But i also tried it with fixed values of 2 and 3 as third parameter for sp5659_set_tv_freq() (instead of the zero). And with a value of 3 i have a stable picture and sound nearly immediately on every channel. The disadvantage seems to be that sometimes i get on switching only a black screen without sound. Then i have to switch to a complete different frequence, before a i can switch successful to the desired channel.
Sounds all to familiar with a Nova-T feeding a DVB-s card to decode in the UK. Strange thing is: It works near to perfect with 0.9.4 and ever since NEWSTRUCT channel changes on some channels in particular give black screen / no sound (or sound for 2 sec) 8 out of 10 times. Beacause of that observation (and if it's the same problem) it shouldn't really be hardware related. Also tuning and delivering data from the Nova-T seems fine, but the decoding mysteriously stops on the DVB-s card and the buffer in vdr goes to 100%.
As I have described earlier in this list I had simlar problems, and played with both the PLL power and the PLL divider (to get faster feedback to the PLL) and could improve the situation, but never got it really good. It mostly seems to have been because I had a lousy 12V feed, I ended up replacing the power supply and moved a 12V fan which was connected to the mother board to a separate connector. If you want to get more info about playing with your tuner you are welcome to contact me, but I'd first check the power supply.
I still have another interresting problem though, which I as far as I know am the only one to have: I need to run an older firmware in the SP8870 than any other person I have spoken with, or I get serious disturbances, shown as intermitten higher BER every 2-5 seconds with for example tzap on one of four channels, and the same problem but maybe only every 10 seconds and not as bad on another channel. On the two last frequencies it doesn't matter which firmware I run.
Also sounds familiar but only on the same channels that also have "decoding" problems.
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