[mythtv-users] TVOverScan works, but can't center picture

Gregory J. McGee gjmcgee at cableone.net
Fri Apr 2 11:40:24 EST 2004

The modelines need tweaking, or the offsets may be settable in myth, but
I'm sure you tried that.

xvidtune is a little program that will interactively tweak your
XF86Config for you. It has been around for years, and will likely do
what you want (I don't use TV out yet, but centering/sizing is what
xvidtune is FOR, so it should work)

xvidtune used to be a std part of most (all?) distros, maybe p/o XFree.

> Message: 18
> Date: Thu, 01 Apr 2004 20:47:05 -0800
> From: Mike Jasper <e394td at comcast.net>
> Subject: [mythtv-users] TVOverScan works, but can't center picture
> To: Discussion about mythtv <mythtv-users at mythtv.org>
> Message-ID: <406CF049.5090501 at comcast.net>
> Content-Type: text/plain; charset=us-ascii; format=flowed
> I played around with XF86Config for my GeForce4 MX 440 card, and was 
> able to get the entire picture on screen with
>         Option  "TVOverScan" "0.3"
> However, the picture is flush with the left of the screen while having
> a 
> lot of extra space on the other three sides.  If I could just get the 
> picture centered I could probably use an overscan setting of 0.5.
> In myth I've tried changing various combinations of TV Settings > 
> Playback > Overscan > Scan Displacement --and-- Appearance > Scan 
> Settings > GUI X Offset (with "Use GUI Size for TV Playback" checked).
> But none of these make a difference, even if I restart mythfrontend,
> and 
> even if I put in wildly large values.
> Am I missing something?  From what I understand, there's no XF86Config
> setting that will help center the image.  Right?
Gregory J. McGee <gjmcgee at cableone.net>

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