[linux-dvb] Cinergy 1200 DVB-T TDA10046H / auto mode causes problems

[Christian Cier-Zniewski <christian.cier@uni-dortmund.de>]

Hello,

I am using the latest CVS HEAD source with Kernel 2.6.8.
The tda1004x driver seems to have problems with quickly tuning to 
another frequency. Sometimes it did not tune at all. I tried this with 
vdr-1.3.16. Switching channels was very slow.

After studying the code a little bit, I found the following comment:

// Hardcoded to use auto as much as possible
// The TDA10045 is very unreliable if AUTO mode is _not_ used. I 
// have not
// yet tested the TDA10046 to see if this issue has been fixed
//fe_params->u.ofdm.code_rate_HP = FEC_AUTO;
//fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO;
//fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO;

After commenting out the above three lines, everything worked pretty 
fine and quick. My frontend uses a TDA10046H.

Regards,

Christian