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<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'>Yea-
my current setup is s-video via homemade cable—40 ft of cat 5 with s-video
and audio connectors at each end, running through the walls- I know, sounds
like a recipe for disaster. But my laptop drives a <i>perfect</i> signal
from one end to the other while I have this problem with the myth box. So
I am thinking its either the card or the settings/driver.. I have been
using nvidia instead of nv, but have not tried a whole lot of options for
resolution on my vga port. I was thinking it would be good to try
identical settings and do a clone, but I don’t know how to write xorg.conf
for that—mine does dual screens not using xinerama. It does occur
to me though, that the setup I have upstairs is 1024x768 on s-video and
1600x1200 on vga—while the monitor downstairs cant run 1600, maybe this
setting would make the interference go away. Do you know how to set up
xorg for clone? Also, can I set the horizsync and vertrefresh of my vga
monitor to match what my tv uses, or might this cause a problem?<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>
<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'>-will
<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> Thursday, June 08, 2006 9:45 AM<br>
<b>To:</b> Discussion about mythtv<br>
<b>Subject:</b> Re: [mythtv-users] Stupid S-Video Problem Continues</span><o:p></o:p></p>
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<p class=MsoNormal>On Jun 8, 2006, at 7:11 AM, Will Constable wrote:<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 experiencing what one user described
as a winshield-washer effect on my TV—bars that (depending on the moment)
are oriented in a diagonal or vertical manner and scroll from side to side on
the screen. I have tried goofing around with the s-video
connector—I unplugged VGA and turned off the monitor and moved the PC to
the middle of the room where it might have less interference form other nearby
electronics—no luck . I tried putting a friend’s Geforce 3 in place
of my Gefore 4 mx but it wouldn’t run the same xorg.conf I had made and I
don’t know the ins and outs of the nv driver… I think my card is
causing the problem, but it could be settings like horizsync and
vertrefresh. I have tv set to h:50-70 and v:60-60. Does anyone know
about any other ‘options’ that I could add to the device settings
that might improve image quality? I would be willing to disable vga and
have only TV out but I don’t know how to get my xorg.conf to do
that. Any help would be great!</span><o:p></o:p></p>
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<p class=MsoNormal>So do I understand correctly that you running VGA and
S-Video at the same time ? <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>What you describe is interference between the two video
signals of differing frequencies. If the problem still happens with the cables
disconnected then your problem could well be with your card.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>The cards are supposed to be designed to be able to do this,
but the early ones especially had some problems.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I don't see how it could make a difference, but you might
want to try the nVidia driver instead of the generic nv one. That driver is at
least intended for multiple outputs but I am not sure about the nv one.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Running your VGA signal at a different resolution might make
the problem less obtrusive (or worse).<o:p></o:p></p>
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