[mythtv] [mythtv-commits] mythtv commit: r9915 - in trunk/mythtv by danielk

Tom Lichti tom at redpepperracing.com
Tue May 16 01:23:02 UTC 2006

tj wrote:
>     ------------------------------------------------------------------------
>     *From:* Tom Lichti [mailto:tom at redpepperracing.com]
>     *To:* Development of mythtv [mailto:mythtv-dev at mythtv.org]
>     *Sent:* Mon, 15 May 2006 22:01:23 +0800
>     *Subject:* Re: [mythtv] [mythtv-commits] mythtv commit: r9915 - in
>     trunk/mythtv by danielk
>     Tj NG wrote:
>     > mythtv at cvs.mythtv.org <mailto:mythtv at cvs.mythtv.org> wrote:
>     >
>     >> The OSD fading (#1461) is fixed as far as I can tell. Tj NG is
>     still reporting problems, but I can't reproduce his problem with
>     the same setup so I'm closing the ticket.
>     >>
>     >>
>     >>
>     > I'm still seeing it... Not sure why, or how, but it must be my
>     system I
>     > guess... Anybody other than me still seeing OSD not fade away
>     cleanly?
>     >
>     I haven't experienced it since moving to the mythtv-vid branch, with
>     nVidia 8756, 6200GT card, and XvMC enabled, with the default Blue
>     theme
>     and I think the Isthmus OSD.
> Hmm. is 6200GT a NV43 chip? What's the diff between 6600GT and 6200GT 
> anyway?
Not sure. I forgot about this message, and I just put in my 5200 to test 
something. The 5200 is an NV34, and I don't seem to have any OSD 
problems with it either.
> Can you attach your xorg.conf file for me to have a look? I wanna see 
> what is making me see watermarks. Must be something so simple (or 
> hard) I couldn't figure it out.
See attached, although I am using XFree.
> It's definitely better than before, now I see only only edges and 
> borders where previously there's text.
> IIRC mythtv-vid has been merged back to trunk. You can check that out 
> and see if your still having problems.
Actually I think it was the other way 'round, trunk changes were merged 
into -vid.
>     > Also, when I use XvMC decoding, I realised that sometimes the
>     top 5-10%
>     > don't match the rest of the frame. Anybody seeing this as well?
>     >
>     Yes, actually, I do see this problem sometimes. I thought it was my
>     setup as I just added a Grandtec video convertor, but if someone
>     else is
>     seeing that, maybe it's not the Grandtec...
> I see it sometimes also, but not all the time.
> I'm so tempted to turn overscan for my PC, it might just hide the 
> watermarks and that top frame problem...
I think I found the solution to that problem, thanks to another post in 

* nvidia-settings (X In X Server XVideo Settings: 
X Video Texture Adapter|Sync to VBlank (Highly important!)
_ Video Blitter Adapter|Sync to VBlank

In OpenGL Settings:
X Sync to VBlank
X Allow Flipping.

* mythfrontend's Setup|TV Settings|Playback
X Deinterlace playback | Bob (2x framerate)
Preferred MPEG2 Decoder: libmpeg2 (I can't say I've seen a difference
here between this and Standard.)
X Enable OpenGL vertical sync for timing (RTC timing, used when
unchecked, also works fine, as long as dev.rtc.max-user-freq24
appears in /etc/sysctl.conf)
X Enable realtime priority threads (irrelevant, as I haven't actually taken
the steps to let mythfrontend run in realtime)
_ Use video as timebase
X Extra audio buffering

What happens with different settings:
* _ Video Texture Adapter|Sync to VBlank (Video tearing, so that the
  top 1/6 of the picture appears slightly behind or ahead of the rest)

I made my settings the same as above, and now I don't have the tearing at the top of the picture.

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