<div class="gmail_quote"><div>As an easier followup question:</div><div>Does the cx18 driver support <span class="Apple-style-span" style="font-family: -webkit-monospace; font-size: 12px; white-space: pre; ">Hauppauge model 74591?</span></div>
<div>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:</div><div><br></div><div>
cx18-0: tveeprom cannot autodetect tuner!<br></div><div><br></div><div>?</div><div><br></div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Date: Thu, 30 Apr 2009 13:15:28 -0700<br>
From: Matt Beadon <<a href="mailto:matt.beadon@gmail.com">matt.beadon@gmail.com</a>><br>
Subject: [mythtv-users] Adding HVR-1600 to working PVR-500 mythtv<br>
setup -> no NTSC signal on HVR-1600 & ATSC guide info missing (comcast<br>
Mountain View, CA)<br>
To: <a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br>
Message-ID:<br>
<<a href="mailto:7a6963500904301315l1d1e28c6qde399bcbf64bf17a@mail.gmail.com">7a6963500904301315l1d1e28c6qde399bcbf64bf17a@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hi,<br>
I have a mythtv 0.21 setup running on debian lenny. It is my first<br>
experience with myth so it took me ages to get everything configured<br>
correctly. However now Comcast in Mountain View is cutting all analog cable<br>
for channels >34 so I'm forced to add a ATSC cabability or lose most of the<br>
channels I watch. :(<br>
<br>
Here's where I am so far:<br>
<br>
I followed the procedure here: <a href="http://www.mythtv.org/wiki/Hauppauge_hvr-1600" target="_blank">http://www.mythtv.org/wiki/Hauppauge_hvr-1600</a><br>
My first problem was that using the HVR-1600 with the PVR-500 my /dev/video*<br>
devices moved around on me depending on cold boot or warm reboot. So I<br>
created a set udev rules (below) to give me a consistent place to link my<br>
various tuners.<br>
/etc/udev/rules.d/56-custom.rules:<br>
<br>
> KERNEL=="video[0-2]*", ATTR{name}=="cx18*0 encoder MPEG*",<br>
> SYMLINK+="HVR-1600"<br>
> KERNEL=="video[0-2]*", ATTR{name}=="ivtv0 encoder MPG*",<br>
> SYMLINK+="PVR-500_1"<br>
> KERNEL=="video[0-2]*", ATTR{name}=="ivtv1 encoder MPG*",<br>
> SYMLINK+="PVR-500_2"<br>
> SUBSYSTEM=="dvb", DRIVERS=="cx18", SYMLINK+="HVR-1600_digital"<br>
><br>
Probably the last one is unecessary but I don't think it hurts anything (?).<br>
<br>
Problem #1: No video on /dev/HVR-1600 (analog)<br>
<br>
dmesg reports that the HVR-1600 was initialized. The only odd message I see<br>
is:<br>
<br>
> [ 16.838687] cx18-0: tveeprom cannot autodetect tuner!<6>cx18-0:<br>
> Simultaneous Digital and Analog TV capture supported<br>
><br>
Haven't been able to figure out if the tveeprom msg is important or not?<br>
<br>
Using mplayer to test the various video devices I can see video on<br>
/dev/PVR-500_* but "mplayer /dev/HVR-1600" gives me nothing but static.<br>
Just for kicks I also tried "mplayer /dev/video0, 1 and 2. Right now<br>
HVR-1600 is video1 with PVR-500 on 0 & 2. As expected video0 & 2 work fine<br>
and video1 shows nothing but static.<br>
<br>
As further confirmation I tried "ivtv-tune -c 47 -d /dev/video[0-2]" which<br>
gave me:<br>
<br>
> /dev/video0: 361.250 MHz (Signal Detected)<br>
> /dev/video1: 361.250 MHz<br>
<br>
/dev/video2: 361.250 MHz (Signal Detected)<br>
><br>
<br>
Suggestions for problem #1? The only thing that I haven't tried yet is<br>
swapping the cable I'm using from the splitter between the analog and<br>
digital inputs on the HVR-1600. I'll try that tonight though I think it's<br>
unlikely that I have a bad cable.<br>
<br>
Problem #2: No guide data for ATSC channels<br>
<br>
After scanning for both QAM-256 and QAM-64 channels using "-" (minus) as the<br>
channel separator (since that matches the schedulesdirect listing better).<br>
I have found a bunch of unecrypted channels that myth can tune. I added a<br>
schedulesdirect lineup for "Comcast - Digital" and setup my DVB tuner as<br>
described in the HVR-1600 wiki. Fired up the backend and frontend after<br>
running mythfilldatabase but all the channels were listed as unknown. I<br>
could tune in a bunch of channels but without listing data why bother?<br>
<br>
So after a bunch of searching online I got the idea that maybe<br>
schedulesdirect "Local Broadcast Listings - Antenna" seemed to more closely<br>
match the channels I was tuning. So I switched my input connection for the<br>
DVB tuner to broadcast and rescaned.<br>
<br>
I still have digital channels that I can tune in but no listing<br>
information. Also now I appear to have an odd mix of channel numbers such<br>
as 2,2-1,2-2,... ,83,83#3,93#3.<br>
<br>
Questions:<br>
2a) how can I dump out a list of all the digital channels I've scanned and<br>
found? I'd like to compare this list to my lineups to see if there's a<br>
better match with broadcast or digital cable.<br>
2b) Do I need to correct this mix of 2-1 and 83#3 channels? I'm guessing<br>
that I should have only one kind of channel separator and not two?<br>
2c) What's the best way to wipe all the found channels to start over with<br>
scanning?<br>
2d) Does anyone in Mountain View with comcast have a list of clear QAM<br>
channels that I should be able to tune and/or suggestions on how to get this<br>
working? The list on<br>
<a href="http://www.silicondust.com/hdhomerun/lineupui/US:94043seems" target="_blank">http://www.silicondust.com/hdhomerun/lineupui/US:94043seems</a> extremely<br>
optimistic and doesn't match what I've found so far for OTA<br>
or QAM256.<br>
2e) Can anyone with comcast in Mtn View confirm that they have a mythtv<br>
setup working with clear QAM? I'm beginning to think I'll have to get one<br>
of comcast's crappy STB tuners and dive into IR blasting that device from<br>
myth (yuck).<br>
<br>
If you made it this far thanks for reading and any suggestions or questions<br>
welcome!<br>
Matt<br></blockquote></div>