[PATCH] Re: [linux-dvb] Twinhan fails horizontal initial scan

Allan Stirling Dibblahdvb0042 at pendor.org
Mon Jun 20 16:27:34 CEST 2005

Manu Abraham wrote:

> Islam Amer wrote:
>> Hi all. First of all I'd like to thank you for all your efforts. I am 
>> a happy twinhan user :) , I had reported earlier that my card
>> didn't work on linux. I am now using it perfectly with 2.6.12-rc6-mm1
>> I figured out all the stuff about scan and szap and mplayer. I can scan
>> transponders with vertical polarization, and watch channels on them that
>> have vertical polarization perfectly.
>> But horizontal scans fail and even if I write channel information
>> manually szap or mplayer fail to tune.
> Can you check whether the attached patches fixes that.. patches to be 
> applied in the incremental order only..
> Should be applied either to a vanilla 2.6.12, since all CVS changes 
> for the dst went in to mainline..
> Or can be applied against the latest CVS, but would require the bttv 
> patches too, to work properly

Tried these patches. Another (budget) card gives the following:

10714 MHz H | signal 48568 | snr db33 | ber 00000000 | unc 00000000 | LOCK
10729 MHz V | signal 49921 | snr dfec | ber 00000000 | unc 00000000 | LOCK
10743 MHz H | signal 46722 | snr df0e | ber 00000000 | unc 00000000 | LOCK

In less than a second per transponder.

With a virgin 2.6.12, I get locks on vertical channels only (reasonably 
fast, with no errors in the log that I remember). Horizontal channels 
don't tune.

With these patches, I get no locks at all :(

This is with a DSTCI card...



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