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<p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial;color:navy'>I’m
running two different resolutions, spanning desktops on vga and s-video. This
could be the problem I suppose – would unplugging the vga monitor do the
trick or do I have to boot with the output disabled?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial;color:navy'>Thanks!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:Tahoma'>From:</span></b><span
style='font-size:10.0pt;font-family:Tahoma'> mythtv-users-bounces@mythtv.org
[mailto:mythtv-users-bounces@mythtv.org] <b>On Behalf Of </b>Brian Wood<br>
<b>Sent:</b> Wednesday, June 07, 2006 10:56 AM<br>
<b>To:</b> Discussion about mythtv<br>
<b>Subject:</b> Re: [mythtv-users] video distortion</span><o:p></o:p></p>
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<p class=MsoNormal>On Jun 7, 2006, at 8:38 AM, Will Constable wrote:<o:p></o:p></p>
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<br>
<o:p></o:p></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:10.0pt;font-family:Arial'>I am running a frontend via s-video
and when I use the same TV and s-video cable from my laptop via windows I get a
perfect picture, but using linux on my myth box there is something wrong.
The color is fine but there are vertically oriented bars of distortion that
scan from left to right constantly—they are transparent in the sense that
you can see everything on the screen just fine at any given time, but they are
really annoying to look at. I am wondering if the video card itself, an
old Geforce 4 MX420 I had lying around, is just not a good enough card or might
be damaged, or if maybe a setting for the nvidia driver in my XOrg.conf could
fix this. Any suggestions?</span><o:p></o:p></p>
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<p class=MsoNormal>That card should work OK, at least it should produce
distortion-free pictures.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Is what you are seeing a "windshield wiper" type
effect ? This can be caused by another video signal that's slightly out of time
to the one you are wanting to watch, you often see it on a TV set that is
overloaded by input signal and the adjacent channel gets into the picture a
bit, or it can be caused by an overloaded cable or antenna amplifier
("cross-mod" or composite triple beat products).<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>But to see it on a pure computer video would be odd, are you
perhaps running in twinview with a different signal on the DVI/VGA output
? <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Do you see the same problem on the straight DVI/VGA output
of the card ?<o:p></o:p></p>
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