[mythtv-users] Modern ION replacement?

Jean-Yves Avenard jyavenard at gmail.com
Wed May 14 16:15:22 UTC 2014


On 15 May 2014 02:09, John Morris <jmorris at beau.org> wrote:

> designed so you want it to go out exactly as transmitted.  It will look
> perfect.  Assuming the set can also do 720p60 you would want Myth to
> switch modes and to also display that mode unretouched.

unfortunately, the automatic refresh rate selection will always favour
playing at 60p rather than 60i as there's also no way to detect of a
modeline is interlaced or not with plain xrandr.
so if your set can do 60p and you attempt to play 60i, the refresh
rate will be set to 60p.
you would have to disable 60p completely from the list of modelines
and only have 60i for that refresh rate to be selected.

Having said that, it's not quite true what you said that you don't
want mythtv to do anything. If you just output the signal as-is, you
have 50% chance of your TV getting it wrong.
Hence why Paul suggested the "Interlaced 2X" deinterlacer, it's
specifically designed for this case, and ensure that it doesn't matter
if you sync on odd or even field.

BTW, he's the author of that deinterlacer, ask him all the questions about it


More information about the mythtv-users mailing list