[mythtv-users] Only first channel available, changing channel not working

[Brian Wood]

Dave M G wrote:
> MythTV Users,
> 
> I've got a fairly fresh installation of the most recent Mythbuntu up and 
> running, on a computer that has a Hauppauge PVR-150.
> 
> I've mostly succeeded in getting broadcast television to work. When I 
> select to watch television, I get a clear video and audio signal.
> 
> When I try to change channels, however, the on screen display shows the 
> number changing, but the channel does not actually change. There isn't 
> even any kind of flicker or pause indicating any attempt to switch a 
> channel. The only thing changing is the channel number. Other than that, 
> it stays on the first channel.
> 
> In the mythbackend interface, I was able to scan for channels in my area 
> (Japan broadcast) and it seemed to have detected the 11 or so channels 
> that should be available.
> 
> Since MythTV seems to be detecting the channels, I'm at a loss as to 
> what to try next in order to diagnose the problem.
> 
> Any advice or suggestions would be most welcome.

Unless your PVR is actually broken this is most likely a setup problem.

See if you can change channels outside of Myth to confirm the card is
working. If you happen to have a Windoze box you might even try the card
under that OS.

Make sure you do not have anything specified as a channel change script.
Look at your startup log and make sure the tuner is correctly recognized
(Hauppauge used many different tuners in the same card). Make sure you
correctly selected the card type. Make sure you have selected the
correct channel map (off-air, cable-std, cable-HRC etc.).

Look at your logs to see if there was an error when changing channels.
You may have to increase the log verbosity to see an error.

beww