[mythtv-users] Line of garbage at top of screen

[Dylan R. Semler]

David Abrahams wrote:

>David Watkins <watkinshome at gmail.com> writes:
>
>  
>
>>On 31/01/06, David Abrahams <dave at boost-consulting.com> wrote:
>>    
>>
>>>David Watkins <watkinshome at gmail.com> writes:
>>>
>>>      
>>>
>>>>On 30/01/06, David Abrahams <dave at boost-consulting.com> wrote:
>>>>        
>>>>
>>>>>When I watch recorded material on OS X there's what looks like a one
>>>>>(source) pixel line of seemingly random black and white pixels.  The
>>>>>source material is fine; I don't see the garbage when I play it in
>>>>>VLC.  Does anyone know where this comes from or what can be done about
>>>>>it?  (Trac is down or I'd have made a ticket)
>>>>>          
>>>>>
>>>>It's teletext data (VBI I think is the proper name), streaming of text
>>>>data within the video signal.  It was designed to be hidden in the bit
>>>>of the picture you couldn't see on an analog television.
>>>>
>>>>AFAIK the only way to get rid of it is to tweak your overscan
>>>>settings
>>>>        
>>>>
>>>Is that in one of the MythTV setup screens or are you talking about an
>>>xorg/XFree86.conf?  I'm running this on a Mac, so neither of those
>>>latter two are valid for me.
>>>
>>>      
>>>
>>Well for me it's a graphics card setting, set-up using the
>>nvidia-settings programme.  I'm afraid I've never used a Mac, so I
>>don't know what would be available.
>>
>>I seem to remember that there are some settings in the mythfrontend
>>setup, related to setting offsets, screen sizes and overscan.  
>>    
>>
>
>Yeah, I found the "Y displacement" setting in the TV playback screens,
>thanks.
>
>  
>
>>Also an
>>option to run myth in a window and control the windowsize.  
>>    
>>
>
>Nah, that would be too much of a PITA to be worth it.
>
>  
>
>>These might only apply to the menu screens though, rather that the
>>video, but they could be worth a fiddle with.
>>
>>It must be a common situation so I'd be suprised if there wasn't an
>>easy solution.
>>    
>>
>
>Looks like there is.
>
>Thanks for your time.
>
>  
>
Are there any other solutions to this?  I use both HD and analog tv and 
only the analog has the garbage.  If I use settings in the TV playback 
screens it effects both analog and HD and so I must compromise garbage 
at the bottom of my HD channels for clean analog channels and 
vice-versa.  Also, other video players that I've used (like tvtime) 
automatically take care of this garbage, why can't myth?