[mythtv-users] RE: Help!!! Garbled Video

Pete Cable petercable at gmail.com
Sun Oct 10 08:58:10 UTC 2004

I noticed you are still using the tuner=2 option in your
/etc/modules.conf. I would try editing your /etc/modules.d/ivtv and
take out any option lines and try reloading ivtv and see what happens.
These option lines are not necessary for the newer ivtv drivers.

here's mine on my gentoo box:

alias char-major-61 lirc_i2c
add above ivtv lirc_dev lirc_i2c

alias char-major-81 videodev
alias char-major-81-0 ivtv
alias char-major-81-1 ivtv
options ivtv ivtv_std=1

The ivtv_std=1 forces the card to NTSC to fix the framespergop issue....

On Sat, 9 Oct 2004 11:43:47 -0500, Thomas Lea <thomas at lea.com> wrote:
> Mike,
> When was the last time you made any changes to the firmware or ivtv drivers
> for your cards?
> I think we can rule out a) and b) because it would be incredibly unlikely
> for them to happen to both of us at the same time.
> I think c) is unlikely since I have Time Warner cable.  Time Warner PVRs
> have been in my area for a long time (and I cant think of how this would
> cause the problem).
> I have the "FreeStyle" version of the PVR-250.  I don't have Windows
> application software for them, so I haven't tried that.
> My 3 kids are young.  They keep telling me to pause a show or rewind it.
> They don't understand why they have to actually _WAIT_ for their shows to
> become available until I get this fixed.  It's funny how they just don't
> understand how most of the rest of the world uses TV.
> Thomas
> -----Original Message-----
> From: Mike Green [mailto:mikey at linuxwiz.org]
> Sent: Saturday, October 09, 2004 11:20 AM
> To: Thomas Lea
> Subject: Re: Help!!! Garbled Video
> On Saturday 09 October 2004 11:11, you wrote:
> > Mike,
> >
> > I am experiencing the same thing and it started about the same time
> > (shortly after I upgraded to 0.16).  My system has been running
> > flawlessly for exactly one year and has been the only way my wife and 3
> > kids can watch TV in my house (in other words, it's been heavily used).
> Well, the weird thing is that I kept my old lfs install on another drive,
> rebooted back into it, and observed the same garbage!  It had been working
> for around a year.  I wasn't using 0.16 until I decided at somepoint to try
> upgrading to see if that would fix it.
> I am beginning to seriously wonder if:
> a) Somehow an ivtv driver fried my pvr250.
> b) A power surge or some sort of line noise is interfering with it.
> <tinfoil hat>
> c) Since comcast recently started offering pvr's in my area, they are
> somehow crapping up signals that only their pvr's will unscramble :)
> </tinfoil hat>
> The only thing I have not tried is plugging the pvr250 into a windows box
> since I don't have a windows box.  Have you tried sticking one of your
> cards into a windows box and see if it works with the windows app that came
> with the card?  Just curious.
> This really has me pulling out my hair, I grew accustomed to having my
> mythtv and don't like not having it!  Nor does my wife :)
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