[mythtv-users] Displaying 1080i on 4:3 standard TV

[Kichigai Mentat]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Mar 22, 2006, at 09.00, Mike Schlottman wrote:

> I tried this last night and the 720x480 mode line helped.  I am now  
> able
> to use 16:9 stretch aspect override to get HD content displayed  
> better.
> What I have now is the image is centered.  Instead a big section of  
> the
> right side cut off, a smaller portion of both the left and right is  
> cut
> off.
>
> I think I might try another modeline tonight that is 640x360.
>
> I'm not sure what you mean by overscan.  I don't think you are  
> referring
> to the displayed image being larger than the TV.

Actually, that IS what he is referring to.

>   I can adjust that with
> nvidia-settings.  I had played with the separate video settings for  
> gui
> and video.  None of the changes I made, ever made sense compared to  
> the
> output.  I only ended up with video that was twice as wide as it was
> before, so that even less of the picture showed up on the screen.  I
> have not seen any good explanations of how to configure these  
> settings.
>
>        mike

P.S. please try not to top-post.

>
>
>> -----Original Message-----
>> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
>> bounces at mythtv.org] On Behalf Of Steven Adeff
>> Sent: Tuesday, March 21, 2006 5:08 PM
>> To: Discussion about mythtv
>> Subject: Re: [mythtv-users] Displaying 1080i on 4:3 standard TV
>>
>> On 3/21/06, Mike Schlottman <mschlott at spe.org> wrote:
>>>>
>>>> X11 is the standard unaccelerated video output. -vo tells mplayer
> to
>>>> use it instead of Xv for example.
>>>>
>>>> Try using the 7676 drivers.
>>>>
>>>> is your 4:3 tv an SDTV or an HDTV?
>>>>
>>>> have you looked at the output on a monitor?
>>>>
>>> I have not looked at it on a monitor yet.  I got bogged down in
> playing
>>> with X settings last night.  That is also on the todo for tonight.
>>>
>>> My TV is SDTV.   It is an older Panasonic with S-video and Composite
>>> inputs.  I don't have any way of connecting the composite inputs
> though.
>>>
>>>      Mike
>>>
>>
>> Ok, was getting confused. You'll want to setup for S-Video output for
>> 480i. to your TV. Your modeline should be something around 720x480.
>> YOU WILL GET OVERSCAN. Its inherint in how TV's work. You can play
>> around with the modeline to try and eliminate it. Theres plenty of
>> posts in the list you can search through on this, and probably some
>> articles in the Wiki that will help. You can also tell Myth to
>> compensate for the overscan to "shrink" the output area of the videos
>> and gui.

See?

>>
>> as for playing back HD content, it should work, it will be scaled to
>> 720x480 (or whatever your final modeline resolution is). It should
>> include black bars on top and bottom if everything is setup correctly
>> as well. It should look much better than the non-hd station but will
>> obviously not be as good as a true HDTV.
>>
>> You'll also still need the increased processing power to playback the
>> streams.
>>
>> --
>> Steve
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (Darwin)

iD8DBQFEIlEJwAwn3hu8KxcRAs7MAJoCyad7EDNuZ8jBtJY7yaT5xjBNWACeJllV
E3k2m4d4XOMf0BNJ+Pm7dSo=
=Fk/2
-----END PGP SIGNATURE-----