[mythtv-users] overscan compensating display manager?

Alex Halovanic halovanic at gmail.com
Wed Feb 13 02:06:07 UTC 2008


"1296x724 at 60" 75.13 1296 1328 1608 1640 724 739 746 761
"720p" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync

I'm not really clear why you're trying to make your resolution *higher*
in this altered modeline.  I'd think ideally you'd want to leave those
numbers alone and try to force the tv to shrink the 1280x720 picture
down, which pretty much wont work for any significant overscan since I
think you have to force the dotclock past values the tv will accept.

If that 720p modeline works for you, you should be able to 'underscan'
it fairly easily by simply changing the 1280 and 720 values to something
smaller (by a factor of 8 of course).  It's a bit fiddly and involves
restarting X a lot (and there are methods of changing the numbers to
move it horizontally and vertically too) but you do end up with a a
screen where any app you start will have its edges visible, not just
mythfrontend.


Alex



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