[mythtv-users] Cannot change channels with M179
walthowd at gmail.com
Mon Jul 11 11:03:23 EDT 2005
I found the problem with IVTV and the M179s is the included tuner
module. If you keep the stock tuner.ko from your kernel, then you can
successfuly tune and change channels. This is what worked for me. You
also have to manually specify the tuner type in the ivtv kernel module
On 7/10/05, Bob Weber <rjweber at ieee.org> wrote:
> On Sunday 10 July 2005 04:49 am, Dennis Hand wrote:
> > >I appreciate the help guys. I didn't get any feedback from the ivtv group.
> > I
> > >tried several versions of ivtv, including 0.2.0-rc3b. All exhibit the same
> > >behaviour: a lot of static and I cannot change channels.
> > >
> > >I tested the m179 in a windows PC, and it worked fine. I put my PVR-250
> > card
> > >in my AMD64 system, and it works fine. So, it's a problem with ivtv and
> > > the m179, at least when coupled with an amd64, it seems.
> > >
> > >When I run:
> > >> ivtvctl -I
> > >
> > >I get
> > >Check SAA7115 input signal
> > >ioctl: VIDEO_STATUS = Bad
> > >
> > >That's probably a pretty good indication of the problem, but I don't know
> > what
> > >to do about it.
> > >
> > >Come Monday, I'm going to return the m179 to avermedia and get another
> > >PVR-250. They're a little pricey, but at least I can get it to work.
> > Unless,
> > >of course, someone can save me the hassle by guiding me in the right
> > >direction. Tnx again.
> > Well I unfortunately have a alot of experience with the M179's. I'm using
> > FC3 with one of the later
> > rc3 ivtv versions on a test box and it works fine. Granted I'm not using a
> > amd64 system but that
> > shouldn't have anything to do with it. What does your modprobe.conf look
> > like? I will say the
> > M179 is very very stubborn. You usually have to trick it especially on a
> > reboot as this card doesn't get
> > autorecognized by ivtv. If your getting static then thats a good sign. What
> > I have to do sometimes
> > is change the tuner to something that doesn't work then change it back to
> > the right one. Like so,
> > ivtvctl -p 0 ivtvctl -p 3. If composite(3) is what your using.
> I've tried your trick Dennis, changing the input with ivtvctl, to 3 and backto
> 0 (I'm using the coax input), but it still doesn't work. Now, going back to
> the latest gentoo driver, I don't even get a picture, just static, or blank
> screens when I have a different input.
> I've attached my modprobe.conf file. As things look now, though, I'll return
> the m179 and get a PVR150. I think that should be easy to get working, and
> there isn't much price difference.
> > Dennis
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