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Re: "Short" 50 Hz screen?
Posted by: Nicolas Pomarede Jun,13.2009-14:50 

This works by starting a normal screen in 50 Hz. So display starts at hbl 63.
Then at hbl 34+200=234, you would switch to 60 Hz the same you do to remove bottom border.
As the shifter will detect we're in 60 Hz at the last line of a 60Hz screen, it will disable display.
So, your screen starts at line 63 and ends at line 234, which gives 171 displayed lines.
I don't think any demo used this, as I don't see the point of shortening the screen.

Nicolas







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Topic Posted by  Date 
"Short" 50 Hz screen? RA/pdx Jun,02.2009-22:52
  Re: "Short" 50 Hz screen? Patrice Mandin Jun,09.2009-23:35
  Re: "Short" 50 Hz screen? Nicolas Pomarede Jun,13.2009-14:50
    Re: "Short" 50 Hz screen? Simon Sunnyboy / Paradize Jun,14.2009-16:34
      Re: "Short" 50 Hz screen? evil Jun,14.2009-18:16
        Re: "Short" 50 Hz screen? Nicolas Pomarede Jun,17.2009-00:01


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