I think it's recommended that you set it to 1024.

Try adding this to /etc/sysctl.conf:
sys/dev/rtc/max-user-freq=1024

You'll probably need to reboot for this to kick in.

-- Joe

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