[linux-dvb] twinhan 1025 - problems locking onto signal

Manu Abraham abraham.manu at gmail.com
Mon Aug 13 19:11:47 CEST 2007


On 8/13/07, Simon Kenyon <simon at koala.ie> wrote:
> Manu Abraham wrote:
> > On 8/13/07, Simon Kenyon <simon at koala.ie> wrote:
> >
> >> Manu Abraham wrote:
> >>
> >>> On 8/13/07, Simon Kenyon <simon at koala.ie> wrote:
> >>>
> >>>
> >>>> Simon Kenyon wrote:
> >>>>
> >>>>
> >>>>> just bought 3 cards for my mythtv master backend. silly me.
> >>>>>
> >>>>> anyway, using szap i find that tuning to a particular channel is at best
> >>>>> a hit and miss affair.
> >>>>> i have a 4x16 multiswitch which feeds astra28.2E into these three cards
> >>>>> and 4 satellite receivers.
> >>>>> they all get decent signal. i previously had a nexus-s and a technotrend
> >>>>> 1500ci in the box and they had no problems with the signal.
> >>>>>
> >>>>> is there anything i can do - other than binning them?
> >>>>> i'm using the hg tree of v4l-dvb.
> >>>>> is there an expermental tree out there with some improvements for this card?
> >>>>>
> >>>>>
> >>>>>
> >>>> a data point is that it will not lock onto any signals with a vertical
> >>>> polarization
> >>>> but will lock on to signals with a horizontal polarization (at the
> >>>> second attempt - not the first).
> >>>> the latter sounds like a timing issue.
> >>>>
> >>>>
> >>> Some of the 1025 cards have been very nasty. It resembles an older
> >>> case where one card would not tune to either vertical (or was it
> >>> Horizontal) completely stuck at one volytage level.
> >>>
> >>> To take a bite at it, load the dst module with verbose=5, module
> >>> parameter. look at the logs, if you have timing errors you will see
> >>> them in the log.


can you check whether this tree behaves the same ? http://jusst.de/hg/v4l-dvb/



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