[mythtv-users] Help getting TV out to work - Knoppmyth, MX400 ?

Glen Johnson gjohnson at vhcc.edu
Tue Mar 28 15:01:09 UTC 2006


> >>I have an old PC that only supports early AGP specs,  and the only
card
> >>I have found with TV-out is an NVIDIA MX400, which has a composite
TV
> >>out connection
> >>
> >>Following these instructions,
>
>>http://download.nvidia.com/XFree86/Linux-x86/1.0-8178/README/appendix-
> h.html
> >>
> >>I added
> >>
> >>HorizSync 30-50
> >>VertRefresh 60
> >>
> >>Option "TVStandard" "PAL-B"
> >>Option "ConnectedMonitor" "TV"
> >>Option "TVOutFormat" "COMPOSITE"
> >>
> >>to my X config file
> >>
> >>
> >>and installed the MX400 card  (the box already had a TNT2 card which
I
> was using via an external VGA to TV convertor).
> >>
> >>I watched it boot on the VGA monitor (which I also had connected to
the
> card's VGA out) and as it started X,
> >>the NVIDIA splash screen appeared on my TV (which had been blank up
to
> this point).
> >>
> >>Next the TV screen went gray, and showed a mouse cursor in the
middle.
> >>
> >>
> >>This is all normally what I see as it boots, and the next thing to
> normally appear is the blue background of the myth frontend.
> >>
> >>Unfortunately, it doesn't go any further.  It just sits there with
no
> hard disk activity. Looks like X is only partially initialising.
> >>
> >>I swapped the TNT2 card back in, and reverted the config file to
> previous, and now it boots normally again.
> >>
> >>
> >>Is the MX400 a problem card for linux/knoppmyth?  Is there any hope
of
> getting this to work?
> >>
> >>
> >>
> >>_______________________________________________
> >>mythtv-users mailing list
> >>mythtv-users at mythtv.org
> >>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >>
> >>
> >>
> >>
> >Take a look at my xorg.conf and use it as a reference.
> >
> >-Shawn
> >
> >
> Thanks for posting that.
> 
> Although I see nothing significantly different. In other words, other
> than the changes to NTSC, and using svideo (which I do not have, just
> composite), then it looks essentially the same in the lines that the
web
> page IO referenced told me to change..
> 
> I freely admit however, I am no expert on the format of this file.
> 
> For example, to me it seems as though you have 2 screens set-up, but
are
> currently using the Acer LCD, not the TV.
> 
> There are other differences, but I don't know what is significant, and
> also what might be because yours is xorg.conf and mine is
XF86Config-4.
> 
Did you get this working?  One thing I've found that I've not seen
mentioned here.  You could try disconnecting the VGA display, power on
the system and see what happens.  In my case with a MX4000 card
everything then showed on the composite display.


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