[linux-dvb] Re: TT DVB-T - Further problems

[Ed Wildgoose <Ed@Wildgooses.com>]

> Does this only happen if you tune to a certain channel? How is the signal 
> strength of the different channels if you use tzap? Does it help to tune back 
> to another channel? 
No, the signal strength looks ok, and I can just flick around between a 
few channels to make it happen (BBC channels).  However, you may be 
right that the signal strength is a factor.  I have noticed that it is 
*more likely* to happen when flicking to some of the other channels, but 
this may be coincidence.

Also, sometimes, what has happened is that I change to a channel, it 
looks like it has crashed, but then I change back and it gets rescued (I 
change fairly quickly).  But usually, once I change channel, get a black 
screen, then it stays dead.  Changing channels with vdr and tzap don't 
bring it back to life...

Output from tzap for one channel is:

status 1f | signal 3838 | snr 0000 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal 3838 | snr 0000 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal 3636 | snr 0000 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal 3637 | snr 0000 | ber 00000000 | unc 00000000 | 
FE_HAS_LOCK

> I remember that this happend also here, when DVB-T still 
> was on test in Berlin. It looked like a crash of the frontends internal 
> system controller. That's why I would like to know if this also happens with 
> the windows driver, because then it could be a SP8870 firmware problem. I 
> tried to change the code to get a better reset of the system controller, but 
> didn't succeed. I think just reloading the dvb-ttpci module helped. Can you 
> find out if that's the same on your machine? Or do you have to reload all 
> modules?      
I haven't yet tried these yet.  I will give it a try as you say.  I 
assume that narrowing it down to dvb-ttpci is a start?

I will try the windows driver as well and try to reproduce.  It will be 
tomorrow evening before I can report back now though.

Thanks for your interest!

Ed W



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