NVIDIA 7600GT - some quality issues

[fbures]

System: NVIDIA 7600GT, AMD LX60
SW: SageTV 6.1.8, NVIDIA PureVideo postprocessor, VMR9
TV: "HD compatible" set to 1024x768, SD content, S-Video cable connection.

Problem: When watching a recording the picture sometime looks like viewed through a law quality window glass. I do not know how to describe it correctly but it remains me of looking through a glass that does no have flat enough surface (inconsistent width) while moving my head. Some pieces of the scenery would be shifted against other pieces for a very short period of time. It occurs mostly when camera is fast panning. Whole horizontal blocks of the picture would get slightly out of sync with the rest of the picture and then get smoothly reintegrated back. It is NOT pixelization, nor it is stuttering at least in the sense I understand the term.

Questions:
1. Have anyone experienced anything like that? Solutions?
2. Should I set the TV to standard SD resolution? I like what 1024x768 does for SageTV menus though.
3. What are the recommended noise suppression and edge enhancement settings for 7600GT?

This is my new HW. In the past I was using PVR-350 TV output and did not have similar problems.

Thanks
Frank

[gplasky]

Originally Posted by fbures

System: NVIDIA 7600GT, AMD LX60
SW: SageTV 6.1.8, NVIDIA PureVideo postprocessor, VMR9
TV: "HD compatible" set to 1024x768, SD content, S-Video cable connection.

Problem: When watching a recording the picture sometime looks like viewed through a law quality window glass. I do not know how to describe it correctly but it remains me of looking through a glass that does no have flat enough surface (inconsistent width) while moving my head. Some pieces of the scenery would be shifted against other pieces for a very short period of time. It occurs mostly when camera is fast panning. Whole horizontal blocks of the picture would get slightly out of sync with the rest of the picture and then get smoothly reintegrated back. It is NOT pixelization, nor it is stuttering at least in the sense I understand the term.

Questions:
1. Have anyone experienced anything like that? Solutions?
2. Should I set the TV to standard SD resolution? I like what 1024x768 does for SageTV menus though.
3. What are the recommended noise suppression and edge enhancement settings for 7600GT?

This is my new HW. In the past I was using PVR-350 TV output and did not have similar problems.

Thanks
Frank

You're going to need a better connection to your TV than s-video. If your TV is HD compatible do you have a vga connector or a component connector on it? Or HDMI?

Gerry

[fbures]

Originally Posted by gplasky

You're going to need a better connection to your TV than s-video. If your TV is HD compatible do you have a vga connector or a component connector on it? Or HDMI?

Do you suggest that the culprit is the S-Video connection to TV?
When using PVR-350 for output I ran S-video connection with no adverse effects. My cable-box is connected via S-video too (it does not have anything better). Hopefully XFX will send me an adapter cable to connect component video cable to my 7600GT - the cable was missing in the box when I purchased the card. I intend to try it but I am somehow skeptical that it will solve the problem.

Cheers
Frank

[bcjenkins]

What connectors does your TV have?

[fbures]

Originally Posted by bcjenkins

What connectors does your TV have?

My TV is used as a monitor only, connected via Component and S-video to my ONKYO receiver. S-VHS VCR's, cable box and SageTV are connected via S-video, DVD player is connected via component. In fact the situation is rather more complex as the several years old ONKYO flagship does not convert between video connections and therefore all VCR's, cable box and DVD are also connected via all other available connections. However, those mentioned are those that I normally use.

Yesterday I experimented with "Edge enhancement" "Noise reduction", 'Reverse telecine" and "optimize for NTSC" and the problem seems to have gone. I am in the process of calibration of the new setup as well so the situation is currently kind of fluid. I just wanted to know if that crooked-glass syndrome is something that has been known to happen.

Cheers
Frank

[fbures]

Just for the record:

The crooked-glass syndrome is gone, overall calibration (including DVD player connected via RF modulator to all tuners) produced almost perfect picture. Two issues are outstanding though:
1.
The level of black seems to be a bit high though the calibration gray scales look OK.
2.
I have a bit of interference in the output signal in form of an almost invisible moire. It happens intermittently and no matter which tuner or S-video source was used to capture the video.
Hopefully rewiring the output from my 7600GT via component video instead of rather cheep looking S-video cable I am using now will remove the noise.

Cheers
Frank