Re: [linux-dvb] TT S-1401 problem with kernel 2.6.24 ???

[Oliver Endriss <o.endriss@gmx.de>]

hermann pitton wrote:
> Hi,
> 
> Am Donnerstag, den 20.03.2008, 00:48 +0100 schrieb Oliver Endriss:
> > Andrew Junev wrote:
> > > Hello All,
> > > 
> > > I was successfully using two TT S-1401 DVB-S cards in my HTPC running
> > > Fedora 8. One of my antennas is positioned to Astra 19.2E and its
> > > signal quality is quite low in my area. But the setup worked just fine
> > > for me most of the time.
> > > 
> > > Last weekend I updated my system from kernel-2.6.23.15-137.fc8 to
> > > kernel-2.6.24.3-12.fc8. It was just a 'yum update', nothing else.
> > > Right after that I got no lock on most of Astra transponders (other
> > > satellites were still Ok, but they normally have a far better signal).
> > > After checking everything twice without any success, I booted back to
> > > 2.6.23.15 and my Astra was back!
> > > 
> > > Is this a known behavior? I suppose it was not discussed before, so
> > > this makes me think I am the only one with such a problem...
> > > Strange... I think the problem is somehow related to the signal level / 
> > > signal error rate. Looks like weak transponders are harder to lock
> > > with the new kernel...
> > > I'd appreciate any comments on this. I don't think I have an urgent
> > > need to move to 2.6.24 now, but I'd still like to be able to do that
> > > without loosing my TV... 
> > > 
> > > 
> > > P.S. I can see there's kernel-2.6.24.3-34.fc8 already available for
> > > Fedora 8. But I didn't try it yet...
> > 
> > Afaik this is a known regression in 2.6,24.
> > 
> > See 
> >   http://www.linuxtv.org/pipermail/linux-dvb/2008-February/023477.html
> > and
> >   http://www.linuxtv.org/pipermail/linux-dvb/2008-February/023559.html
> > for the fix.
> > 
> > CU
> > Oliver
> > 
> 
> hmm, thought that this we exactly did avoid on 2.6.24 and 2.6.25.
> 
> IIRC, this should never made it into 2.6.24, at least I thought we could
> always stop it on 2.6.25 before it harms.
> 
> Fedora downports from release canditates, and almost always is fine,
> so I don't trust the 2.6._24_ here.
> 
> If nothing else to do ..., might investigate it.

Unfortunately, the regression made it into the 2.6.24 series.
I just checked and found it in 2.6.24.2. :-(

So we should submit a bug fix for 2.6,24, too.

CU
Oliver

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