Fuzzy channels all of a sudden...

[nellanayrb]

Hi, for months now I've been using GBPVR to record shows and watch live television, and the picture has always been the same as any other tv in my house. All of a sudden about 3 weeks ago I noticed that half the channels were extremely fuzzy, in black and white, and impossible to watch. However, many of the other channels work fine, same as before. I figured that it must be a problem with my cable company or a bad splitter / cable, etc... but I have connected another TV to the line going to my computer and the picture is perfect on all channels. So I thought that maybe the card had gone bad, but when I run the Hauppage win2000 program that came with it, once again, the picture is perfect on all channels.

I've tried clearing and updating the EPG and I updated to the newest version of GBPVR, but still the problem persists.
I talked to my cable company and they said that the television would need to be set to 'HRC' cable or else the picture might be slightly out of tune on certain channels. I have seen a setting like that on many real tvs but not in this program anywhere. Maybe I'm overlooking something, but I've looked through the forums and wiki and found nothing.
I cant figure out why this problem suddenly appeared.... I did not change anything at all with my pvr settings, or in gbpvr.
My card is the Hauppage PVR150, I live in the US and have comcast cable.

[stefan]

I think that wintv2000 does some magic to fine tune to the channels (which gbpvr does not). If your cable company altered the frequencies slightly, your tv sets might adjust themselves automatically so you never notice.

If you can find out exactly which frequencies your channels have (either from your cable company, or perhaps by running tuning assistant and writing down the frequencies found) you can enter them by hand in the config app. You enter them instead of the channel number in the capture source tab.

[stefan]

There are quite a few other approaches here:
http://gbpvr.com/pmwiki/pmwiki.php/Confi...elMappings

[nellanayrb]

Ok I'll give that a try and report back on the results. I had tried the tuning assistant before, but was unsure of how to enter the frequencies into gbpvr.
So I will enter them in place of the 'source channel' number in the 'edit recording source' window?

Also, in the tuning assistant, the picture for the problem channels is just as bad as in GBPVR for that channel. So is the tuning assistant even going to be telling me the right frequency to enter?

Edit: I called Comcast (my cable company) and asked them if they had changed their frequencies, and if they could direct me to a list of all the channel frequencies... and they had no idea about either. (no luck google'ing them either)

[fatbaldbob]

Maybe this is a driver thing...have you just done a driver update, or even a Windows update recently? Your PC may have done this automatically if you have it scheduled.
It's a long shot, but maybe worth investigating if all else fails.

[stefan]

Ok I'll give that a try and report back on the results. I had tried the tuning assistant before, but was unsure of how to enter the frequencies into gbpvr.
So I will enter them in place of the 'source channel' number in the 'edit recording source' window?

Yes

Also, in the tuning assistant, the picture for the problem channels is just as bad as in GBPVR for that channel. So is the tuning assistant even going to be telling me the right frequency to enter?

Well, maybe the problem isn't with the frequencies at all, and then the answer would be no. But what you can try is to use the frequency found by TA, and then change it a bit, perhaps in steps of 500, up or down and see if it (the picture ;-)) becomes better.