I think users is the right forum for this message, but let me know if dev is more appropiate.<br><br>I am having trouble getting myth to tune my hd-5500. As a precursor, I have verified that dtvsignal shows appropiate strength on channels I believe it should have. Additionally, using the getatsc program gives me a mpeg stream I can play on the machine w/ sound. So, I hope I have narrowed the gap is inside myth at this point.
<br><br>The last dtvsignal was on feq 48 (channel 4). <br><br>To start fresh, I dopped the mythconverg database and started over. I also have a hauppauge 500 card installed, but this time through I didn't even add it to the setup. I added the 5500 using the dvb
3.x driver (not the v4l 5500) and it recogized it was in slot dvb 0. I disable "free to air" and start a scan in input connections. Every channel frequency finds channels 4.1, 4.2 with the appropiate callsign! Well, it still figures it out and I stop the scan. I use dtvsignal to move to freq 39 (channel 7) and re-scan. Now it adds
7.1,7.2 to my list with the appropiate callsign (at every freq!). <br><br>Now I start up the frontend. Waqtching tv I can view 7.1, 7.2 really well, HD well in fact (at least 7.1 which is the hd channel). But attempting to go to
4.1 results in "no lock". Going back to 7 give me a great demod channel. <br><br>If I shutdown the front & back - use dtvsignal to retune to freq 48 (channel 4) and restart it all up - now I can see channel
4.1, 4.2 really well, but no lock on 7.1, 7.2.<br><br>There are a few odd things I see looking at dmesg and verbose logs. Every once in a while I see one of these fly in dmesg: <br>Mar 21 21:27:21 oak kernel: lgdt330x: lgdt330x_set_parameters: Modulation type(0) UNSUPPORTED
<br><br>Tracing this down, it looks like the Modulation might be trying to be set as QPSK - (a rough look at /usr/include/linux/dvb/frontend.h and/or libmythtv/dvbtypes.h), but I can't find a direct corrleation. It happens twice - on startup when it preset to
4.1 (wasn't "tuned") and when I try to change back to 4.1, although the myth logs show success:<br><br>2007-03-21 21:28:55.570 DVBChan(0) Warning: Symbol Rate setting (0) is out of range (min/max:5056941/10762000)
<br>2007-03-21 21:28:55.570 DVBChan(0): Frequency: 677000000 Modulation: QPSK<br>2007-03-21 21:28:55.570 DVBChan(0): Old Params: Frequency: 623000000 Modulation: QPSK<br> DVBChan(0): New Params: Frequency: 677000000 Modulation: QPSK
<br>2007-03-21 21:28:55.570 DVBChan(0): Tune(): Tuning to 677000000Hz<br>2007-03-21 21:28:55.572 dvbchannel.cpp:wait_for_backend: Status: Signal,Carrier,FEC Stable,Sync,Lock,<br>2007-03-21 21:28:55.572 DVBChan(0): Tune(): Frequency tuning successful.
<br>2007-03-21 21:28:55.572 DVBChan(0): SetChannelByString(4.1): Tuned to frequency.<br><br><br>What is going on? Any help appreciated. I have the verbose log in its entirety if anyone needs more detail.<br>