[mythtv-users] Problem changing channels with cvs version of MythTV

[Anders Hanson]

Often when I change between two dvb channels the picture freezes and the 
backend
eventually printouts the following error message.

2004-03-18 19:40:06 Using profile 'Live TV' to record
2004-03-18 19:40:06 DVB#0 Using DVB card 0, with frontend VES1820 based 
DVB-C frontend.
2004-03-18 19:40:06 DVB#0 Trying to tune to channel 1.
2004-03-18 19:40:06 DVB#0 Frequency: 314000000 Symbol Rate: 6875000. 
Inv:Auto Fec:None Mod:64
2004-03-18 19:40:06 DVB#0 Successfully tuned to channel 1.
2004-03-18 19:40:06 DVB#0 CAM - Cached PMT found.
2004-03-18 19:40:07 DVB#0 Recorder: Card opened successfully.
2004-03-18 19:40:07 DVB#0 CAM - Cached PMT found.
2004-03-18 19:40:07 DVB#0 DVB Quality monitor is starting at 10s for card 0
2004-03-18 19:40:07 DVB#0 Adding pid 4356, type 0
2004-03-18 19:40:07 DVB#0 Adding pid 4100, type 1
2004-03-18 19:40:07 2       ok
2004-03-18 19:40:07 1       1
2004-03-18 19:40:07 5       29.97
2004-03-18 19:40:08 DVB#0 WARNING - No data from card in 1 second.
.....
2004-03-18 19:38:12 DVB#0 WARNING - No data from card in 1 second.
Couldn't read data from the capture card in 15 seconds.  Game over, man.

The dvb card is a Fujitsu Siemens  DVB-C card with a Viaccess cam.

Why is there no data from the card when the channel is successfully tuned?

/Anders