Static on some channels with gbpvr.

[elricfate]

Well let me be as detail oriented as possible here.. I'm not much for the inner workings of codecs, or filters, or anything like that. But I know a small bit of general knowledge.

Anyways. I have a Hauppage WinTV PVR 150 (mod: 26032 rev: C199) and it generally works very well. At any rate, wintv tunes in channels perfectly. However one night while playing around with the buttons on my remote (45 button remote) I messed something up.

It happened when I went to live tv mode without being on any channels. I hit the "prev chan" button (ctrl + w) and all of a sudden the channel went staticy. For a few days it was just the one channel (cartoon network, god help me) so I was using wintv2k to tune it. Now, however, it seems as though there are blocks of channels that are showing the symptom ... I tried the tuning assistant to see if maybe I lost the exact frequencies, but they're showing the same in the preview window as they do in gbpvr.

As I said, wintv2k tunes everything fine. So I uninstalled gbpvr, removed all the registry entries I could find, and reinstalled. Same thing. It can't be a driver problem because if it was, wouldn't wintv2k not bother working?

Does *anyone* have any suggestions?

Oh yea, I tried different decoders and filters and whatnot, changed them around and nothing worked. Also, the system has a 2.2ghz processor, and 1gigabyte of ddr. So... It's not hardware related (I would think.)

[sub]

The only common reason I've seen for this, is if the user has tried other TV software... some of these modify the system tuning spaces registry settings, which stuffs things up for other directshow applications like GB-PVR.

[elricfate]

Well... I tried other applications BEFORE gb-pvr.

Since then, they've all been uninstalled.

The thing is... this only happened when I hit the "prev chan" button. And since then it's been spreading.

Is there a way to possibly clean it to a fresh state and try again? And if so, could you outline it?

[stefan]

When applications screw up tunings for you, they usually do that by overriding stuff in the registry.
I would do this:
Take a backup of your registry, or at least the folder that you are about to delete, so that you can restore it if I am wrong =) Then go into the registry and delete the folder

HKEY_LOCAL_MACHINE\Software\Microsoft\TV System Services

and everything in it.

I just checked on my machine at work, and that folder does not exist here. So if you don't have that folder, don't worry. But that would of course mean that that is not your problem, and hence my solution (if it is indeed a such) does not apply =)

[stefan]

Btw, this will mess things up for any applications that depend upon those registry keys being there. But since you uninstalled them, that shouldn't be a problem for you.

[stefan]

And, please, do take a backup of the registry first =)

[elricfate]

Stefan, if I could kiss you... man, I would.

I deleted the autotune folder inside of the TV System Services... rebooted, started up gbpvr, and bam, works perfect.

[stefan]

Glad I could help =) My wife wouldn't appreciate the kissing, though, so...