[mythtv-users] Channel tuning broken in 0.24

[Michael T. Dean]

On 05/31/2012 12:53 AM, Michael Watson wrote:
> On 31/05/2012 11:45 AM, Igor Cicimov wrote:
>> I noticed that after upgrade to Mythtv 0.24 the channel tuning is 
>> awful. I'm using Leadtek DVB-T DTV2000H (using the digital receiver 
>> only) and the card was working fine for years on 0.20 and later for 
>> couple of months on 0.23-fixes. After upgrade to 0.24-fixes it can't 
>> scan half of the DVB-T channels in Sydney and recording on it is 
>> practically impossible. The distro is Mythbuntu 10.04 with the latest 
>> kernel from the repo (which I think is 2.6.35 but not sure I'm not at 
>> home now to check).
>>
>> What has changed in Mythtv to affect this card so badly? Anything I 
>> can do to improve the performance? And yes, I tried deleting all the 
>> cards,inputs,sources etc in the backend and recreating again but no 
>> changes. Or maybe the kernel driver cx88xx in the latest kernels does 
>> not play good with this card any more?
>>
>> Before rolling back to 0.23 I'll try to check the card performance 
>> outside Mythtv. In meantime, any suggestions to solve this highly 
>> appreciated.
> I had to increase the Tuning Timeout.  3000ms seemed to work well for 
> me in Melbourne.

Good advice.  I highly recommend a minimum of 3000ms/5500ms for tuning 
and signal timeouts.

Mike