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Discussion Starter · #1 ·
Hi,

I had this all set up and working great a couple years ago.

Then I had to move twice, and the computer sat for a year or so, while the TV got some use just with a cable box.

My set up is an ATI AIW 8500, along with a MyHD MDP100 in a home theater PC, which I have connected to a Mits 48313 RPTV, using the ATI dongle, and a breakout cable for VGA to RGB. I've tried it directly out from the dongle, or like I used to with the MyHD loopback cable.


Like I said, this was all working great with Karnis' custom timings using powerstrip for several resolutions. TV still looks great with DVDs and HD.


Now I've finally settled into a new place with the space to set this all up again.

The computer is working fine, and I can get a stable image on the TV screen, especially at some lower resolutions. Even 1776x1000 and 1920x1080 look ok with the PC desktop. But now I have some annoying scan lines moving up the screen, usually darker bands (only with with the TV, using remote monitoring of the HTPC screen, it looks fine). Tweaking the timing doesn't seem to help. I tried reloading all the custom timings, updating ATI catalyst, etc, but nothing helps.


Any ideas what would be causing the scan lines (if that's what they are)? They are not there with the cable box, or any other input. Only the PC, even if I move it to another component in. Could this be due to some kind of interference with the cable running to the TV? Power lines, etc? If so, what is the best way to sheild from that, if moving the cable is not an option?


Thanks,

Shawn
 

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Discussion Starter · #2 ·
Update:


I was hoping that by re-routing the cable to not be near any power lines, the issue would resolve. I'm still seeing dark and light bands, slowly moving up the screen, only when I'm displaying the HTPC's desktop. The TV seems fine with any other source.

Anyone have any other thoughts on what to try to get rid of these bands, or what else may be causing it?

Would using something like the Audio Authority 9A60 be any help?


Thanks,

Shawn
 
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