Re: TT S-1401 problem with kernel 2.6.24 ???

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Hello Andrew,

Am Montag, den 31.03.2008, 08:28 +0400 schrieb Andrew Junev:
> Hello Hermann,
> 
> Monday, March 31, 2008, 1:31:14 AM, you wrote:
> 
> 
> > yes, you are right.
> 
> > changeset:   6579:816f256c2973
> > user:        Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
> > date:        Thu Nov 08 09:54:53 2007 -0200
> > summary:     Fix bug #8824: Correct support for Diseqc on tda10086
> 
> > The above changeset, to fix bug #8824,
> 
> > http://bugzilla.kernel.org/show_bug.cgi?id=8824
> 
> > also needed for DVB-S support on the saa7134 LifeView Trio, the triple
> > Creatix CTX948 and the MD8800 Medion Quad, did break the Pinnacle 400e
> > and the TT S-1401, since both have the LNB supply chip in such a way
> > connected, that it can't generate the 22kHz tone on its own, but needs
> > it provided by the tda10086 demodulator.
> 
> Ummm... I'm not sure this is the problem I got... Bugzilla says this
> was a problem in previous kernels as well, which is not the case for
> me. And when I faced a problem in 2.6.24, I tried to connect my
> antenna without a Diseqc - it made no difference...

yes, the Bugzilla report is not about your card, but the saa7134
LifeView FLYDVB-S with single LNB support by an isl6421, same as on the
LifeView Trio PCI and cardbus. The newer cards have an isl6405 with dual
LNB support, also it is behind the i2c gate of the tda10086. Forgot to
mention that there is also the triple MD7134 (Creatix CTX925) supported
now with DVB_PLL_PHILIPS_SD1878_TDA8261 tuner, no reports on the lists
so far.

For cards with lnbp21 Hartmut added the Philips Snake on saa7134.
This one can provide the 22kHz tone by that LNB supply chip in opposite
to your card with the same chip. It is decision of the manufacturer to
do it or not turned out. This caused the regression for you on 2.6.24.

> Well, maybe I missed something in the description and this patch
> actually solves my problem either... So I'm looking forward to test
> the 'new' .24 kernel with this patch.

There is not any other related code changed, except the above on
tda10086. The fix is already confirmed on v4l-dvb devel.

The point is, before any multiswitches come in, you need the tone to be
able to switch to high-band on an universal LNB.
If it takes too long or you don't want to compile your own patched
2.6.24.4, just install v4l-dvb master. On 2.6.25 it is fixed too.

Cheers,
Hermann




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