Picture not quite wide enough with bttv driver and ATI TV Wonder

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I have an ATI TV wonder card (regular, not value) that works fine except
for one problem -- the picture does not quite fill the width of the
window when running Xawtv or Zapping. Vertically, the picture fits fine.
But horizontally, about 5% of the left side and 3% of the right side are
black. Also, the picture looks slightly squeezed when compared to
running under Windows. I see the same problem when running full screen
or not full screen and even when starting xawtv with -noxv. I have tried
versions 0.96, 0.7.105 and 0.7.100 of the bttv driver and see no
difference. I have verified that the various bttv versions do load from
the kernel logs. I am running kernel 2.4.20 on an i815 motherboard. I am
in the US and am using NTSC. I have tried various tuner configurations
via insmod with no luck. I suspect that there is some width calculation
that is slightly off for NTSC. If someone could give me some good ideas
of where to fiddle in the source, I can try to fix it on my end.

Thanks,

Steve Haynal







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