Tuning a pvrusb2 device. Every attempt has failed.
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Still trying to get the OnAir Creator to work. It is properly recognized by the pvrusb2 driver, but I can't seem to get any further. I'm now trying to scan the digital channels. What I have already tried: o Channel scan with mythtv completes, but when trying to view any of the supposedly found channels, I get a blank screen. Mythtv says it can't get a signal lock. o Channel scan withh kaffeine: as it progresses, I see the occasional green light, most often with a relatively low number (15-25% or so) of signal strength and an even lower number (1-3% or so) of SNR. When the progress bar reaches about 80% the scan suddenly ends and there is nothing in the right column, where the found channels are supposed to go (right?). Usually the next operation I try crashes kaffeine. I'm still trying to find gdb on this new lenny install. Until I do I won't be able to get a trace-back. o Scan with 'scan' from dvb-tools. I used the us-ATSC-center-frequencies-8VSB file from kaffeine. I get this: scanning /tmp/us-ATSC-center-frequencies-8VSB using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' >>> tune to: 57028615:8VSB WARNING: >>> tuning failed!!! >>> tune to: 57028615:8VSB (tuning failed) WARNING: >>> tuning failed!!! ... [ exactly the same output for most channels but then I get a few channels like this ] >>> tune to: 497028615:8VSB WARNING: filter timeout pid 0x0000 WARNING: filter timeout pid 0x1ffb ... dumping lists (0 services) Done. o If I try to tune it (to one of the frequencies that gives a filter timeout, with dvbtune from dvb-tools) I get this: > dvbtune -f 533028615 Using DVB card "LG Electronics LGDT3303 VSB/QAM Frontend" Unknown FE type. Aborting o scantv is for analog only, and it doesn't have NTSC norm, but in any case, it seems to put the device into analog mode (it has an analog tuner) and turns the red led off. From observation, it seems that when the device is accessed in analog mode (via /dev/video0) the led goes off, when accessed through the /dev/dvb/adapter0, it comes back on. o change-channel.sh that comes with the pvrusb2 driver. The above frequency list (from kaffeine) is apparently the wrong format for this script. I'll have to look further into the proper format. Of course it would be quicker if someone can point me to a list of us channels in the proper format. The procedure described in the script to obtain the frequencies depends on frequency lists in /usr/share/doc/xawtv, but there is no file for us frequencies. o femon returns this, which makes sense since the card is not tuned to anything: FE: LG Electronics LGDT3303 VSB/QAM Frontend (ATSC) status | signal 0000 | snr 0000 | ber 00000000 | unc 0000fbdf | Can anyone suggest other tools I might have missed? Explain why I'm getting the results above? Since both mythtv and kaffeine find some channels in the scan, shouldn't I be able to watch them? To narrow down the problem, I was going to tune the card to one of the channels and then use mplayer to read directly from the device, but I can't even change the channel. Any suggestions would be welcome. Thanks. A. _______________________________________________ linux-dvb users mailing list For V4L/DVB development, please use instead linux-media@xxxxxxxxxxxxxxx linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb