[mythtv-users] DVB issue: unable to tune to off air channels, can't skip to next channel

[Mudit Wahal]

Hi,

I've HD3000 PCI hdtv tuner card using the DVB drivers (stock 2.6.12.1
kernel) and stock myth v0.18 (with 16mb ringbuffer size instead of
standard 2mb). I'm recording OTA (over the air) channels. In my area,
PBS is broadcasting 9_1 to 9_5. But in the evening (after 8pm ?), they
turn off 9_3 to 9_5 channels. Only 9_1 and 9_2 are being broadcasted.

The channel database has information for 9_3 to 9_5 though. When I
start watching channel 9_2 and then try to goto next channel via UP
arrow key, the DVB fails and wont let me goto 9_3. This is fine as 9_3
is not being broadcasted. But I think after couple of failed attempts,
it should goto the next channel 9_4 and then goto 9_5, eventually
going to a channel which is actually broadcasting. The only way to get
out of this is by entering a channel number from the keyboard.

Has anyone found any alternative way to overcome this issue ?
Here are my logs from the logfile:

2005-07-14 22:00:35.926 DVB#0 Successfully tuned to channel 65_1.
2005-07-14 22:00:58.660 DVB#0 Successfully tuned to channel 7_1.
2005-07-14 22:01:28.459 DVB#0 Successfully tuned to channel 7_2.
2005-07-14 22:01:47.946 DVB#0 Successfully tuned to channel 9_1.
2005-07-14 22:02:02.112 DVB#0 Successfully tuned to channel 9_2.
2005-07-14 22:02:26.099 DVB#0 ERROR - Tuning for channel #9_3 failed.
2005-07-14 22:02:45.640 DVB#0 ERROR - Tuning for channel #9_3 failed.
2005-07-14 22:03:05.465 DVB#0 ERROR - Tuning for channel #9_3 failed.
2005-07-14 22:03:25.937 DVB#0 ERROR - Tuning for channel #9_3 failed.
2005-07-14 22:04:03.082 DVB#0 ERROR - Tuning for channel #9_3 failed.
===== here are restarted myth again with startchan hack set to 7_1 =====
2005-07-14 22:07:48.769 DVB#0 Successfully tuned to channel 7_1.
2005-07-14 22:08:21.855 DVB#0 Successfully tuned to channel 7_2.
2005-07-14 22:08:37.661 DVB#0 Successfully tuned to channel 9_1.
2005-07-14 22:08:56.502 DVB#0 Successfully tuned to channel 9_2.
2005-07-14 22:09:21.350 DVB#0 ERROR - Tuning for channel #9_3 failed.

=======================================

Thanks

Mudit