[mythtv-users] Reinstalled my system and now live TV doesn't work. Need help debugging recording profiles.

[Matt Beadon]

I moved from ubuntu 9.10 with 0.23-fixes (JYA repo) to a fresh install of
mythbuntu 10.04 with 0.23-fixes on my combined BE/FE.  The upgrade was
somewhat annoying (fought with nouveau for a while before winning) and now
everything is settling down.
I thought that I had everything working but then I tried live TV.  I know, I
know, why watch live TV ... but I still want it to work.  Recording shows
works fine on all my tuners and I can record a show and watch it while it is
still recording with no problem but I just can't seem to watch "live" tv.

What happens is the "Please wait" screen comes up and then times out after a
minute or two dropping me back to the menu.  The frontend log doesn't have
much in the way of information:

2010-08-04 00:31:18.887 TV: Attempting to change from None to WatchingLiveTV
2010-08-04 00:31:18.887 MythContext: Connecting to backend server:
192.168.XX.YY:6543 (try 1 of 1)
2010-08-04 00:31:18.888 Using protocol version 23056
2010-08-04 00:31:18.888 Spawning LiveTV Recorder -- begin
2010-08-04 00:31:19.121 Spawning LiveTV Recorder -- end
2010-08-04 00:31:19.122 ProgramInfo(): Updated pathname '':'' ->
'1029_20100804003118.nuv'
2010-08-04 00:31:19.125 We have a
playbackURL(/usr/tv-shows/TV-shows/1029_20100804003118.nuv) & cardtype(V4L)
2010-08-04 00:31:19.137 We have a RingBuffer
2010-08-04 00:31:59.193 TV Error: StartRecorder() -- timed out waiting for
recorder to start
2010-08-04 00:31:59.193 TV Error: LiveTV not successfully started

However the backend does have some interesting info:

2010-08-04 00:31:18.895 TVRec(6): Changing from None to WatchingLiveTV
2010-08-04 00:31:18.906 TVRec(6): HW Tuner: 6->6
2010-08-04 00:31:19.056 ProgramInfo(): Updated pathname '':'' ->
'1029_20100804003118.nuv'
2010-08-04 00:31:19.070 NVR(/dev/video1): Unknown video codec.  Please go
into the TV Settings, Recording Profiles and setup the four 'Software
Encoders' profiles.  Assuming RTjpeg for now.
2010-08-04 00:31:19.071 NVR(/dev/video1) Error: Unknown audio codec
2010-08-04 00:31:19.122 NVR(/dev/video1): Won't work with the streaming
interface, falling back
2010-08-04 00:31:19.124 AutoExpire: CalcParams(): Max required Free Space:
12.0 GB w/freq: 9 min
2010-08-04 00:31:19.125 ProgramInfo(): Updated pathname '':'' ->
'1029_20100804003118.nuv' VIDIOCGCHAN: Invalid argument
2010-08-04 00:31:19.175 ProgramInfo(): Updated pathname '':'' ->
'1029_20100804003118.nuv' VIDIOCGMBUF:: Invalid argument
2010-08-04 00:31:59.198 ProgramInfo(): Updated pathname '':'' ->
'1029_20100804003118.nuv'
2010-08-04 00:31:59.198 TVRec(6): Changing from WatchingLiveTV to None

When I did the upgrade from 9.10 to 10.04 I changed my hostname because I
wanted to reset my FE settings since I did a lot of blundering around in
there getting used to mythtv.  However I don't remember ever changing the
recording profiles.  I have a PVR-500 (dual NTSC) and HVR-2250 (dual ATSC +
multirec = 4 tuners).  Can someone suggest how to reset my recording
profiles to functional default values or suggest settings that should work?
I really don't care about much about quality or bitrate since live tv is
rarely used in my house but I want something that will "just work".

Poking around a bit more I found that the only recording profile that uses
RTjpeg is the "software encoders (v4l based)" but I don't have any software
encoders...  Under recording profiles I have:
Software Encoders (v4l based)
Hardware DVB encoders
Transcoders

I don't have any software encoders so I'm a little confused why that entry
seems to be used by the backend.  The wikis and google have let me down as
most of the info regarding recording profiles seems to be out of date.  I'd
appreciate any help.

thanks
Matt
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