I have some channels I get some diagonal lines on using my Samsung  
PVR500.  I thought it might be ivtv related, but I then loaded up  
Windows XP with the windows Hauppage drivers and noticed just about  
the same interference on the same channels.  I have also noticed that  
the interference is better on some days and worse on others.  This is  
leading me to believe that it is more signal related between my cable  
company and the computer hardware/PVR.

I am also still having the sound issue where sometimes when I tune in  
a channel I just get loud static that goes away when i change the  
channel.  It seems to be related to the tinny audio issue as the same  
things that help the tinny audio problem seems to help this one as  
well.   It is to the point where it happens maybe once every 50  
channel  changes/recordings, but still a little annoying.  I know I  
could run one of the scripts that are out there, but I have been lazy  
about that.

I am running an evil VIA chipset that works well for the most part as  
long as I don't use IVTV and the onboard ATA controllers, otherwise I  
get the classic random rebooting problem.  However, I am going to  
replace it with a SIS748 chipset in the next week to see if that  
helps any of my minor issues.

2 cents,

Doug

On Sep 6, 2006, at 5:20 PM, Michael Gebis wrote:

> Since nobody's answered your question on the mailing list yet, I don't
> feel bad offering up my wild guess: Is it possible there's a grounding
> issue?  Specifically, are the TV, PVR computer, and cable box all
> plugged into the same power strip?
>
> It's unlikely that grounding is your problem,  but if they're not all
> using the same power strip, it's free to try the fix. :)
>
> Good luck, and sorry I couldn't offer any real solution.
>
>
>
>
> On 9/2/06, Eric Paynter <[EMAIL PROTECTED]> wrote:
>> I've seen a few threads about diagonal lines and cross-hatching on  
>> the
>> PVR500, but I've not seen a solution. I thought I'd add to the  
>> noise with
>> some examples of what I'm seeing. I'm using ivtv 0.7.0 with a  
>> PVR500 that
>> I believe has the Samsung TCPN 2221P30A tuner (detected as TCPN  
>> 2121P30A).
>> An mplayer-transcoded sample of what I'm seeing is here (~2.5MB):
>>
>> http://www.madslab.com/sample2.avi
>>
>> The "raw" output from "cat /dev/v4l/video0" is here (~7.5MB):
>>
>> http://www.madslab.com/sample2.mpg
>>
>> I initially suspected poor signal after the splitter, but I tried  
>> cable
>> direct to TV = good picture; cable direct to PVR = this sample; cable
>> split to TV and PVR = still good pic on TV and still bad on PVR.
>>
>> Any ideas how to clean this up? I'd even be willing to accept
>> post-processing to clean it up since I rarely watch live tv on the  
>> PVR. I
>> played around with mplayer for several hours tonight and couldn't  
>> find any
>> filters that had any positive effect. :(
>>
>> thx,
>>
>> -Eric
>>
>>
>> _______________________________________________
>> ivtv-users mailing list
>> [email protected]
>> http://ivtvdriver.org/mailman/listinfo/ivtv-users
>>
>
> _______________________________________________
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