I have two dvb-t cards, two NOVA-T USB, they are recognize well but I’m feeding only one with antenna source.
May I duplicate the antenna cable that arrive to my computer? If so how to do that??
Or may I configure some way mythTv???
At the moment I configured the second frontend to the same input source, the result is that to record simultaneusly from different stream channel seems ok, but at the end only one program is recorded, the other one is 0Kb , and I suppose the problem is that its antenna source is not fisically connected… am I right??
Depending on which Nova-T card you have, there may be an aerial out port as well as an input. If you only have a single aerial you can send that into the first card and use a very short cable to loop it into the second. That’s the was I do it with my setup and the quality is fine. If you do not have an aerial-out on you card, you will have to use an external powered splitter to split the signal in two with as little loss as possible.
I had Mythtv working fine up till yesterday (Mythbuntu 11.04 with Mythtv 0.24) then I found no channels would work. On checking backend I found the device numbers for the two DVB sources had swapped. One was a DVB-S card the other a DVB-T USB dongle.
This means it now tries to use the FTA card to find DTT channels and vice versa.
How can you stop Ubuntu assigning a different number to the DVB card? I assume something in the startup delayed the USB from being recognised.
I would personally try the udev option, although the description in the link above is rather general and a little too detailed. You may be able to find more specific instructions by using the above pages as a reference and doing some further searching.
Seems like the location and naming of the files is important for MythTV Setup to pick them up by default. The above link suggests naming the adapters as /dev/dvb/adapter101 etc to fool the setup utility into picking them up.
I appear to have some problems with Mythuntu 11.04 recognising both my tuner cards:
Hauppauge – Nova HD-S2 and
Hauppauge – HVR -2200
When I go to Capture Card Setup, “DVB DTV capture card (v3.x)” section, on the Nova Card comes up and I don’t get the “DVB Card Number”.
Does this mean that the HVR-2200 is not usable with Mythbuntu or is there someway of getting it to work. I know that this is card is definitely working as I am currently using it with Mediaportal at the moment.
So you would run a terminal and cut and paste those commands into it. Left mouse button to highlight the text and middle one to paste. Don’t copy the leading $, that’s the prompt.
The sudo prefix means run the command with admin (superuser) permissions. The first time you use this it will ask you for your password. That is your normal password which you logged in with. After that it remembers it and won’t ask again for 30 minutes.
If you are very new to the command line, I would suggest reading up and becoming familiar with it before you start. It takes a bit of getting used to but is the most powerful tool on Linux. Try here to begin with:
When I set up my system live tv was working fine. Now live tv starts in one channel and any other channel I try to change to, I get “Error opening jump program file buffer”. Scheduled recordings work fine, they all get recorded. When I select a channel in live tv there is a zero length mpg file created in the livetv directory. It seems that the front end cannot tune a channel but the back end manages fine.
Somewhere along the line I changed my system name. After that it did not work and I recreated the database with the /usr/share/mythtv/sql/mythtv_0.24.0.sql script. My problem is probably related to that. I have tried all kind of settings in front end and back end but live tv still does not work. I also deleted my capture card and sources and recreated them.
I am wondering whether to try uninstall mythtv and install again, or delete the database. Do you have any recommendation? What is the best way to delete and recreate the database? That script I used created a lot of guff in the database, it contains what looks like a lot of unneeded entries. I suspect that is the wrong script to use.
I saw that bug report and others like it. However since I had it working earlier I had hoped to get it working again. In my opinion there is certainly a bug, but hopefully I can find a workaround for when this happens. If I find a solution I will let you know, and maybe post it in that bug log.
Thanks for the excellent guide. It’s got me most of the way there – unfortunately the whole EIT / EPG thing is not happening for me.
I’m running MythTV (from Synaptic) on Ubuntu Natty and using a TBS6981 DVB-S2 card.
The card is working fine and I can watch TV via mplayer no problem. I can also watch live tv in MythTV frontend.
The problem I’ve got is the EIT EPG data isn’t populating correctly. When I follow your instructions and input the starting frequencies before scanning I get a full channel list but no EPG data (the slots in the guide screen just say ‘unknown’.
When I do a full scan on all transponders I get the occasional bit of data on the guide screen, but mostly it’s still full of holes.
If you are getting the occasional bit of data then I can only assume you’ve got it set up correctly. How long have you left it? I seems to remember it takes quite a while to update the EPG for all channels (there are quite a lot of them on Freesat).
You can also get extra EIT debug info by adding some extra logging to the mythbackend:
I solved the problem with the “Error opening jump program file buffer”. It was always starting live tv in a particular home shopping channel that I never want to watch and I could not change to any other channel.
I looked in the channel table to find a channel that I actually wanted to see and updated the default channel like this:
update settings set data = 1021 where value = ‘DefaultChanid’;
After this, LiveTV started in that channel and now I can change channels as much as I want, no problems.