[mythtv-users] Judder free playback with mythtv
Matt Beadon
matt.beadon at gmail.com
Fri Jul 9 07:45:17 UTC 2010
>
>
> First of all, it doesn't drop to 0Hz... 0Hz just means don't change
> the existing frequency.
>
That's good to know. But you understand that blank screen and a logfile
that says 0Hz sounds related? :)
I went through the steps on the wiki and verified that my tv can handle all
the resolutions in my xorg.conf so I'm not sure why I would get a blank
screen. Any ideas?
> Change:
>
> > Option "UseEDIDFreqs" "False"
>
> to
> Option "UseEDID" "False"
>
That has the side effect of killing my sound over hdmi. That's a big
problem for me so I reverted back to "UseEDIDFreqs" since I couldn't find a
work around (and I'm tired).
> >
> > Section "Device"
> ...
> > Option "ModeValidation"
> "NoVesaModes, NoXServerModes"
>
> To:
> Option "ModeValidation" "NoVesaModes, NoXServerModes,
> NoEdidModes"
>
> > Option "HWCursor"
> "false"
> > Depth 24
> > Modes "1920x1080 at 60" "1920x1080 at 24"
> > Modes "1920x1080 at 60i" "1920x1080 at 59.94"
> "1920x1080 at 23.976"
>
> So remove
> "1920x1080 at 24"
>
I left the NoEdidModes in and removed the interlaced mode. Quick test shows
I still have a big audio lag after switching to 24Hz but I haven't done
enough testing yet to see if the blank screen returns. When I tested with
xrandr 24Hz displayed fine on my tv. Do you still think I should remove
24Hz (and/or 23.976Hz) from my xorg.conf?
> from the list.. You also don't want any of the interlaced mode in
> there... it's only going to screw things as you can't easily tell the
> difference between 60i and 30p (not for the modeline that is)
>
My tv tells me the difference between 1080i and 1080p but don't think that's
relevant to whether the modelines look different to mythtv. Regardless I
removed the 1080i mode.
Thanks for all your help!
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