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hdtv aspect is wrong, 16:9 content stretched
http://forums.linhes.org/viewtopic.php?f=15&t=7899		 Page 1 of 1
Author:  chaosfire [ Sun Jan 15, 2006 10:03 pm ]
Post subject:  hdtv aspect is wrong, 16:9 content stretched
I'm just getting my mythbox working, and I go to an HDTV channel and it displays as if the content is 4:3, i.e. it's stretching it so there's letterbox on the video. If I watch the show directly from the cable box it formats it correctly, 16:9. The mythtv interface displays correctly at 16:9.

When I force the aspect ratio to display at 4:3 it seems like it looks correct. Is this a problem or just a quirk?

And how would I correct this problem with DVDs? I don't know if the default player for DVDs is mplayer, but it is for my install. How would I change that?

Thanks for the help.

I'm not actually running Knoppmyth, but this doesn't seem like a FC4 issue, it seems like mythtv.

System Specs:
Athlon64 3000+
nForce4 motherboard
geForce 6600
Sound Blaster Audigy
Motorola 6200 STB via Firewire
Fedora Core 4
MythTV 0.18.1

if you'd like to know anything more, I'll gladly post it. If anybody wants to see my xorg.conf file I can put that up as well.
Author:  cesman [ Mon Jan 16, 2006 12:57 am ]
Post subject: 
It isn't a MythTV issue, it is an issue for whatever you are using to playback the DVD. If you are using MPlayer, you need to add "-monitoraspect 16:9" to the line that configuration settings.
Author:  ceenvee703 [ Mon Jan 16, 2006 7:46 am ]
Post subject: 
And if you're using xine to play DVDs, you need to modify your XF86Config file and add a DisplaySize line that is in the proper 16:9 ratio:

http://xinehq.de/index.php/faq#ASPECTRATIO

As for your HDTV displaying incorrectly, what modeline are you using? Is it 16:9 or 4:3?
Author:  chaosfire [ Mon Jan 16, 2006 2:37 pm ]
Post subject: 
Quote:
It isn't a MythTV issue, it is an issue for whatever you are using to playback the DVD. If you are using MPlayer, you need to add "-monitoraspect 16:9" to the line that configuration settings.


thanks, worked perfectly

Quote:
As for your HDTV displaying incorrectly, what modeline are you using? Is it 16:9 or 4:3?


how do I check my modeline? and how do I change it?
Author:  ceenvee703 [ Mon Jan 16, 2006 8:38 pm ]
Post subject: 
You set the resolution that your system uses by creating a modeline and setting XFree86 or X.org to use that modeline. Most distros include modelines that work with monitors. They usually include standard 4:3 modelines like 1024x768 or 1600x1200. You may have to add or uncomment modelines that give you 16:9 aspect ratios.

With KnoppMyth the doc you'd change is at /etc/X11/XF86Config-4. No idea what FC4 or X.org uses; I'd advise reading up on how to change resolutions with FC4. This is pretty standard stuff and you should be able to find a number of HOWTOs.
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