[mythtv-users] Hauppauge 2250

Neil Cooper neilcoo at yahoo.co.uk
Mon Aug 1 17:47:26 UTC 2011

--- On Sat, 7/30/11, Raymond Wagner <raymond at wagnerrp.com> wrote:

> From: Raymond Wagner <raymond at wagnerrp.com>
> Subject: Re: [mythtv-users] Hauppauge 2250
> To: "Discussion about MythTV" <mythtv-users at mythtv.org>
> Date: Saturday, July 30, 2011, 12:00 PM
> On Sat, 30 Jul 2011 13:41:17 -0500,
> Keith Pyle <kpyle at austin.rr.com>
> wrote:
> > I'm running kernel 2.6.38 with mythtv 0.24
> fixes.  I've successfully
> > used a 2250 for digital captures
> (/dev/dvb/adapterN/frontend0) but
> > haven't gotten analog (/dev/videoN) to work yet. 
> I have the latest
> > posted firmware for the card.  I can tune and
> capture from the analog
> > device outside of myth, but the quality is poor even
> though using the
> > same cable that provides good input to a
> PVR-500.  Obviously, this is
> > the first problem.
> You may want to try cranking up the bitrate MythTV sets the
> card to record
> at.  Or, once you get the card working in MythTV, you
> may find the defaults
> set for the card were simply extremely low.
> > I tried setting it up in Myth as an "Analog V4L
> capture card" and a
> > channel scan shows "Locked" and 99% signal strength,
> but recording in
> > myth fails with the following log entries:
> Correct.  The card is not an Analog V4L card, and
> unlike the older -150s
> and -500s, I do not believe it even offers the option of
> operating as a
> framegrabber through an alternate device.
> > As an ivtv MPEG device in Myth, Myth will record but I
> get a solid blue
> > image rather than the target program, as though it was
> was not tuned to
> > the target channel.  The log entries are:
> Make sure MythTV is set to record using the proper
> input.  You may also
> consider connecting something like a DVD player to the
> baseband inputs,
> just to test if MythTV is trying to use those rather than
> the tuner.
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I have a 2250-based mythtv setup working mostly fine, except very occasionally I get a show recorded with the blue screen too.

It looks very much like there is a software bug that gets triggered occasionally when channel/input changing, possibly between analog and digital inputs. If I watch live TV and manually switch inputs and channels enough times like 1 in 20 times I'll get the same blue screen you're getting instead of a channel.

The reason I say it appears to be a software bug, is that its NOT consistently the same channel or tuner that gives me a blue screen. After a blue screen I can go tune something else then tune right back (using the same tuner and channel) and it will work fine the next time.

Before others suggest it, In the mythtv-setup tuner config yes I have already made sure that the settings are to open each tuner on demand (which is not the default) and to NOT grab EPG data (which is also not the default).

I have seen other 2250 owners report here similar findings too so its not just a limited problem, however the exact way it manifests itself on different systems does not appear to be consistent either.


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