[mythtv-users] RTC sync and bob deinterlace?

Jesse Guardiani jesse at wingnet.net
Mon Mar 27 04:54:37 UTC 2006


On Sunday 26 March 2006 11:11 pm, Joe Votour wrote:
> 
> --- 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
> > _______________________________________________
> > mythtv-users mailing list
> > 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.


Yeah, you don't even seen RTC in the log unless you do that.
I'm definitely using RTC, and it's working. That's not the
issue.


-- 
Jesse Guardiani
Programmer/Sys Admin
jesse at wingnet.net


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