Re: [mythtv] Can't scan or tune DVB-T in UK
Gareth Powell wrote: I'm trying to get MythTV up and running, and after a number of problems, I think I'm nearly there. I'm using MythTV 0.18+ out of CVS from about a week ago (although I'm happy to upgrade if it will help) on an i386 with basically FC2, but I've added all the prerequisite RPMs and I've got the 2.6.11+ kraxel1 patches. I'm using a Hauppauge Nova-T DVB-T card with the cx88-dvb module. xawtv displays video, but pops up a box saying can't play audio stream. It's not clear if it can't tune it, or simply can't find the audio card. Since I didn't want to use xawtv, but mythtv, I just moved on. With MythTV, I can't scan channels. I've been able to set up the card, and it seems to recognize it. When I run mythtv-setup and attempt to automatically tune in the channels, it doesn't work. I get three bars telling me I have signal strength of 16% and SNR of 75%, which doesn't sound good, but as I say, it's enough for xawtv to tune in all the stations. I downloaded dvbsnoop which I'd seen referred to in a couple of other posts. After a long wait, I got output from it once, but lost it in that window. Since then, I can't get any output from it at all. I was running it as: # dvbsnoop -n 1 600 where 600 is the video pid of BBC ONE. For reference, I am tuning to Winter Hill, generally using the channel frequency 754166670. This works for xawtv and dvbtune. # dvbtune -f 754166670 gives this output: Using DVB card Hauppauge Nova-T DVB-T tuning DVB-T (in United Kingdom) to 754166670 Hz polling Getting frontend event FE_STATUS: polling Getting frontend event FE_STATUS: FE_HAS_SIGNAL polling Getting frontend event FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC Bit error rate: 0 Signal strength: 10537 SNR: 65535 FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC Any help appreciated ... Send instant messages to your online friends http://uk.messenger.yahoo.com ___ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev Just a short note to say that I have had similar issues with MythTv CVS 2005-04-22. I cannot offer a direct solution but somehow I got around it (not sure how ...). It may be I tuned manually using dvbscan (aborted when finding PID's on appropriate frequency), then used mythth-setup to scan the channels. It may be that the current version of MythTv does not tune to the frequency you enter in the frequency box ... Terry ___ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
Re: [mythtv] Can't scan or tune DVB-T in UK
On Tue, 2005-05-03 at 15:21 +0100, Terry Barnaby wrote: Gareth Powell wrote: I'm trying to get MythTV up and running, and after a number of problems, I think I'm nearly there. I'm using MythTV 0.18+ out of CVS from about a week ago (although I'm happy to upgrade if it will help) on an i386 with basically FC2, but I've added all the prerequisite RPMs and I've got the 2.6.11+ kraxel1 patches. I'm using a Hauppauge Nova-T DVB-T card with the cx88-dvb module. xawtv displays video, but pops up a box saying can't play audio stream. It's not clear if it can't tune it, or simply can't find the audio card. Since I didn't want to use xawtv, but mythtv, I just moved on. With MythTV, I can't scan channels. I've been able to set up the card, and it seems to recognize it. When I run mythtv-setup and attempt to automatically tune in the channels, it doesn't work. I get three bars telling me I have signal strength of 16% and SNR of 75%, which doesn't sound good, but as I say, it's enough for xawtv to tune in all the stations. I downloaded dvbsnoop which I'd seen referred to in a couple of other posts. After a long wait, I got output from it once, but lost it in that window. Since then, I can't get any output from it at all. I was running it as: # dvbsnoop -n 1 600 where 600 is the video pid of BBC ONE. For reference, I am tuning to Winter Hill, generally using the channel frequency 754166670. This works for xawtv and dvbtune. # dvbtune -f 754166670 gives this output: Using DVB card Hauppauge Nova-T DVB-T tuning DVB-T (in United Kingdom) to 754166670 Hz polling Getting frontend event FE_STATUS: polling Getting frontend event FE_STATUS: FE_HAS_SIGNAL polling Getting frontend event FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC Bit error rate: 0 Signal strength: 10537 SNR: 65535 FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC Any help appreciated ... snip Just a short note to say that I have had similar issues with MythTv CVS 2005-04-22. I cannot offer a direct solution but somehow I got around it (not sure how ...). It may be I tuned manually using dvbscan (aborted when finding PID's on appropriate frequency), then used mythth-setup to scan the channels. It may be that the current version of MythTv does not tune to the frequency you enter in the frequency box ... snip This should be on -users but anyway, Make sure you fill out as many of the parameters as possible in the scanner. So that would be (from memory) 754166670 , bandwidth 8 inversion off Constellation 16, lp 2/3 hp 3/4 , guard_interval 1/32, transmit 2 hierarchy none, It does work, cos I'm on the same transmitter. ___ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
Re: [mythtv] Can't scan or tune DVB-T in UK
Sorry for not quoting, I'm using an uncooperative webmail system... I recently had to manually add a multiplex that didn't get added when scanning. It's frequency as 818.167 MHz, I added it and then tried to scan that multiplex only, it found nothing. Eventually I found that if I added 818MHz (no .167) as the multiplex frequency then it did work. I notice the frequency you mention has an offset like that, maybe you could try 75400 as the frequency. Regards, Simeon ___ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
Re: [mythtv] Can't scan or tune DVB-T in UK
--- John Pullan [EMAIL PROTECTED] wrote: This should be on -users but anyway, My apologies ... I've spent so long in the debugger I've come to think of myself as a developer, not a user :-) Make sure you fill out as many of the parameters as possible in the scanner. So that would be (from memory) 754166670 , bandwidth 8 inversion off Constellation 16, lp 2/3 hp 3/4 , guard_interval 1/32, transmit 2 hierarchy none, It does work, cos I'm on the same transmitter. It does work, as you say. And I now have 36 channels. I found though that I still have the same problem that got me going down this road, which is that the backend complains it doesn't have any PIDs. But with some more digging, I've found that that seems to be because the dvb_pids table is empty. I added the PIDs for ITV1 (which is the default channel 3) directly using MySQL and I was able to watch this station. Which leads me to two questions: 1. Am I doing something wrong that the PIDS table is not being filled in automatically when scanning? (the PIDs are returned in dvbscan) 2. It used to be possible (on the older versions) to type in the PIDs - I thought in setup - but this doesn't seem to be an option anymore. Am I missing something? Thanks for your help Gareth. Send instant messages to your online friends http://uk.messenger.yahoo.com ___ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
Re: [mythtv] Can't scan or tune DVB-T in UK
In message [EMAIL PROTECTED] Gareth Powell [EMAIL PROTECTED] wrote: It does work, as you say. And I now have 36 channels. I found though that I still have the same problem that got me going down this road, which is that the backend complains it doesn't have any PIDs. But with some more digging, I've found that that seems to be because the dvb_pids table is empty. The dvb_pids table is supposed to be empty - it isn't used anymore. I added the PIDs for ITV1 (which is the default channel 3) directly using MySQL and I was able to watch this station. Which leads me to two questions: The tables which used to hold PIDs are no longer used so whatever you did probably had little effect. 1. Am I doing something wrong that the PIDS table is not being filled in automatically when scanning? (the PIDs are returned in dvbscan) Nope. PIDs are determined on the fly when tuning to a channel now by reading the PMT and looking up the service ID to get the PIDs to use. 2. It used to be possible (on the older versions) to type in the PIDs - I thought in setup - but this doesn't seem to be an option anymore. Am I missing something? Nope. That's intentional. Tom -- Tom Hughes ([EMAIL PROTECTED]) http://www.compton.nu/ ___ mythtv-dev mailing list mythtv-dev@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
