Hello,

I recently got knoppmyth to work and everything looks good (thanks to this forum and others), but I have one nagging issue that is ruining the whole experience: tv out.

I bought the SN45G(http://us.shuttle.com/specs_access.asp?pro_id=279) Shuttle XPC box with nforce 2 and integrated geforce video and tv out. The problem is that the tv picture looks horrible, most notible is the red tint to everything, also the picture does not fill my whole tv tube like it did when I just connect the cable directly to the tv tuner.

I have spent several hours trying to find an answer for this problem but come up short. I tried installing nvtv, but it does not support this particular geforce card. Any ideas are greatly appreciated... if this is not fixable, can anyone recommend a good cheap tvout card that I can put into the free agp slot?

Have a good weekend,
Alex Matviychuk

Don't know why it is very red....As for it not filling the entire screen, have you tried Option "TVOutOverscan" "1.0"?

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cesman

When the source is open, the possibilities are endless!

well for the not filling the entire screen 1.0 may be a bit much if it is way overfilling the screen with that try backing down by 0.1 incriments. I think mine is about right at 0.6 or 0.7 somewhere around there.

As for the redness, it is a common problem with the nvidia tv out. The best solution I have come up with is to go into setup and choose the option to use xv color controls. I think it is in the tv playback setup. Then you can press f a couple of times and play with turning the color down and posibly brightness up. I can't remember I just played with the settings till I got them pretty good.

This is satisfactory for me, but I have heard some people say it's too washed out for them, but at any rate it is much better than the red.

Using the "F" key while watching TV I made the red tint go away and the birghtness is back to normal. In fact it is very close to the original picture.

As for the overscan, I tried adding the Option "TVOutOverscan" "1.0" to /etc/X11/XF86Config-4 and rebooted the system, but it seems to be the same as before. Am I adding this to the correct file? I added it right under where the install guide said to put Option "ConnectedMonitor" "TV" (under Section "Monitor"). In any case everything is looking much better now.

Thanks for taking the time to help me.

it should be



well 0.6 was the closest mine came like I said 1.0 was way too much.

Yes that worked out great, 0.6 was the best option in my case as well.

Also I was putting the option in the wrong spot. I just recently found this guide (http://wilsonet.com/mythtv/) and it has some good info about editing the XF86Config file, in particular I used:

Section "Device"
Identifier "card0"
Driver "nvidia"
VendorName "Shuttle"
BoardName "nVidia GeForce 4 MX"
Option "RenderAccel" "1"

# TV Out Setup
Option "TwinView"
Option "TwinViewOrientation" "Clone"
Option "SecondMonitorHorizSync" "30-50"
Option "SecondMonitorVertRefresh" "60"
Option "MetaModes" "1024x768, 1024x768; 800x600, 800x600; 640x480, 640x480;"
Option "TVStandard" "NTSC-M"
Option "TVOutFormat" "SVIDEO"
Option "TVOverScan" "0.6"
EndSection

Using these settings has also made channel switching a little bit quicker and the picture looks crisper (of course these observations are subjective).

This is great great data. Can u advise a newbie on how to edit th XF86.. config file when it is read only. I am a simple kinda xedit guy working my way around.

Thanks

You just need to be logged in as root to edit XF86Config-4,

I tried using my Mx440 S-Video out on my Knoppmyth box, but like so many others have posted - the picture is just too faded for me. It was a royal pain to get the nVidia drivers working only to not like this setup very much.

My temporary solution, with I am pretty happy with picture-wise, was to insert a GrandTec Video cable between my Myth box VGA out and TV. I don't use the nVidia drivers at all. Although I wanted a solution that fits all inside my box, this is a very small form factor, and is hidden behild the unit. Has any1 else gone this route? It may be good for anyone having tv-out issues.

http://www.tigerdirect.com/applications ... &CatId=316

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Where all think alike, no one thinks very much.
- Walter Lippmann