[mythtv-users] Channel scan doesn't work

[Jksj]

On 19/12/12 19:46, schlimbo at gmx.de wrote:
> Thanks for the tip.
> I tried kaffeine and the same thing happens: I get "tuning failed" when scanning.
>
> I have no idea how to proceed from here. Anyone have an idea what I could try to find the issue? Anyone has a similar HW-config?
>
> Thanks
>
> frank
>
> -------- Original-Nachricht --------
>> Datum: Wed, 19 Dec 2012 19:27:46 +0000
>> Von: Jksj <jksjdevelop at gmail.com>
>> An: Discussion about MythTV <mythtv-users at mythtv.org>
>> Betreff: Re: [mythtv-users] Channel scan doesn\'t work
>> On 19/12/12 09:09, schlimbo at gmx.de wrote:
>>> Hi,
>>> I am currently trying to switch from DVB-T to DVB-S. I installed a
>> brand-new mythbuntu (with mythtv-0.25). It finds my DD cine s2 fine; I can't see
>> any issues with dmesg, all looks good. However, neither the scan in mythtv
>> not the command-line scans work.
>>> I am using a quatro-lnb attached to a 5/8 multiswitch, telling Mythtv
>> each tuner is attached to a LNB.
>>> Using ZDF (for Astra) 11954000/hor/27500000 in mythtv-setup shows "no
>> lock", signal strength 80%, signal/noise 74% for a while and then quits
>> scanning without finding anything and reports a timeout.
>>> The scan tool shows the following:
>>>
>>> myth at mythserver:~$ sudo scan /usr/share/dvb/dvb-s/Astra-19.2E
>>> scanning /usr/share/dvb/dvb-s/Astra-19.2E
>>> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
>>> initial transponder 12551500 V 22000000 5
>>>>>> tune to: 12551:v:0:22000
>>> DVB-S IF freq is 1951500
>>> WARNING: >>> tuning failed!!!
>>>>>> tune to: 12551:v:0:22000 (tuning failed)
>>> DVB-S IF freq is 1951500
>>> WARNING: >>> tuning failed!!!
>>> ERROR: initial tuning failed
>>> dumping lists (0 services)
>>> Done.
>>>
>>> Any idea, suggestions?
>>>
>>> frank
>>>
>>>
>>> _______________________________________________
>>> mythtv-users mailing list
>>> mythtv-users at mythtv.org
>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>> The easiest way, I have found to get dvb-s going is to test it first
>> using Kaffeine --kill mythbackend first .Kaffeine seems to have the
>> simplest satellite setup mechanism and it will at least prove the card,
>> driver and dish are working before trying to set up Myth.
>> _______________________________________________
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>> mythtv-users at mythtv.org
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
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High when I was trying to get a tevii dvb-s2 card working I had similar 
symptoms. ie strong signal but tuning failure. In that case the fault 
was due to the firmware for the card failing to load. The linux driver 
still reported that all was well.
The problem could be in the control back to the lnb.  Have you shown 
that the multiswitch and lnb are working as controlled by the card, 
perhaps by testing the card in windows with the software provided?