[linux-dvb] Re: NEWSTRUCT doesn't tune

["Frank Meyering" <meyering@imst.de>]

Hi,

the problem occurs also with DVB-c cards. The first time I noticed the
problem was with driver snapshot from 20021022. Therfore I guess the
critical change was made in 21st October 2002. Older driver versions don't
have these problems, but they don't work with vdr-1.1.15 :-(.

I added a line calling czap in the runvdr script. Since czap manages it
sooner or later to tune a channel this is a nice workaround. Please notice:
The problem occurs only direct after module initialisation. Once a channel
is tuned there is no problem further on. Also a vdr restart with loaded
driver causes no problem. But reloading the driver will cause trouble.
Sometimes czap reports a lock in the second line, sometimes it takes up to
30 lines until it locks. Status is eiher "00" or "07", signal, snr, ber and
unc are changing randomly. I was not able to detect an algorithm or to
reproduce the same czap output twice (for example loading the driver direct
after a cold start and tuning "Das Erste" causes every time different
outputs).

best regards

Frank


Frank Meyering
IMST GmbH
Information and Communication Systems
Carl-Friedrich-Gauß Str. 2
47475 Kamp-Lintfort
Tel: + 49 (0)2842 - 981.411
Fax: + 49 (0)2842 - 981.499
E-mail: meyering@imst.de
Internet: http://www.imst.de

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Prof. Dr.-Ing. Ingo Wolff
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