<br><br><div><span class="gmail_quote">On 9/21/05, <b class="gmail_sendername">domain</b> <<a href="mailto:domain@varga.co.uk">domain@varga.co.uk</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Brian Steele wrote:<br><br>><br>><br>> On 9/21/05, *<a href="mailto:mythtv@varga.co.uk">mythtv@varga.co.uk</a> <mailto:<a href="mailto:mythtv@varga.co.uk">mythtv@varga.co.uk</a>>*<br>> <<a href="mailto:mythtv@varga.co.uk">
mythtv@varga.co.uk</a> <mailto:<a href="mailto:mythtv@varga.co.uk">mythtv@varga.co.uk</a>>> wrote:<br>><br>><br>> >><br>> >> > System specs:<br>> >> ><br>> >> > Myth
0.18<br>> >> > Nvidia FX5200, 7667 drivers<br>> >> > 2x HD-3000 capture card<br>> >> > 800x600 through TV-out over s-video.<br>> >> ><br>> >> > I had my Myth system setup and everything was working
<br>> great...until<br>> >> the fan on the video card went bad and the system started locking<br>> >> up.<br>> >> ><br>> >> > I was using a Nvidia 6200 AGP video card but I replaced it with a
<br>> >> fanless FX5200 card. After I replaced the video card and rebooted,<br>> >> the Myth interface looked exactly the same as before, filling the<br>> >> screen with very little overscan. I then attempted to playback some
<br>> >> recorded TV and discovered that on 16:9 material, at least<br>> 10-15% of<br>> >> the picture is missing on the right side. 4:3 material seems to<br>> work<br>> >> fine.
<br>> >> ><br>> >> > This did not happen with the 6200 card. I didn't change any<br>> settings<br>> >> in .nvidia-settings-rc or in XF86Config-4, so I don't know what's<br>
> >> causing this. Does anybody have any ideas?<br>> >><br>> >> Different video cards sit the screen in slightly different places,<br>> >> it's just a fact of life. You'll need to tinker with the
<br>> modeline in<br>> >> the XF86Config-4 file, just take it slowly.<br>><br>> > I don't think that's the problem. The X desktop and the Myth UI both<br>> > look correct. Neither of them is getting 10-15% of the picture
<br>> chopped<br>> > off on the right side. I only see the problem during 16:9 video<br>> > playback. I have Myth configured to use the same video mode for<br>> the GUI<br>> > and for playback, so it isn't that either.
<br>><br>> Are you definitely running your desktop in the same 16:9 mode?<br>> Do you have any other modelines defined?<br>><br>><br>> I really appreciate the help.<br>><br>> My desktop is definitely running at 800x600. This is a 4:3 mode.
<br>> There are other modelines defined, but as I said before I didn't<br>> change anything in XF86Config-4 when I switched video cards. I'll<br>> delete everything besides 800x600 to see if it makes a difference.
<br>> The Myth UI is running full screen.<br>><br>> Let me try to clarify the problem.<br>><br>> Desktop resolution is 4:3, displaying on my TV via s-video.<br>> I'm recording OTA HD.<br>><br>> 4:3 shows that were broadcast with 16:9 aspect ratio display with grey
<br>> bars on the sides. Changing Myth to 16:9 Zoom aspect ratio makes it<br>> use the full screen. This is the behavior I expect.<br>><br>> 16:9 shows that used to take the full width of the screen with black
<br>> bars at the top and bottom now have 10-15% of the picture pushed off<br>> the right hand side of the screen. Regardless of what aspect ratio I<br>> tell Myth to use for display, some of the picture is always lost.
<br>> 16:9 stretch seems to be the closest to keeping all the picture. With<br>> my old video card, I could leave the myth aspect ratio set to<br>> "default" and I wouldn't lose any picture.<br>><br>
That's exactly my point, 16:9 goes off the screen, it doesn't matter if<br>it's the desktop or Xine.<br>All s-video out graphics cards generate an analogue signal, just because<br>you're using the same modeline with the new card as with the old one
<br>doesn't necessarily mean that the picture will appear in the same place<br>on the tv/monitor. The modeline controls the pixels x-y, the physical<br>width-height and the x-y positioning on the screen, but it's all<br>relative due to inconstancies in the hardware.
<br><br>Remove all the modelines apart from the ones you need, find a good<br>modeline explanation on Google and start tinkering.<br>Adjust them a little at a time and with a bit of work, you'll be able to<br>tweak it so it's perfect.
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I understand what you are saying, but could you please explain to me
how or why Myth is switching to a different modeline during video
playback? It shouldn't be doing that should it? The
modeline I'm running is 4:3, and the picture doesn't go off the screen
when viewing the X desktop or the Myth UI. Why would it suddenly
switch to a different modeline for video playback? Shouldn't it
just scale the 16:9 video to fit the 4:3 modeline?<br>
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