[mythtv-users] Switching channels only possible while mythfrontend is "offline"

[Thomas Otten]

I have installed a new system using Fedora Core 2 and a self compiled 
2.6.7 kernel. The tv card is an AverTV DVB-T card. I imported the MySQL 
database from my old installation (which did not have the problem I 
describe here, but I do not know why...).

When I start the frontend it shows the live program of channel 3 without 
problems. But when I switch to channel 4 the frontend freezes. When I kill 
the frontend and restart it, it shows channel 4. Switching back to channel 
3 freezes the frontend again.

So it looks to me like the channel configuration is ok. I can do the same 
with other channels,too. The "only" problem is changing channels.

The backend logfile is as follows:
--- snip ---
2004-07-02 21:36:51 Changing from None to WatchingLiveTV
2004-07-02 21:36:51 DVB#0 Using DVB card 0, with frontend Microtune 
MT7202DTF.
2004-07-02 21:36:51 DVB#0 Successfully tuned to channel 3.
2004-07-02 21:36:51 DVB#0 Recorder: Card opened successfully.Audiostream: 
Layer: 1  BRate: 64 kb/s  Freq: 44.1 kHzVideostream: ASPECT: 4:3  Size = 
720x576  FRate: 25 fps  BRate: 15.00 Mbit/s
2004-07-02 21:37:05 DVB#0 WARNING - Status: NO LOCK!
2004-07-02 21:37:05 DVB#0 Successfully tuned to channel 4.
2004-07-02 21:37:06 DVB#0 WARNING - No data from card in 1 second.
2004-07-02 21:37:07 DVB#0 WARNING - No data from card in 1 second.
2004-07-02 21:37:08 DVB#0 WARNING - No data from card in 1 second.
--- snip ---

Does anyone know what I can check to find the cause?

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