[mythtv-users] Adding HVR-1600 to working PVR-500 mythtv setup -> no NTSC signal on HVR-1600 & ATSC guide info missing (comcast Mountain View, CA)

Matt Beadon matt.beadon at gmail.com
Fri May 1 02:57:16 UTC 2009

As an easier followup question:
Does the cx18 driver support Hauppauge model 74591?
I see lots of references to model 74041 online but not much for the 74591.
 I haven't even figured out what the difference is but I'm wondering if that
is causing the following error:

cx18-0: tveeprom cannot autodetect tuner!


Date: Thu, 30 Apr 2009 13:15:28 -0700
> From: Matt Beadon <matt.beadon at gmail.com>
> Subject: [mythtv-users] Adding HVR-1600 to working PVR-500 mythtv
>        setup ->        no NTSC signal on HVR-1600 & ATSC guide info missing
> (comcast
>        Mountain View, CA)
> To: mythtv-users at mythtv.org
> Message-ID:
>        <7a6963500904301315l1d1e28c6qde399bcbf64bf17a at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
> Hi,
> I have a mythtv 0.21 setup running on debian lenny.  It is my first
> experience with myth so it took me ages to get everything configured
> correctly.  However now Comcast in Mountain View is cutting all analog
> cable
> for channels >34 so I'm forced to add a ATSC cabability or lose most of the
> channels I watch.  :(
> Here's where I am so far:
> I followed the procedure here:
> http://www.mythtv.org/wiki/Hauppauge_hvr-1600
> My first problem was that using the HVR-1600 with the PVR-500 my
> /dev/video*
> devices moved around on me depending on cold boot or warm reboot.  So I
> created a set udev rules (below) to give me a consistent place to link my
> various tuners.
> /etc/udev/rules.d/56-custom.rules:
> > KERNEL=="video[0-2]*", ATTR{name}=="cx18*0 encoder MPEG*",
> > SYMLINK+="HVR-1600"
> > KERNEL=="video[0-2]*", ATTR{name}=="ivtv0 encoder MPG*",
> > SYMLINK+="PVR-500_1"
> > KERNEL=="video[0-2]*", ATTR{name}=="ivtv1 encoder MPG*",
> > SYMLINK+="PVR-500_2"
> > SUBSYSTEM=="dvb", DRIVERS=="cx18", SYMLINK+="HVR-1600_digital"
> >
> Probably the last one is unecessary but I don't think it hurts anything
> (?).
> Problem #1: No video on /dev/HVR-1600 (analog)
> dmesg reports that the HVR-1600 was initialized.  The only odd message I
> see
> is:
> > [   16.838687] cx18-0: tveeprom cannot autodetect tuner!<6>cx18-0:
> > Simultaneous Digital and Analog TV capture supported
> >
> Haven't been able to figure out if the tveeprom msg is important or not?
> Using mplayer to test the various video devices I can see video on
> /dev/PVR-500_* but "mplayer /dev/HVR-1600" gives me nothing but static.
> Just for kicks I also tried "mplayer /dev/video0, 1 and 2.  Right now
> HVR-1600 is video1 with PVR-500 on 0 & 2.  As expected video0 & 2 work fine
> and video1 shows nothing but static.
> As further confirmation I tried "ivtv-tune -c 47 -d /dev/video[0-2]" which
> gave me:
> > /dev/video0: 361.250 MHz  (Signal Detected)
> > /dev/video1: 361.250 MHz
> /dev/video2: 361.250 MHz  (Signal Detected)
> >
> Suggestions for problem #1?  The only thing that I haven't tried yet is
> swapping the cable I'm using from the splitter between the analog and
> digital inputs on the HVR-1600.  I'll try that tonight though I think it's
> unlikely that I have a bad cable.
> Problem #2: No guide data for ATSC channels
> After scanning for both QAM-256 and QAM-64 channels using "-" (minus) as
> the
> channel separator (since that matches the schedulesdirect listing better).
> I have found a bunch of unecrypted channels that myth can tune.  I added a
> schedulesdirect lineup for "Comcast - Digital" and setup my DVB tuner as
> described in the HVR-1600 wiki.  Fired up the backend and frontend after
> running mythfilldatabase but all the channels were listed as unknown.  I
> could tune in a bunch of channels but without listing data why bother?
> So after a bunch of searching online I got the idea that maybe
> schedulesdirect "Local Broadcast Listings - Antenna" seemed to more closely
> match the channels I was tuning.  So I switched my input connection for the
> DVB tuner to broadcast and rescaned.
> I still have digital channels that I can tune in but no listing
> information.  Also now I appear to have an odd mix of channel numbers such
> as 2,2-1,2-2,... ,83,83#3,93#3.
> Questions:
> 2a) how can I dump out a list of all the digital channels I've scanned and
> found?  I'd like to compare this list to my lineups to see if there's a
> better match with broadcast or digital cable.
> 2b) Do I need to correct this mix of 2-1 and 83#3 channels?  I'm guessing
> that I should have only one kind of channel separator and not two?
> 2c) What's the best way to wipe all the found channels to start over with
> scanning?
> 2d) Does anyone in Mountain View with comcast have a list of clear QAM
> channels that I should be able to tune and/or suggestions on how to get
> this
> working?  The list on
> http://www.silicondust.com/hdhomerun/lineupui/US:94043seems extremely
> optimistic and doesn't match what I've found so far for OTA
> or QAM256.
> 2e) Can anyone with comcast in Mtn View confirm that they have a mythtv
> setup working with clear QAM?  I'm beginning to think I'll have to get one
> of comcast's crappy STB tuners and dive into IR blasting that device from
> myth (yuck).
> If you made it this far thanks for reading and any suggestions or questions
> welcome!
> Matt
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mythtv.org/pipermail/mythtv-users/attachments/20090430/62d49cbb/attachment.htm>

More information about the mythtv-users mailing list